toyvette81

i currently have dynomax super turbo mufflers on it and a high flow cat, i have read that most people take the cat off of this car.... will it really make that much difference? and has anyone cut a pipe and installed true duals on their vette? if so help me out

MsVetteMan

I just dropped my Cat the other day! Straight piped back to the existing 2 year old mufflers, and it made quite a difference. Smoothed out the engine, and added a little kick! It also opens you up for future mod's.....the more you can exhaust, the more you can put in! Translates to increased HP!!

toyvette81

did u have an old cat( my old one was tremendiousley clogged up) or did u drop a new or high flow cat?

MsVetteMan

I dropped the old cat........

toyvette81

is it duals all the way out or does it go into one then back out to 2 mufflers like stock set up? thanks

MsVetteMan

True duals.......no y's or single pipes......makes a big difference....

Pauld

That's what I have done, true duals are the way to go, they really make a major difference.

Ben Taylor

A new high flow cat will give you about the same performance as no cat. If you have any smog inspections where you live there is no way you will pass without a cat.

Ganey

See what many refer to as my Exhaust topic.
http://www.corvettefaq.com/c3/ganeyexhaust.htm

bob2169

dumb question here, but how would I know if my cat is bad or clog?

Master Ho

Obviously, you could remove and visually inspect it, or check the exhaust flow at the tailpipes with your hand. A bad cat will reduce airflow significantly.