**Disclaimer: This might be long winded!**
So over the winter I intend to start figuring out stuff in regards to what I want to do with my t-bird in the future. This includes researching and amassing parts for the projects. I have already done a few things already but they've been typically minor and insignificant, i.e. adding a K&N air filter and FMS plug wires and cap and rotor. I have also been slowly addressing problems that existed when I was given the car like valve cover gaskets (a 7 hour nightmare!) transmission leaks, and next up the oil pan :shoothead !!
Anyways one of the major fixes that came up (and the real topic of the post) was the exhaust. I ended up losing the tailpipe one day (came off exactly at the ler), and decided to take care of it asap. I had been looking into putting a dual exhaust on and had been going to different shops trying to find someone to do it. Needless to say none of the local boys could do it the way I wanted. So after a bit-o-research I found that the 88 model had a dual that was a direct bolt on. I bought the parts, Y-pipe, tailpipes, and dynomax super turbo lers, and took them to a shop that said they would do the install for me. Well needless to say when I got the car back, I wasn't happy at all. I didn't get the sound I wanted, I had to compromise on the look I wanted (stainless straight pipes out the back), and all in all wasted money all the way around. So now 2 months later I've got another exhaust leak (the connection for the front to rear cat's) and i'm fustrated to heck.
Not too long after I got the exhaust done I was browsing around coolcats.net and checked through the exhuast section. This time I was paying attention and came across the Mark VII h-pipe setup. Well i've gone and done more research and pricing and I believe i've come up with a setup that will work for my application. I have a couple questions though:
1: Are all v8 compatible mustang headers 1 & 5/8's ?
2: I read a post on the old forum of someone saying they used or that monte carlo tailpipes can be used on our cars since they are longer. If this is true do the bends for the axle allow for clearance?
3: Does the high flow catalytic convertor for the mark listed on coolcats.net still exist anywhere?
Here's a pic of the parts for the setup, along with the prices from summit racing and advance auto parts (cat-convertor). I do have provisions for the o2 sensor issue, and exhaust clamps, I just didn't list those. Again sorry for the long post, I promise my subsequent ones won't be anywhere near as long!!
http://www.foxtbirdcougarforums.com/attachment.php?attachmentid=120&stc=1
Exhaust Setup.jpg
You wouldn't have to get a Lincoln H-pipe. You could buy any aftermarket one for a fox (79-93) Ford Mustang, probably a lot cheaper, too. Headers, also... you may be able to obtain a stock Mustang used set from e-bay for cheap. Or, if you want aftermarket, 1 1/2 and 1 5/8" primary versions are available. The rule is, 225 hp and up use 1-5/8 and below that should use the 1 1/2". The intermediate pipes look like they're decent priced. I paid $50 for a set from MAC, however they were 2.5".
My setup is as follows:
Stock Mustang Headers from eBay, Summit Off-Road H-pipe (you may not be able to use this due to emissions), Flow tubes (intermediate pipes) from MAC, Summit 2-tube lers (sound like flowmasters, a bit quieter). It sounds decent (ask atendees of this years cat jam) and the whole deal only cost me $350, installed it myself. You probably noticed that I still don't have tailpipes though. That's because I don't want to buy mustang pipes and modify them, so I'll have to get some tailpipes made at a shop, unless those monte pipes work.
Well, my reasoning for the lincoln h-pipe is ease of installation for me, i don't intend to take this to a mechanic this time so i want what's easiest for me to do in my friends garage. I read all the exhaust stuff on coolcats already and decided that this was it. Now for the headers I kept the HP equation in mind, and with a H.O. conversion no-where near a financial possibility for me the lincoln headers were the better choice, since my engine is stock. Oh, and due to emissions I need the cats, which is why i'm looking for any indication that the high flow cat may still exist somewhere.
Got lucky on the old board (an oxymoron I know). Found the post I mentioned.
Originally posted by MasterBlaster:
"Yes, knowing you can always walk in and order a "standard" part (even if it's not designed for your car) can be handy. How about Chevy parts? The 83-88 Monte Carlo SS had some nice looooooong shiny pipes out back! After all, a pipe's a pipe."
