Thread: exhaust
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Old 08-09-2014   #32
1990 quasar blue
 
Join Date: Feb 2004
Location: Ma
Posts: 403
Default Re: exhaust

Quote:
Originally Posted by KILLSHOTS View Post
The stock exhaust was designed to muffle sound, of course. But it was also tuned to eliminate the inherent resonance baked into our cars. It hits hard in the 1800ish RPM range and again in the 3400ish RPM range. The resonator was tuned to help part of it and the mufflers were tuned to help the other part of it. The exact details don't matter, but to answer your question somewhat succinctly, the Corsa system was designed in much the same way, except with much less restriction. What you have in the Corsa is a system that is somehow as effective at quelling resonance at all RPM as the stock system, but still causes virtually NO restriction. It is quiet at part-throttle but straight-pipe loud at full-throttle. Any exhaust can sound throaty or be "open" but in my opinion, the Corsa is brilliant because it just does everything right.
Thanks Chris. The reason I was wondering was because the guys running the NPP tips on a 3" system with X-pipe all have little to no resonance as long as that one tip on the mufflers stay closed.

Ed, it would seem that the 40 series would be the cheapest way to get more sound. I bellieve they're still aluminum so weight should be similar. Sorry I took this a little off topic.
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