can someone explain the difference between a test pipe and a down pipe? +/-s appreciated.
03-06-2002, 11:44 AM
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Depends on the how you look at it.
Test-pipe: A straight pipe designed to replace the CAT (for off road use of course)
Downpipe: Connects CAT with flex section to rest of exhaust.
A Downpipe could in theory include the portion of pipe to eliminate the cat (test-pipe) in one piece .. These are commonly called Race downpipe.
Downpipe: Connects CAT with flex section to rest of exhaust.
A Downpipe could in theory include the portion of pipe to eliminate the cat (test-pipe) in one piece .. These are commonly called Race downpipe.
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