Kinda vague, but a start in a direction!
Hmmm, I'm thinking I got lucky because the installation of my aftermarket, summit brand at taht, H-pipe went seamlessly. I've heard of people having a hard time though. So aftermarket vs OEM for H-pipe is up to you. Looking at prices for new H-pipes with cat convertors now I guess that $250 doesn't seem that high.
I see now that the headers on the MkVii are listed for the Mustang too. If you don't mind getting used ones and maybe putting some new studs in, I highly reccommend checking for them on eBay or the For Sale section of some Mustang message boards. For $150 you could have aftermarket headers (even though that's not what you're looking for).
I also noticed that the Lincoln H-pipe has only 2 cats instead of 4... wise choice in favor of exhaust flow.
I mentioned the Monte pipes because of other posts saying to use Mustang too-short pipes, then have them cut and extensions welded in, or go all custom-bent, which could cost a lot of $$$.
I haven't actually tried them, so I have no idea if they'd work, just that they're already long and straight and shiny, just like what all that work and/or money is trying to accomplish.
stay away from a stock LIncoln h-pipe, they get down to about 1 1/4" in some places and flow terrible. On the Mark VIIs I've had the h-pipe was always the second thing to go after the air silencer.
You could probably find, again, a used Stock Mustang H-pipe on eBay or some Mustang forums.
Anyone else able to verify/concur with this? If so is anyone aware if the high flow cat system I mentioned still exists? I've looked through JC Whitney's site and haven't found anything on it.
I tried finding one at Summit Racing but I was unable to. I'm sure they're avaliable. There are tons of emissions legal Mustangs making good power, so they have to exist.
Uhhh, Im running an 87 Lincoln LSC h-pipe and it works great for me. I gutted the cats and it fits up nice to my mustang Dynomax catback and 1 5/8 shorty headers. I had to get the catback slightly custom bend a little longer and had 3in tips welded on, the ler shop did that in no time. The H-pipe looks nice, no 1 1/4 spots, not sure what he's talking about. :dunno: Ive gone 13.4s NA and 12.1s spray in the 1/4 mile with stock HO shortblock, Windsor jr heads, explorer intake, and the aforementioned exhaust.
I too ran a H pipe from a LSC('86), and mine wasn't even gutted. Also had a stock 5.0 Stang ler on one side and the stock Turbo Coupe ler on the other. Went a best of 13.56@101.3, wasn't spraying back then.
ok what about the 2 down pipes on the crown vic? with the cats already on them. would they actually fit? and would they be better hp wise? cuz they look like they would fit on the 5.0.
So 2 for, 1 against. Any more takers for either side?
I have used an off road H off a mustang and I am currently using a stock 91 lincoln mark VII H pipe with gutted cats and 30 series flowmasters. Also using the factory headers off the lincoln on the car. :evilgrin:
Up to 3 ! I found an actual photo of the h-pipe and intergrated it into the previous photo for reference purposes. Also did a lil' bit of leg work on the crown vic idea (god bless firefox's tabbed browsing and cable modems!!). In comparison to lengths the crown vic is longer than our cars, so pipe's and such ought to work. Also they did put 5.0's into those cars, so i think the question revolves around the routing of piping and such and mounting points. Anywho here's the revised pic:
http://www.foxtbirdcougarforums.com/attachment.php?attachmentid=151&stc=1
Exhaust_Setup.jpg
Well, I've got a Walker 15606 on mine, which is apparently the same as a 50500?
My dad has a 91 crownvic station wagon with the 5.0
If you need a pic of the exhaust I could get one.
I'm thinking that the Crown Vic ones are different. I could look at mine, but it's tough to tell with it on the car. I'm thinking they'd be spread out too wide. Plus, they're designed for manifolds, not headers.
That would prolly help for visualization sakes, though I didn't check on the length of the station wagon version of the crown vic. But I guess as long as it's a dual exhaust setup go for it. And masterblaster, what model mustang did you bring up to get that pic? That's a walker exhaust diag. right, I couldn't find that on there page, and i couldn't find the 15606 model just the 50500 one. Is yours a high flow, if so was it only made for certain years?
