Girodisc 2-Piece Rotors for BMW F8X M2/M3/M4 Select::Rear for Red Silver or Gold Calipers (A2-220) The factory under tray inner-most

The factory under tray inner-most layer is only slightly trimmed and the under tray reinstalled to keep the factory aero smooth and the oil pan protected

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nothing touches outside of a few bearings and it uses a controller to determine speed and output

(6) M8 Flat Washers (BB-369023-B)

• Fuel Pressire rises on a 1:1 ratio with boost

Girodisc 2-Piece Rotors for BMW F8X M2/M3/M4 Select::Rear for Red Silver or Gold Calipers (A2-220) The factory under tray inner-mostGirodisc 2 piece iron rotors for the BMW F80 M3, F82 F83 M4 and F87 M2 models. These iron rotors are available as a direct replacement for your factory iron rotors or to replace the costly carbon ceramics with a more affordable iron option. If you are replacing your factory carbon ceramic rotors with new iron rotors, you'll need to choose new brake pads designed for iron rotors. When you need to replace the rotor rings, they are available separately