4'' DP needs to quiet down ALOT!!

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Oct 28, 2014 | 10:43 AM

#21

67Firebird455

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From: Visalia, California

Quote:

Originally Posted by Photochop

My vote would be for a 4" downpipe, cutout, then a 4" to dual 3" flowmaster Y to split em out the back in stock muffler configurations - even 2.5" in/out mufflers. Maybe try and find a pair of corsa mufflers or similar - something with some case diameter to it and some packing to kill the noise for street driving. Flip the switch and have the 4" cutout dump under the car.

This is what I want to do if the bullets don't dampen the rasp enough. A 4" DP under the car will be entirely too loud for a DD, but should be okay for most weekend warriors.

Oct 28, 2014 | 03:42 PM

#22

yelo04goat

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From: San Diego/ from the 316

Im not adding all this miles of pipe. Thing is heavy enough as it is.. single turbo = single exhaust..

Getting out the back and with the muffler is the plan right now. Throw in a bullet one like that was posted will be in there soon too. Just to calm it down more

Oct 28, 2014 | 04:09 PM

#23

02SOMSS

Staging Lane

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From: Iowa

Quote:

Originally Posted by 67Firebird455

This is what I want to do if the bullets don't dampen the rasp enough. A 4" DP under the car will be entirely too loud for a DD, but should be okay for most weekend warriors.

Mine isn't bad until you stand on it. Then it will leave your ears ringing.
Running it out from under the car should make a huge difference.

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