Quote:
Originally Posted by Bayerish Reisenden
Hello all,
I also installed the MPerformace muffler, the sound is very good compared to stock one specially at low and mid RPMs.
But I noticed that on highway there is a weird background sound (like a humming sound) specially when the engine is between 2000 and 2200 (it's exactly 130 or 140km/h in 8th gear...)
When I drive faster or if a stay between 130 and 140km/h and force the car on 7th gear (Manual mode) the sound gone.
Someone has the same "issue" ?
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That would be drone. Which part# exhaust do you have? (there are two different ones)