I have the bbk mustang h-pipe. no cats. with bbk headers. it all fits perfect. then i used the flow master American thunder kit for the mustang. all i had to do is weld in some pipe into the tail pipe. sanded the weld. looks good. all parts are for i think the 1985-1993 stang. It all bolted up perfect. the h-pipe was a pain to bolt up. but other then that it all went well.
:barf:
Only thing is, this guy has to have Cats.
good point. the location of the cats on the stang pipe if i am not mistaking is directly next to the trans. on my set up there is plenty of room on the left and the right. yo could prob gust order it with cats. but i dont have a clue because i have never ordered it.
:barf:
Pretty much any Mustang will do.
I used my pic's title (Mustang_86-88_all_ex_GT_pre-0588) to search on Walker's site, and their current pic is exactly the same EXCEPT all 15606 references are gone. I assume they made a couple of tweaks to create the "new" version, then used up all the "old" stock (likely at a discount) then removed the refs. Maybe rotated the O2 bung 1/16", redesigned the heat shields to fall off sooner, or something like that.
So i talked to my mechanic today and asked him about the Monte Carlo tailpipe theory. According to him the bends for the pipes are propriatary and would most likely not work. I personally am skeptical and intend to dig a bit deeper into the idea. I think my next step is going to entail a trip to a parts store and see if they have a pipe each from a mustang and monte carlo that i could use to do a comparison. I'll either do that tonight or tommorow and post what i find out afterwards.
I don't know if this helps but I have a 1989 Crown Victoria that I recently transplanted my Cougar's 5.0 SO, manifolds, and y pipe into. I only did this because the exhaust ont the LTD was rotted out(smog tubes and cats). The y pipe is good on the sides of the transmission bellhousing and starter but dips down way towards the ground after the cat, where it would bolt up to the second y pipe before the lers.
I would think the true dual cat pipes from the Crown Victoria would have clearance problems with our floor pans or "frame" rails.
Well found a couple pics of Monte tailpipes for debate. Personally I think they look a bit close, but it's been a while since i've seen mine so let the debate fun begin.
http://www.foxtbirdcougarforums.com/attachment.php?attachmentid=181&stc=1
tailpipes.JPG
bump?
Still looking for input, would like to see this followed through! (so others can use as reference late since search works!)!
Looks like it may work except for the bend on the right pipe ad the end. The pipes on my car are straigh on both sides.
On my car the passenger side tailpipe is bent just like the monte carlo pipe in the above pic and the drivers side is straight also like the monte carlo pipe.
edit: make that the pic on page 3
Were your pipes custom made? Mine are off a mustang.
Mine are stock 88 Cougar tailpipes. I think the bend on the passenger side is to match the side of the gas tank. :dunno: If you look at the drivers side of the tank it is straight. But the passenger side of the gas tank is a different shape.
There is the differance mine is 2.5 in mustnag tail pipes completely straight. But this shows either will work. :)
So did anyone test the Monte Carlo tailpipes yet? :confused:
well i was willing to untill the wonderful oil pan issue came up, so for me the exhaust is on hold for a while
Mines getting pretty bad too. I lose 2-3 quarts every 3000 miles.
Here's a hint: If you can get ahold of an engine hoist do so, you won't regret it.
So it's been a good long while since i've posted on this thread, but i've finally gotten back into hunt mode for pieces parts. I was looking around for info on that elusive high flow catalytic convertor for the Lincoln Mark VII. I'm curious to know if anyone knows the name of the company that produced this part. I searched coolcats.net's tech section only to find that the info pertaining to using the Lincoln setup had been edited out :dunno: . So if anyone has any info they can share on this i'd appreciate it!
Here's what Eric said way back when his site had a yellow background:
Walker still lists the stock parts:
(http://www.walkerexhaust.com/images/coupons/0895.gif)
That part I remembered, which is why I posed the question, what was the name of the company that produced it? I've looked on JC Whitneys site before and came up empty handed. I'm just figuring that there may be a snowballs chance that the company is still around and possibly producing this part, or there might be a distribution company with NOS lying around. Keep in mind this is a shot in dark, but i'm willing to do the leg work regardless.
