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      10-19-2019, 08:23 PM   #29
zeyad.habeeb
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Drives: 435i GC
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Quote:
Originally Posted by alohasurftoad View Post
Quote:
Originally Posted by DL335D View Post
I pulled the clip on the stock exhaust, wired the flap open and the only change in sound that I noticed was on start up. Will I notice more of a change with the MPE? I don't like driving the car in sport or sport + due to it staying in a lower gear most of the time.
if you're in comfort most of the time, the flap is closed most of the time. i think the MPE will still be louder if the flap is open even if you're driving at a level where it would normally be closed. MPE(axle-back) is basically the mildest loudness upgrade of all the axle-backs, though.

it would have been better you got a REMUS or AWE cat-back instead, but since you already have the MPE i still say just fork out for the CG Precision DS-1 catted down pipe. it's not cheap but you'll get a decent performance bump in addition to the sound. shop around and check out the classifieds below. black friday will be coming up very fast as well.

https://f30.bimmerpost.com/forums/fo...play.php?f=451

also in the future you'll get better responses for N55 engine modifications in this sub-forum.

https://f30.bimmerpost.com/forums/fo...play.php?f=421
Don't you need to tune it after putting the down pipe ?