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, or F32 for example. This kit includes everything you need; from CNC milled 4130 steel adapter plates to custom grade 12.9 fasteners. For every detail, read our Tech Article HERE. Matches perfectly with our 370mm rear brake kits!
The calipers for this conversion come in two versions. The "370/380" marked calipers (noted via a casting mark on the back of the caliper) work with the M Adapters. If your calipers are painted, they are likely these calipers. The grey caliper version has "340" marked on the back and are from Non-M vehicles. All kits work with the dinner-plate 2-piece 380mm M2/M3/M4 rotors. These rotors are a great deal, offer a huge aftermarket rotor and pad selection to suit your driving.
As seen on "Vehicle Virals" video HERE
Install video can be found: HERE
Instruction documents can be found: HERE
Independent Install & Review: HERE
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.
As with everything we make, this kit is engineered (including FEA) and manufactured here in the USA. The adapter plates are CNC machined from heat treated steel and gold zinc coated. The custom hardware is made on the CNC lathe, sent to heat treatment, and then also zinc coated for protection and good looks.
The 4 Piston Brembo calipers are a lightweight aluminum 2-piece design with stainless steel pistons. They have been proven to perform flawlessly at the track, as shown by Robert Kubica HERE. The stock 135i 6-piston Brembo is notorious for having the ceramic pistons crack after only a few track sessions. The 335i has single piston slider-type calipers that often struggle when pushed. Even after you spend a bunch of money on stock caliper upgrades, the OEM brakes still have trouble constantly slowing down these extremely fast vehicles that often have double the original power...or more.
No matter what we did on our 135i, we could not stop the brakes from overheating and fading at the track. With this kit we added over 40mm of rotor while upgrading to an aluminum rotor hat which cools down dramatically faster.
