[WARP TEN]

Originally Posted by emorse

HI, New member with a 1991 ZR-1, 15,000 miles. Considering upgrading exhaust system (maybe just axle back change out). Want a nice Corvette sound but not too loud. Seeking suggestions on recommended providers, ie. Borla, Flowmaster, etc. Thanks.

Lots of posts here and on other Corvette forums; the search function is your friend. Having said that, the only real bugaboo with aftermarket exhaust systems is the presence or absence of resonance or "drone". I recommend leaving the cats in place if you want a slightly quieter sound (and a car that doesn't smell on startup); it sounds like what you are seeking is a cat back system anyway so that should not be an issue. I did most of my exhaust system research a long time ago and I am certain the technology to reduce drone has improve a great deal by now. I had Corsas on both my ZR-1s for many years after trying several others. I really liked the sound and at the time besides the stock exhaust they were the best at eliminating resonance, but I understand several others now also do a good job at that. On my '95 I finally went back to a stock exhaust system and added QTP exhaust cutouts just in front of the mufflers (Marc Haibeck did the work) thereby preserving my spare tire carrier. Allowed me to have a stock-quiet system when I wanted it and anything up to wide open pipes at other times. I normally left the cutouts about one third open for a good sound. Several posts on this here and elsewhere. Also there are probably some good used systems out there that could be shipped since they break down into component pieces. Keep an eye on the parts for sale sections of the forums. The car wil sound much better with a louder exhaust; it is just a matter of how loud you want it and do you want it that way all the time. Good luck with your ZR-1. --Bob