Well, after digging around for about an hour I dug this little nugget of joy out of the internets cold dead hands.
http://www.fulllineexhaust.com/Catalogs/data/4179.html
I don't necessarily think it's the high flow cat system i've been hunting for, but it is definatly an alternative to the Walker Exhaust part at the very least. Only prob is I think that Catco Converters may have gone outta business :dunno: . I found 2 different links that should have put me directly at their site, but got domain underconstruction pages instead. Anyways I think it's kind odd that they list this part as a direct fit component for the 87-88 T-bird. Last I recall you have to change the headers to make it work. Either way, finding this just might be progress!
I dont know why u are trying to upgrade using OEM junk.
I had a shop do my Exhaust for me and i ended up with Hi-flo cats flows out back and all 2.1/2 inch tubing from my headers to my 3 inch tips out back.
3 years and the Exhaust is still like new
Hmmm, lets see, i'm trying to work with somewhat limited resources, restrictions courtesy the epa, and desire to do it myself with out shelling out a fortune to someone else. I basically don't want the "easy " way out. Read this entire thread, especially my first post. Maybe you'll understand, and besides, even OEM "junk" can be modified to improve performance.
P.S. this is not an insult or smart a** remark, merely an explaination.
cost me 600 CAN for hi-fow cats and 40sers flowmaster and the install.
No clamps and everything is welded so no leaks,
How much are u spending to do this?
ya dude, i can understand the limitations with this project, but you should really consider the mustang h-pipe with cats. $250 is not bad
and there not that hard to install. I't would be well worth it. I have a
h-pipe on my 'bird with no cats at all (no emissions testing, well not yet any ways) and super 40's to side pipes with 3" tips. get the stock mustang headers as well. Heck, I'll have a set I could sell ya' soon to make way for BBK equal length shorties...
This is not the help/info I am looking for, it's apparent that most people are
NOT understanding what I am trying to accomplish. Please. please, read the entire thread before you post about it. I know that I "can" get mustang h-pipe, I realize that. I am simply looking at doing something different than the norm.
Maybe that h-pipe is for stock manifolds :dunno:
That's what I was thinking, but I know I read that the bird/cougar manifolds need to be changed to the Mark VII ones in order for it to work. I'm just wondering if it's possible that maybe the 87-88 birds may already have the appropriate manifolds already installed. It's prolly a long shot but maybe a possibility.
No thunderbird or cougar was ever equipped with headers. Ever. Looking at the H-pipe I can't tell, but maybe it attaches to stock manifolds.
As far as I know the mark vii's all came with the Mustang shorty headers, so they would be different than the cast manifolds the Tbirds came with. :)
I looked at that last H-pipe that was posted and it does, indeed look different from a standard shorty header H-pipe. This may be the piece they used when the 88 cars got pseudo dual exhaust, maybe not. In any case, it's worth investigating to find out if it fits stock manifolds.
No the 88 didn't have an h-pipe, just a y-pipe and a goofy little pipe behind the convertor to convert to "dual" exhaust.
My bad, fixed that up, I keep switching between the 2 for some reason. As for the 88 model that yes is a Ypipe to Ypipe setup. Which I unfortunately have now. Both lincoln h-pipes I have found have pretty much been just that, h-pipes. I need to hunt down an older JC Whitney catalog or something and see if I can find that part.
Here's a diagram of the stock mark vii, doesn't really show much. :dunno:
Yeah, that's where I spec'd my original setup I devised from. Well just the converter. If it comes down to it I may end up with that particular piece. But hopefully I can get my hands on the highflow version.
I'm just wondering if you want hi-flow converters on an h-pipe, why not just get a Mustang one?? :dunno:
*Sigh*
The big reason for my not just breaking down and buying one is ease of installation to me. The mustang pipe is shorter that the mark one which would put me in a situation where i'm looking for longer intermediate pipes or coupling a couple of pipes together. With the lincoln pipe, i'd actually have to shorten my intermediate (from what I understand). This would make easier on me cause i'm more willing to measure 3 or 4 or more times and cut once instead of tacking on and adding unnecessary welds or s or clamps. It might seem like a backwards way of thinking but it makes sense to me. Ultimately i'd only be left withdeal with the tail pipes, which i'm still out to recess in regards to figuring out what to do with those.
