AP Racing has introduced front and rear Big Brake System for the 2008-2010 BMW M3 (E9x). Available from the Brake Pros product division of Stillen, these new brake upgrades fit most 18″ and 19″ OE wheels. They are compatible with OE ABS, traction control, stability systems and factory brake master cylinder.
Front systems may be ordered with AP Racing’s newly updated 6-piston CP5555 calipers finished in black (AP7100), red (AP7100R) — or — limited-edition Comp Gray (AP7100G). For optimum mechanical and thermal balance, complimentary rear systems are advised. The rear systems are supplied with AP Racing’s new CP5306 4-piston calipers in matching colors (AP7150 / AP7150R / AP7150G).
Manufactured for maximum stopping power and minimum brake fade, the kit offers high performance braking capability with race proven technology and comes complete with calipers, rotors, brake pads, coated stainless steel braided brake lines and all necessary mounting hardware for immediate bolt-on.
Two-piece modular rotors float on an aluminum hat and have 72 directionally curved vanes to maximize cooling in extreme brake situations. Both front and rear rotors are available in a cross-drilled and slotted pattern for an aggressive pad bite and better face cooling or can be purchased slotted only for aggressive track use. The AP Racing Strap Drive System has been developed for both road and track day applications. It uses a series of stainless steel straps to locate the disc to the mounting bell, producing a flexible coupling between the hub and the disc faces. This allows the disc to run true in the caliper under all conditions and also permits the disc to expand and contract without being restricted.
Strong, durable and designed to withstand any punishment, AP Racing Brake calipers are manufactured with a lightweight, pressure cast aluminum alloy 2-piece body and finished with a hard anodized 2-part paint finish. This 2-piece design is more rigid than commonly available monoblock calipers. Differential piston bores eliminate pad taper and maximize braking efficiency, and the anti-rattle clip eliminates pad knock and noise. A fixed radial mount ensures minimal caliper flex for the best available brake feel under all operating conditions.
AP Racing Big Brake upgrade kits for the 2008-2010 BMW M3 are available directly from Stillen and retail for $3,795.25.