Originally Posted by daxtor
$1600 plus installation is just too expensive for 20 HP gain.
Don't forget the 11% increase in torque (for 8 spd version) which would be felt by the driver !
There is also a new "exhaust silencer" which really is a new air filter that would change the exhaust sound to a burbling sound on deceleration. If you go to BMW's website, click on M Performance and Dynamics, you can hear the exhaust sound.
I think this modification would make the M Performance exhaust redundant.
Finally, the existing factory warranty remains in effect.
Since my previous Post #6 above, my dealer has been informed that the final MSRP and availability date have not yet been confirmed for the Canadian market. January 2013 seems like a good bet at this point. The pricing is likely to be somewhat flexible.