Oh ok, I know when I had my '86 all I had to lenghten was the tailpipes. Somebody on here said they have Mac flow tubes, and they were longer. The difference in the middle is not very much, the biggest difference is the tailpipes, about 10" . :)
While the mustang pipe may be shorter than the mark one, with the addition of flowtubes from MAC, you'll need to do no additional lengthening. Even though I used an off-road H pipe on my car, it's the same length, and that, combined with those flowtubes put the end of the pipe that goes into the lers longer than I actually needed it. To get tails installed I'll probably have to have those pieces from MAC cut down some. I'm not sure if you want to use headers or stock manifolds, but the above is done with headers.
If I understand you right you want... Cheap, Emissions Legal dual exhaust that can be installed at home. I'd reccommend my setup (and have earlier in this thread) but 1.) it's not emissions legal and 2.) there are no stock tailpipes to fit, I'll need to have some made.
Thank you Thank you Thank you Thank you!!!! :bowdown: :bowdown:
*sniff sniff*. That's exactly what i'm doing, the only deviations are that, i'm sticking with a stock SO 5.0 engine, and some of the parts are not terribly cheap. I do plan to put "headers" (did I get the context right this time?) on, so between those and the converter pipe it pushes the price up some. If I didn't live where there was any epa testing i'd in all likelyhood go your route (and possibly recruit ya to help me!). But alas I enjoy where I live and am willing to sacarfice and adapt as necessary. I'll look into the MAC flow tubes setup, tho i'm thinking that to get a high flow catalytic mustang h-pipe may be more costly than the stocker mark pipe. Which in all honesty I could just bash out either 2 or all 4 cats and still look legal. But i'd rather be safe than sorry. Besides I have a need to compensate for a few of the engine mods i'm brewing up
Well were i live we have strict emissions testing and my setup passes.
I have always seen it be cheaper to make all the Exhaust then to buy OEM stuff
pre-made and u end up with a better fit. I know what your trying to do and thats one way of doing things but if money is tight i would look into all other ways of going.
What are the prices like were live?
nirvanagod,
What did you end up doing and how did it work out?
As much as i've tried, with everything else that's wrong with the car at the moment, i've been focusing on getting those "other" things caught up. Right now i've got suspension and engine work to take care first and foremost, if I get all that settled then I may go back and redo the exhaust. Keep in mind the key word is "may", as the car is showing signs of it's life in ohio. Also in parts alone, this project will run between $500-$700, and with a redone 88' style faux dual exhaust it might be less likely.
Ok, thanks for posting so quick. I think I'm going to try this Catco H-pipe:
Summit:
http://store.summitracing.com/default.asp?target=partdetail.asp&autofilter=1&Ntt=4179&N=115&part=CTO%2D4179&autoview=sku&Ntk=KeywordSearch
The place you found:
http://www.fulllineexhaust.com/Catalogs/data/4179.html
I called this place and the guy was pretty helpful. He said the 4166 and the 4179 had the same ends where it hooks up to the headers so I am hoping both of these parts will hook up to the Ford factory headers because that is what I have.
I would ask what "headers" do you have on your car? Are they the stock cougar/t-bird manifolds or mustang/mark vII headers?
Cool it should slide in without a problem. Also , you may want to look at the Walker Exhaust offering for the Lincoln h-pipe. I think it's like 4 bucks more at Advance Auto Parts, so you'd save money on shipping and if goes bad in 5 years you can just take it back to a local store. Oh, if you're interested in upgrading to an aftermarket header, Dynomax sell one specific to the Mark VII setup. Completely optional but I figured i'd throw that out there. If you go with the Catco model get some pics/measurements of it, and perhaps an opinion on how you like it!
