Just a heads up that while great on paper, there have not been good reviews of the 135i brakes on track. Apparently the calipers are prone to crack due to extreme heat.
In comparison, none of us who track on the stock E90/E92 brakes have had a problem.
You may have to budget a bbk upgrade sometime in the future!
Otherwise, your car looks great, and can't wait to hear more updates.
Originally Posted by Rotary Rocket
The 135 calipers are 6 piston. Changed to O ring to Stop Tech as well.