Help quieting down exhaust
Thread Starter
TECH Regular
Joined: Dec 2005
Posts: 437
Likes: 9
From: Indianapolis
Help quieting down exhaust Will the dynomax bullit or the spiral flow kill the rasp and crazy loud QTP, corsa, ORY combo I have going. I want to knock it down a good bit. Thanks
12 Second Club
Joined: Mar 2003
Posts: 334
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From: jonesville, MI
I installed the Moroso Spiral Flow tonight on mine...it cured the rasp with my setup. It's not as loud overall either. I just hope it is not too restrictive and robbing too much power. The dyno tune next week should tell me. The spiral flow has about a 1.5" straight through pipe and then an auger-like insert outside of that in the 4" casing.
I've also heard the Powerpack from EAD performance will cure rasp.
I've also heard the Powerpack from EAD performance will cure rasp.
Thread Starter
TECH Regular
Joined: Dec 2005
Posts: 437
Likes: 9
From: Indianapolis
So the spiral flow sounds like the way to go? I'm hoping it is the quieter option then the bullet dynomax. I don't care too much about the restriction in the flow it should be minimal whatever road I go. I'm probably not ever going to be making 800+ ponies so I can live with it 
Thread Starter
TECH Regular
Joined: Dec 2005
Posts: 437
Likes: 9
From: Indianapolis
Well the spiral is comming in a few days hopefully it takes that rasp and quiets down ALOT bc right now it sounds like a friggin race car. If it isn't quiet enough I'll save up and put 2 stainless ones after the muffler before the exhaust tips and see what happens but hopefully it doesn't come to that. Post up an update with a sound clip of before and after.
