'88 IROC 350 - 3" in or 2.5" in stock muffler???
11-04-2003, 07:25 PM
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'88 IROC 350 - 3" in or 2.5" in stock muffler???
Hey guys, quick question:
To replace a stock muffler, I want to know if the stock setup in my '88 Iroc 350 is a 3"in and dual 2.5" out or is it 2.5" in and dual 2.5" out?
I have seen both listed in magazines and such.
Thanks.
To replace a stock muffler, I want to know if the stock setup in my '88 Iroc 350 is a 3"in and dual 2.5" out or is it 2.5" in and dual 2.5" out?
I have seen both listed in magazines and such.
Thanks.
11-04-2003, 08:03 PM
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Car: 89 IrocZ/17 LS 1LE
Engine: 383/LGX
Transmission: 400/TR-3160
Axle/Gears: 3.08/3.27
I think its 2.5 in/out but I think I read that some came with a 3 in/2.5 out but im not sure either way a muffler shop should be able to weld it up for you
11-04-2003, 09:52 PM
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Car: 1987 Z28 Convertible
Engine: 305 TPI
Transmission: 5-speed
According to the 1987 MVMA (Motor Vehicles Manufacturing Association) Specifications Form for a Camaro, the stock intermediate pipe is 2.75" in diameter. The tailpipes are 2.25" in diameter. So go with the 3-inch inlet and 2.5-inch outlet muffler.
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