StopTech - Trophy Big Brake Kit - Rear

Intended for ultra-high performance street use. They are designed for street driven production vehicles. The Trophy Sport Big Brake Kits use the same STR calipers, AeroRotors and AeroHats found in the full-race Trophy Kits, but add silicone dust boots for extended service intervals and anti-rattle rotor mounting hardware for quieter operation. They also include StopTech Street Performance Brake Pads for high performance street and occasional track use. Trophy Sport Big Brake Kits are the ultimate street braking system. StopTech AeroRotors incorporate several design innovations to improve rotor airflow, cooling and heat capacity. The ability to absorb and dissipate heat is essential to brake system performance. The uniquely designed vanes inside the AeroRotors optimize airflow through the disc. This improved directional design minimizes turbulence and flows more air than any other rotor tested. Better Airflow means better cooling and less fade. AeroRotors are available either drilled or slotted for better dissipation of pad material and heat. An optional anti-corrosion gold zinc coating benefits customers who live in colder climates, where snow and road salt are commonly encountered. Zinc coating also benefits customers who prefer no visible surface rust on the vanes and outer circumference of their rotors. Larger wheels are typically needed when installing a Big Brake Kit. StopTech provides a large database of wheel fitment templates to ensure proper fit with your aftermarket wheels. Caliper Features: - Stiffest aftermarket caliper available gives a consistent firm pedal - Fully machined and lightweight for track action - Hard anodized finish that is impervious to color change or fading - Fully forged and extremely stiff for firmer brake pedal feel - Meticulously engineered 2-piece design reduces flex - Patented, removable center bridge further resists yaw(flex) - Carefully selected piston sizes for precise torque output Rotor Features: - Specifically engineered and patented AeroVanes for optimum cooling - Patented, billet 7075 aluminum AeroHats for improved airflow - Full-floating mounting hardware to eliminate pad knock-back - Optimized to provide even performance and consistent feedback - Hard-anodized hats are impervious to color change or fading Kit Includes: - Patented StopTech AeroRotors for optimized airflow - Patented, billet 7075 aluminum AeroHats to further increase airflow - Forged StopTech STR calipers with patented bolt-in bridge for ultimate stiffness - StopTech stainless steel brake lines - Race engineered caliper brackets - Hard-anodized finish on calipers and hats that resists fading and discoloration Models Supported 2008+ BMW E82/E85 135i 2011 BMW E82 1M 2001-2006 BMW E46 M3 2007-2012 BMW E9X 335i 2008-2013 BMW E9X M3 2012+ BMW F30/F31 335i 2006-2010 BMW E60 M5 2011+ BMW F10/F11 550i 2006-2010 BMW E63/E64 M6 2006-2008 BMW E85/E86 Z4M