Thread: Will RHFC add rasp to my exhaust system?
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Old 09-11-2012, 09:50 PM   #5 (permalink)
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Quote:
Originally Posted by split View Post
RHFC is the only cat pipe that does not cause rasp. the rest do
well yes, because it is a cat and because it is also resonated...

that being said there was a forum member who has test pipes with a catback and got rasp, he modded his exhaust with helmholtz resonators and now gets a clean exhaust note.
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