Got Corsa?

[Gunny]

This is NOT a thread about which exhaust is best, etc. but I do hope to learn more about Corsa exhaust systems.

A little background: I had Corsas on a stock 94 LT1 years ago and basically liked them a lot. My 90Z had Borlas on it when I bought it (also got the original stock system as well). Later I added SW headers and high flow cats and also picked up a stock LT4 system as well as a Corsa system for possible later use.

This past weekend I finally installed the Corsas without the cats (I need to shorten the Corsa front pipes and currently don't have access to an exhaust shop that can mod stainless). First impressions ... wow, these flow really well without any resonance and boy, are they really loud at WOT. Normal driving, louder than stock and maybe even louder than the Borlas but certainly not too loud, but when I hammered it, the loudness was incredible and not at all what I anticipated. I'm not saying I disliked it, but surprised at the outcome.

So here's the question to those of you with Corsa experience ... will adding the cats tone down or "tame" down the overall loudness somewhat? I suppose that I was a bit surprised that Corsas on the LT5 w/headers was louder than I anticipated, especially since I remembered a "quieter" sound on the LT1 (no headers).

And has anyone heard a stock system (late LT5 or LT4) on a Z with headers and cats? I'm assuming that it would be fairly quiet with no resonance, but would it be "too quiet"?

Is anyone with either headers/cats/Corsa or headers/cats/stock going to be at BG with their Z? I really would like to hear these setups in person, possibly even a ride.

Thanks for reading and even more, thanks for the responses that I hope I get in this thread. I'm fairly certain that I will either stay with the Corsas or possibly try fabbing the LT4 stock system up ... no resonance and quiet (but not too quiet) are my goals.

George Jones