exhaust mods....

[87MNGN]

I was looking through Poston Enterprises online catalog, and I have chosen some items to purchase and I am wondering what hp gain should I expect:

3" downpipe
high-flow catalytic converter
high-flow crossover pipe
Hooker exhaust system

I think that should bring me to a pretty good hp boost, but I am wondering what numbers should I expect?

 

[Quick6'n'-K.C.]

you should gain at least 40 horses over the complete stock setup-

 

[J Banning]

What other mods do you have done to the car?

If you haven't done so yet, check out the recepie page at:
http://gnttype.org/techarea/recipes/recipepage.html

-Banning.

 

[tim87tr]

The exhaust mods will help your car even more when the boost is turned up. If you want to save some money, might want to check out Summit on the Hooker 2.5" price. That system comes with a test pipe to use, for off-road use , depending on emissions testing in your state. So the high flow cat may not be needed.

If you want to do the downpipe later, you can still run plenty fast on a stock setup. Not sure if the crossover is needed either.