M3/M4 Big Brake Adapter Kit

Product Details

Quit the guesswork—upgrade your stopping game. The Seems Legit Garage M3/M4 Big Brake Adapter Kit lets you equip your non-M BMW with authentic M3/M4 calipers and oversized rotors, delivering the kind of braking muscle BMW engineered for its track stars. Precision CNC-machined brackets ensure dead-on fitment, while high-grade hardware keeps everything secure when you stand on the brakes.
 

These adapter plate kits allow you to run the huge 380mm M2/M3/M4 front rotors on your Non-M BMW using any F-Series 4 Piston Brembo Caliper. This kit works for all E and F Series Non-M vehicles such as E82,E90, E89, or F32

Fitment Details:

M3/M4 Front Calipers: 34116799469 and 34116799470 & other color versions available

Non-M Grey Front Calipers: 34116865538 and 34116850931. Marked 340 in the casting on the back.

Rotors: 34112284810 and 34112284809

Wheel Requirements: Wheels must have a barrel of 17" or greater to clear this setup. Fits most 18" wheels.

Whether you’re after lap-time confidence or the aggressive presence of M brakes, this kit is your hassle-free bolt-on path to serious stopping authority.

Prop 65 Warning

Product Q&A

Lifetime Replacement