What is the difference between HFC and test pipe?

Originally Posted by OhYeah THx for info I was wry the same thing... what about the sound??? Test pipes are going to be louder than HFCs. They will also be

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What is the difference between HFC and test pipe?

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07-04-2010, 10:03 AM

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m4a1mustang

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Quote:

Originally Posted by OhYeah

THx for info
I was wry the same thing... what about the sound???

Test pipes are going to be louder than HFCs. They will also be a good bit more raspy, and the well documented deceleration hiss will be more pronounced with test pipes.

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