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2004 chevy trailblazer_ls
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Discussion Starter · #1 · (Edited)
Guys... need some assistance... My muffler created a new port for exhaust to escape and I'm thinking of replacing it with a muffler from my work... Pypes Exhaust. I just need to know the size of the pipe before and after the muffler. Before I start hacking away on the pipe, I want to confirm the sizes. When I measure the OD of the pipe, it measures 2.75". I haven't found a thread showing this answer. Thanks... Mike
 
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