just pulled the trigger on a set of ECS 20MM front and Rears , easier as it comes with bolts ready to rock .. will post up pictures when i install them .
Thanks for all the great info here fellas .
Coded, BMS S1 431whp/479wtq 93 Oct /Run Conditions 91*F
Options: Camera Pkg, Convinience Pkg, Driver asst, F&R Luxury Seating, Prem/Sound, Rear Entertainment, Sport Pkg, Massage rear seats, Ceramic Controls, Active Cruise, SmarthPhone Int., Night Vision, Head-UP Display, Sat, Leather Wrapped Dash&Doors.
(N54 E82 135i) JB4 ISO FBO, 434whp & 470wtq / Run Conditions 90.28 *F