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Old 06-25-2019, 04:14 AM   #13
itsnotanova
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Join Date: Jul 2013
Location: Bastrop, Tx
Posts: 2,643
The 986 muffler is restrictive as it uses tiny tubes internally. It's also a boat anchor at 33 lbs. I believe the Chinese muffler drone can be fixed by welding in a crossover pipe. I think someone on here did that. I built my own using pieces from a 987 muffler. Lost 16 lbs and flows much better. With aftermarket headers and no cats, it has just the right sound with no drone. The 987 muffler has the same internal size tubes as the 996 exhaust.
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