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Definitely the HFC's; test pipes will sound as bad or worse. Options are to live with it, replace OEM cats, or get resonated test pipes/HFC's.
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#7 (permalink) |
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A True Z Fanatic
Join Date: May 2010
Location: nirvana
Posts: 6,394
Drives: 2023 NATM
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Definitely the HFC's; test pipes will sound as bad or worse.
Options are to live with it, replace OEM cats, or get resonated test pipes/HFC's.
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