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alright, got my truck back from the dealer complaint of weird vibration/rattle coming from exhaust when engine rev'd above 2k-----they supposedly took the exhaust apart and check my cats and they are fine-tightened up a bracket and i still have the vib/rattle its just slightly quieter now, so what do i do now???????????? i think im just going to spend the money on brand new primary cats and have my exhaust done custom.
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