Hi

I was wondering how restrictive the stock exhaust on my 94 3.4L is? How much HP would my flowmaster cat-back add once i install it?

 

Don't neglect the y-pipe! It's a real piece of double wall workmanship - 2 1/2" od, 2 1/4" at the flanges. But inside of all of this is some not so pretty 2" tubing.

Changing the cat/back without doing the y-pipe will produce less than startling results!

 

a new catbak will make a difference I would also consider a cutout as well. Its cheap and fun.

 

The exhaust is HELLA restrictive. Defently get a cat-back for sure. If u want it to be even better...get a high flow cat, (or remove it all together if u have no emmisions) a cut-out and even headers if u get extreme about it

 

I think I might get a cut out behind the CC. Have much power would I gain if I did get headers, replaced the y-pipe, hi flow CC, and cat-back?