Dual Exhaust

Topic: Dual Exhaust (Read 1579 times) previous topic - next topic

Dual Exhaust

April 20, 2018, 02:56:01 PM

I purchaced a 1987 Cougar 5.0L . It came with single Exhaust,..I want to put on duals...Anybody done this on your 87 88 Cougar.??

Dual Exhaust

Reply #1 – April 21, 2018, 09:27:17 AM

Throw some stock Fox Mustang headers on it, a Fox Mustang H Pipe, then have the rest added at the ler shop. The H-Pipe and headers are a simple bolt on, but the mid pipes and tail pipes are different from a Mustang.

Dual Exhaust

Reply #2 – April 21, 2018, 12:45:44 PM

+1... Stock mustang headers can be found cheap.

Dual Exhaust

Reply #3 – April 21, 2018, 05:15:54 PM

Or, if you're only interested in the look, you can get the 88 v8 cat-back, for what is essentially a single exhaust with 2 lers and tails.

Dual Exhaust

Reply #4 – April 21, 2018, 09:12:45 PM

Thanks......I want full duals....will see what I can find next week....

Dual Exhaust

Reply #5 – April 22, 2018, 06:19:30 PM

It bears mentioning that the HO headers and H-Pipe setup will require HO oxygen sensors, or 8 inch(?) extensions; as in that setup, the O2s are in the H-Pipe and not the manifolds/headers.

Dual Exhaust

Reply #6 – April 23, 2018, 03:29:35 PM

You can also lengthen the car's oxygen sensor harness (that's what I did). Be sure to solder the wires and not use a crimp connector.

DO NOT lengthen the oxygen sensor wires themselves. You'll ruin the oxygen sensor that way.

Dual Exhaust

Reply #7 – June 06, 2018, 10:41:06 AM

the o2 sensors need 600+ degrees to start making thier own millivolt signal,, how can they do that if they are so far down stream
?

is it really that hot on the hpipe?

Dual Exhaust

Reply #8 – June 06, 2018, 10:59:01 AM

Late 86 on the o2 sensors are heated. The 4.6 mustangs have six catalytic converters and pre and post o2 sensors, the post o2's are near the end of the h-pipe.