quiet single inlet/outlet muffler

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Oct 1, 2005 | 09:42 AM

Dialed_In

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From: MD

Car: '88 IROC-Z medium orange metallic

Engine: L98

Transmission: 700R4

Axle/Gears: 3.27

quiet single inlet/outlet muffler

I'm looking for a free flowing QUIET single offset inlet single outlet muffler. Trying to hide the cam lope

I'm not big on the crossflow mufflers we all know they don't flow well. I've got an Dynomax Ultra Flow that I'm gonna hang on there today and see how it sounds. Anyone have other suggestions? No Flowmaster or Spintech.

Oct 1, 2005 | 11:43 AM

jimp2001

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Joined: Feb 2004

Posts: 860

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From: Albany, NY Area

Car: Red on Red 89 RS

Engine: LO3 305 TBI

Transmission: TH-700R4

Axle/Gears: 10-bolt / 2.73

Theres a dynomax line thats as quiet as stock... I bought a 2.5" catback for my v6.... its was like 170-180 from jegs or summit, i dont remmeber.

Oct 1, 2005 | 11:50 AM

1989GTATransAm

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From: Cypress, California

Car: 1989 GTA

Engine: 369 TPI

Transmission: 4L60E

Axle/Gears: 3.70 Nine Bolt

I would look into the biggest Dynomax Ultra-Flow or Magnaflow muffler you can fit under your car. I'm with you on quiet and high flow. Look into something along the lines of a 5x11 oval around 20 or so inches wide. Specification will vary by manufacturor.

I'm going with a Mufflex 3 1/2 inch cat-back and a Magnaflow 12909 muffler. Waiting on the muffler to be built.

Last edited by 1989GTATransAm; Oct 1, 2005 at 11:52 AM.