I'm glad you said that. I checked their web site and sure enough, they have it listed for $212 including shipping to my door!!! :banana:
Of course, in keeping with Cougar tradition, this part is not available in any of their stores or warehouses. :wtf:
Summit also does not have the Catco part they show on their site but claims they can get it from the manufacturer in two weeks then send it to my door. We've had people order Suspension Techniques just to be placed on "backorder" indefinitely. I wonder if the same is possible here. The other catch? That $208 part has a $75 shipping fee with it. :shoothead
Advance Auto should be able order a part like that and have it for pick up at the local store, pressuming you have one around. And I know what you mean about summit, though i've eventually gotten the items i've ordered. Then again I have the advantage of being a few minutes away from the retail store and can have stuff delivered there instead of paying for shipping.
Well, I went to Advance today to see about ordering it. They said they would have to order it directly from Walker and remember that price on their site? Well, it's off by $87. That part is near $300. Sooo, now I am back to choosing which one to go with, the Catco or Walker. The Catco brand leads me to believe it is a "high-flow" converter. I put a Catco on my wife's Integra but I also changed the rest of the exhaust over to HKS so there is no way for me to tell how well the cat works. The picture of the Catco H-pipe looks like the pipe goes at a straight line from the cat to the upward bend while the Walker looks like it has two places where it steps out leading me to believe it may fit better around the tranny. The thing is, Walker doesn't advertise "high flow" and I can't return it. I got the impression I could return the Summit one.
You can guaran--tee I will post pics and info on the fitment of whatever I get.
I had a Catco H-pipe put on my 87 sport, and the fitment was lousy. It hit the back k-member mount on p-side, and it hit the aod shift lever on side of tranny, and the tranny x-member mount on d-side frame. Don't know how much of an improvement it made, cause I had also added Heddman shorties, an flowmasters at the same time.
After some "gentle persuassion", it eventually fit though.
This is good information to know, thanks for posting it.
I've been lurking around some Mark 7 places and those guys seem to generally accept that putting the 2.25 or 2.5" dual exhaust on a non-HO car that came with the factory y-pipe can rob the car of torque, hp, and gas mileage. :dunno:
A useful tidbit some might like:
http://www.lincolnvscadillac.com/showpost.php?p=107412&postcount=5
That's why I was looking at the Walker part, as it looks to have 4 cats on it v.s. the possible 2 on the catco. I feel that the extra 2 cats would keep the back pressure up a bit. As for the Advance Auto situation, that doesn't seem right at all. It seems like you were getting the run around.
Ok, I ordered the Walker 50501 H-pipe this past Sunday so it will probably be here sometime during the week of December 11th. The diagram looks like it only has two cats but hopefully, I'll have the real thing soon so I can give a report.
Still fricken waiting... :mad:
Those packals never called me and said it was in. I didn't call because they said they would call me but they didn't. I called them today and they were like, "yeah, it's here."
So I got the Walker H-pipe today meant for the 1988 Mark 7 LSC. My digital is a piece of Olympus so I will I have to borrow my neighbor's to take a picture.
It has two cats and it does NOT have mandrel bends.
$222.88
I noticed that this time around too. The Mustang version I got back in 97 did , but this year's was just "normal" seamed piping with accordion bends. Either they (Walker) are getting cheap, or the cats are getting so expensive they had to cut costs to keep the total price down, or they outsourced and gave a contract to the lowest bidder. :yuck:
Looks like the Walker Mustang part (50500) is $400.00 at Advance. With taxes and all, that's almost twice the cost of the Mark 7 LSC H-pipe that I got.
BTW, my LSC H-pipe is getting installed as I type this. No clearance issues :banana:
Why did you specifically want the H pipe? I had a full 2.25 dual exhaust custom bent for my Bird with no H pipe and it cost me $300 and they used aluminized pipe. The car sounds really good not too lound and not too soft. And just so everyone knows if you don't have a crossover it dosen't sound like 2 4 bangers next to each other:flip:
Do those Monte tailpipes actually fit?
