View Single Post
      05-28-2018, 08:38 PM   #5
docjrk
New Member
9
Rep
16
Posts

Drives: 2018 BMW 540i xdrive M-sport
Join Date: Feb 2018
Location: USA

iTrader: (0)

I've had my mppsk car now for almost 6 weeks and about 800 mixed drive miles. The exhaust was deeper toned initially compared to a standard exhaust but not as aggressive as i had expected. Some burbles on throttle lift and downshifts...however, after 500 miles, i think things loosen up and sound improves. Gets louder, a bit more "growl", and now that I'm pushing the car a bit more as i near the 1200mi break-in, above 3500-4k rpm, definitely sounds better. Had the wife take a spin so i could hear it better....lots of pops, bangs, and burbles now. Do a 2nd gear hard accel to 4500rpm and quick let off the throttle....you will hear what i think you want to hear.
Appreciate 0