Quote:
Originally Posted by M3SQRD
I e had two AA x-pipes - one with HFCs and one with no cats/stock cats. I’ve had zero vibration issues with/without cats. Definitely no change in vibration with/without stock cats. I don’t have the forward must exhaust support (removed and misplaced when akra x-pipe was installed) and still no strange vibrations. Only issue I’ve encountered was the HFCs rubbing on speed bumps. Also, have an Akra HFC x-pipe and have had no vibration issues with it too.
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What do you mean forward most support? The test pipe / catpipe supports? What muffler section when you had the aa x pipe?