Stock Exhaust Size
Stock Exhaust Size 
04-15-2010, 03:49 PM
#5
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Are you sure it's 2.75? I put a 3" in 2.5" out muffler on my car and the exhaust shop said the stock exhaust was 2.5 in 2.25 out. The muffler still fit fine with reducers but i bought that muffler based on the fact i had heard 2.75 in 2.5 out. they said they had to reduce it more than 1/4 inch.
04-15-2010, 05:16 PM
#6
did research over this yesterday, stock eshaust is 2.5 inches before the cat, 2.75 inches after the cat to the muffler (that's the intermediate or "I-pipe"), and after the muffler (tail pipes) are 2.25 inch from the factory.
However,
Some SLP optioned cars had 3 inch exhaust (option on some of the Camaro SS's)
Another note, many people use the 3 inch cutouts with factory exhaust. From what I've seen, read, and heard, it works well without any issues (my car has a 3 inch cutout on it
)
hope this helps
However,
Some SLP optioned cars had 3 inch exhaust (option on some of the Camaro SS's)
Another note, many people use the 3 inch cutouts with factory exhaust. From what I've seen, read, and heard, it works well without any issues (my car has a 3 inch cutout on it
)hope this helps
