Stock exhaust size?
11-19-2009, 07:41 PM
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Stock exhaust size?
What is the Stock exhaust size on the 99SD? 3.5 or 4"?
11-19-2009, 09:11 PM
Join Date: Jun 2003
Location: Damon (South East Texas)
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Downpipe is 3" and goes to 3.5" after that where the flange bolts to it. Do you have a "cat" on yours?
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