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Re: Droning exhaust.
This! From LockDoc, J-Pipes. I tried this on my 66 c10 it had a drone at about 1600 rpm at 55 mph. I couldn't stand to drive the truck. I took out my h-pipe and tried them there way before the mufflers. It took away all of the drone. Someday I will put the H-Pipe back in and try them after the mufflers and see what happens.
Last edited by lilredfifty; 06-10-2019 at 09:00 PM.
Reason: Mispelled words
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