Muffler recommendations?
Thread Starter
Drifting
Joined: Apr 2001
Posts: 1,926
Likes: 279
From: Portugal
Muffler recommendations?
I am rebuilding the 427. One goal is to end up maybe taming it a little so I feel like I can drive it without rattling the neighbors' windows at 6am for one thing. But, I don't want to spend a huge amount redoing my entire exhaust just to accomplish that. So, if I change mufflers they must fit where mine are now. I have Flowmaster 50-series 3-chamber mufflers now. Here's a page with some pictures (unfortunately the mufflers are not quite shown):
http://diabolicalperformance.com/Dia...7exhaust3.html
I want the loudness to come way down without sacrificing anymore performance than I have to.
Any recommendations?
http://diabolicalperformance.com/Dia...7exhaust3.html
I want the loudness to come way down without sacrificing anymore performance than I have to.
Any recommendations?
CF Community Team
Joined: Oct 2004
Posts: 19,363
Likes: 5,243
From: Cape Cod, Mass.
2025 C6 of the Year Finalist - Unmodified
2025 C8 Z06/7/E-Ray of the Year Finalist - Unmodified
2023 C3 of the Year Finalist - Unmodified
2021 C8 of the Year Finalist Unmodified
2020 Corvette of the Year Finalist (performance mods)
2019 C1 of Year Winner (performance mods)
2017 Corvette of the Year Finalist
2016 C2 of Year
2015 C3 of Year Finalist
DYnomax makes a great sounding, great flowing set of mufflers. Low on resonance. Nice sound.
Le Mans Master
Joined: Jun 2006
Posts: 5,642
Likes: 5
From: One day you're a Comet...the next day you're dust... Arkansas
Burning Brakes
Joined: Nov 2004
Posts: 781
Likes: 0
You will want 3" pipes (at least between the headers and X-pipe) and a pair of mufflers that flow over 500 cfm EACH (closer to 600 cfm if possible). This will insure that you are not restricting power. There is a formula/ratio that supports this theory, that I do not have handy this moment, but I remember the muffler's cfm requirement because I needed similar exhaust for my old C4. I believe Dynomax and Magnaflow make good choices with this kind of flow, and Flowmaster should have one but will probably be a little on the noisey side. Muffler shops may or may not have all the technical data, so you may want to contact these manufacturers and get the CFM for particular models/PNs straight from them.
You will have to put up with a somewhat 'loud' exhaust if you don't want to loose any of your 500+plus HP in the upper RPMs.
You will have to put up with a somewhat 'loud' exhaust if you don't want to loose any of your 500+plus HP in the upper RPMs.
