Thread: Muffler replacement huge horsepower gains!
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Old 04-15-2009, 11:40 AM
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Join Date: May 2006
Location: Placerville, CA
Cobra Make, Engine: FFR Mk3, 482" FE, EFI
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Great thread! I'd love to hear more about the flutter. When exactly does it happen? Seems like it's heard any time the engine is losing revs - is that right? Is it a constant sort of slapping/flapping sound or is it more of a random popping?

I've read every muffler thread I can find because I'm about to build a set of sidepipes for my FFR. I want minimal power loss and noise is okay as long as it's not crazy. I'd been planning on the same sort of setup (except with merge collectors) that RedBarchetta has but now I'm wondering if that's the right thing to do...

Rob
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