So I have tried to get a definitive answer on this and there is still a lot of confusion.
Everytime I have read a thread that seems to provide confident info there is something to pop up and add doubt.
For our cars with the stick M sport brake kits, they have 340mm rotors to my understanding?
Now the common wisdom seems to have been that you need the M performance calipers to fit the 370mm rotors, but there have been a few posts that claim otherwise, and even turner seems to show otherwise.
https://www.2addicts.com/forums/show...1204501&page=3
And the turner site:
https://www.turnermotorsport.com/t-b...ke-differences
In Canada and Europe, the M Sport brake option (option code 2NH) came with blue Brembo calipers in the front and rear and larger rotors. This kit has the same specs as the M Performance accessory kit but with the blank rotor design and blue calipers instead of red, orange, or yellow. Officially the US did not get the blue calipers in our M Sport upgrade until the 2014 model year. All 2014 models (including F32 Coupe and F22 2-series) with the M Sport Brakes Upgrade (still called S2NHA and $650) used the same components as the rest of the world. These are the same brakes as what was standard on the M235i/iX.
Specs:
Front: Brembo 4-piston calipers, painted blue with an ///M logo; 370mm blank brake rotors
Rear: Brembo 2-piston calipers, painted blue with an ///M logo; 345mm blank brake rotors
Quote:
|
Since the M Sport shares the same specs as the M Performance, the parts are interchangeable. You can add M Performance dimpled/slotted rotors to an M Sport car and they will be a direct fit. They are also a little lighter than the standard blank design. Pads are also interchangeable among the calipers. The M Sport pads are more aggressive and give more bite and feel than the M Performance pads.
|
Further complicated by Turner having the M sport blanks as being 370x30mm
https://www.turnermotorsport.com/p-6...m-sport-s2nha/
So when you look at the M performance rotors:
https://www.turnermotorsport.com/p-3...2-f33-f34-f36/
I sent turner an email also for some clarification, but curious if someone has figured this out by now already, or has first hand experience.