Thread: What is the difference between HFC and test pipe?
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Old 07-06-2010, 07:07 PM   #34 (permalink)
nolan1016
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Quote:
Originally Posted by Westwood View Post
12" are louder than 18" right? non resonated u talking about the tp's?

and sorry if my english is not perfect i went to french school... excusez moi pour mon anglais


yes 12" are louder then 18" but you can also go no resonators on the exhaust. Test pipes comes in resonated or non-resonated.
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