Dyno chart needed: mid pipe vs cat backs, anyone help??

[BlairSpeed]

Im in the market for an exhaust but I dont want anything raspy or too loud. Im not sure weather to just add a bigger mid pipe or go for the full exahust. Anyone with a dyno chart of mid pipe vs. full cat back, please post!

THanks

[Tenacious G]

the consensus here is the most restrictive part of the OEM exhaust system is the midpipe. the stock muffler seems to flow fine.

while both a cat-back exhaust or midpipe replace cures flow problems, the full cat-back also gives you a louder exhaust. i have the comptech cat-back (otherwise, pretty much stock), and will dyno as soon as i get a chance. i haven't seen a dyno with just a midpipe, however.

if you're worried about noise, the midpipe may be the best choice for you.

[BlairSpeed]

thanks Tenacious, I am worried about sound but I also dont want to sacrifice any performance. i think a mid pipe is for me!

[kelphead]

I dynoed my car with a 2.5" midpipe, stock muffler and DC sport headers and had 146.7HP to the wheels. Nice exhaust tone with change of midpipe. Go for the midpipe, you will not be disappointed

[Quicksilver]

A Comptech cat-back netted me maginal power across the entire powerband (1.3hp, 1.5tq) vs. a crush bent 2 1/4" midpipe. The Comptech was noticibly louder and quite "boomy" at low rpms. But it did give a sporty exhaust note that the midpipe doesn't give. I'd posted the dyno chart before, but then Imagestation went flakey. Midpipe is the much better performance bang for the buck.

[BlairSpeed]

whats the deal with the resonator? When I go to the muffler shop asking for a mid pipe, do I have to say anything about it? Do i keep it in or take it out? thanks

[dpw41285]

the resonater is just there to quiet it down, if your leaving the stock muffler dont worry about it. You can take it out it has nothing do to with C A R B