Quote:
Originally Posted by ksoze
Not to talk you out of the exhaust, but I have found the stock M Performance exhaust to be perfect. I have both flaps open on all modes (via fuse pull) and it has enough growl to work for me with no drone. Dinan says their exhaust will give very little if any HP gain. The Stage 1 tune however is worth it.
As far as numbers, the only real world numbers other than Dinan's posted ones are from users in their documented 1/4 mile runs. The Stage 1 tune seems to cut 1/2 second off the 1/4 and likely close to 1/2 sec on 0-60. Dinan claims their stock and S1 dyno numbers were done on two machines including a Mustang dyno.
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Does the M Performance exhaust come only on true M cars? Is it the same as the M Performance exhaust sold as an accessory on ShopBMWUSA? Also is it controllable from the cockpit like that on my Z06? Thanks--Bob
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2019 540xi M Sport, Carbon Black/Cognac, 2014 328xi, 2016 Corvette Z06; Previous:2010 BMW 535xi M Sp, 2008 335xi, 1998 M3 Sedan,1980 528i, 1977 320i, 1976 2002