I used Mustang pipes on mine (2.5" mandrel bent) and put extensions on the ends of them, with some stainless tips. I think it looks pretty decent. I originaly painted the pipes silver so they wouldn't look rusty after awhile, but now they're getting dirty so I may end up just painting them flat black or something (the visible parts at least)
I wanted a bolt-on solution for a stock 5.0L Cougar without being faced with clearance issues. I was also concerned about freeing up too much backpressure. Additionally, I wanted this solution to eliminate the obnoxious gas odor and stay emissions-legal.
The Walker Mark 7 LSC H-pipe (http://www.partsamerica.com/ProductDetail.aspx?mfrcode=WAL&mfrpartnumber=50501) does most of that for me and the part only cost $223 total with shipping and taxes at Advance Auto Parts.
MasterBlaster, how did your installation go? What other parts complete your exhaust system?
I am curious if anyone else has installed the Walker H-pipe (http://www.partsamerica.com/ProductDetail.aspx?mfrcode=WAL&mfrpartnumber=50500) intended for the Mustang GT.
I noticed right away that my exhaust note now sounds smoother than it did when I had the Mustang factory H-pipe. Also, three out of the four catalytic converters on the Mustang H-pipe I had were hollowed out. The gas smell seems to be gone so those worthless cats must have been the reason. Now, I wonder if I could pass emissions. I got a waiver but I'm curious if it could legitimately pass now with the new cats.
FYI: the rest of my exhaust includes factory Mustang headers, and the Flowmaster 50-series dual exhaust kit for the 87-93 Mustang LX.
I am going to have to borrow my neighbor's digital camera to get pictures so I can post them here.
I went with the Walker part for the Mark 7 LSC because someone posted that they had the Catco and fitment was lousy. Also, the Walker Mark 7 part from Advance was the least expensive out of all the other options. The Walker Mustang part cost over $400 and I was concerned about fitment around the floor shift AOD. The Mark 7 Walker H-pipe seems to give a tad more room around the AOD than my Mustang factory H-pipe did.
The non-bolt-on aspects are:
-the Mark 7 H-pipe is shorter than the Mustang one so longer intermediate pipes had to be made
-the Mark 7 pipe has that little pipe in the middle that connects to a hose that goes back toward the engine. The Mustang one has it on the side which is easier to work with.
So you got a Walker h-pipe that has new cats in it for $223.
Let me know how your emissions goes because if it works for you, I might do that too.
Is it 2.25 or 2.5 diameter?
It's whatever the stock Mark 7 LSC is so I am thinking 2.25.
Do they do "courtesy checks?" I am not due for any emissions now because I got a waiver but I want to know what the effect of this new part has on my pollutants measurements.
*EDIT*
Two years
I don't think they do courtesy checks. How long is your waiver for? Did you get a 2 year or is this just the 1 month thing?
That should actually have been the reverse, I believe that TurboCoupe 50 has even posted pictures to support that theory.
Apart from the column-shift and O2 sensor interference, it's okay, but the system hangs a little low with the rear s almost touching the floor brace for the seat mount bolts (rear). If I had any ambition at all, I could probably tweak/cut/bend the tubes to make it fit better, but... ehh.
Stock Mustang shorties, 50500 now, intermediate (flow) pipes 42796 + 42795 the first time, 42796 + 42835 2nd and 3rd times, stock 5.0 or TC lers (py sound from both), stock tailpipes (+ pipe reducers depending on s used). I didn't feel like experimenting with different brands/styles, as this is my only car, and when they rust out, I want to know the parts I order WILL fit with what's there now.
The search function should show several.
Mine passes fine. Surprises the testers, since it looks like such a piece of otherwise. I don't even bother doing any "tune up" stuff before testing. Of course, I still have all the original smog parts.
Well, I got my camera back from Olympus. They repaired it for free even though I've had it for almost two years because there was some defective part.
Anyway, my point is that I will be getting under After soon to take some pictures for everyone of my new Walker "1988 Mark 7 LSC" H-pipe.
Also, my wife made the comment this past weekend that she noticed After seems to have more power. I agreed. That's saying something if my wife noticed it. I guess the increased backpressure with my new pipe helped over the old one with blown out cats.