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Old 09-26-2007, 02:18 PM
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Default Factory exhaust

I'm getting ready to order a cutout and just making sure that the factory exhaust on a 2000 Camaro is 2 1/2" right?
Old 09-26-2007, 04:17 PM
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3" I-pipe, 2.5" out the muffler on mine but I have seen some
smaller looking after-muffler pipe on Z/28s. Probably 2.5" on
the Y branches.
Old 09-26-2007, 07:48 PM
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3" cut out worked for me. It's slightly bigger than the I-pipe, but not by much. We had to expand the I pipe a little bit to make it easier to weld. I might have it backwards, though... I can't remember which was bigger at the moment..

But for sure the 3" cut out fit.

BTW, I put mine right before the rear axle, under the back passenger seat.
Old 09-27-2007, 12:00 PM
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Unless you have an SLP optional exhaust (dual dual or CME) your I pipe is 2.75"
Old 09-27-2007, 12:33 PM
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nutin like gettin 3 different answers,,




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