Wilwood 170-14979 Big Brake Dynamic Mount Hat, Short Offset — BMW E46 M3

Wilwood 170-14979 Big Brake Dynamic Mount Hat – Short Offset

Genuine Wilwood aluminum rotor mounting hat, as used (2 per kit) in the 140-14980 FNSL4R big brake rear kit for the 2001-2006 BMW E46 M3. Precision-machined from billet aluminum with a black e-coat finish, the Dynamic Mount hat uses Wilwood’s T-Nut slot interface to secure the rotor while allowing it to float slightly for even thermal expansion and reduced rotor warp under heavy track use.

Specifications

Fits

• 2001–2006 BMW E46 M3, as used (qty 2) in Wilwood 140-14980 FNSL4R big brake rear kit, paired with 160-12961 / 160-12962 GT 48 rotors.

Important Notes

• Mounts with the 230-6656 hat bolt kit (12 bolts with T-nuts, sold separately, one kit services both hats).