StopTech Trophy Big Brake Kits are bred for racing. They include forged, lightweight StopTech STR calipers, floating, slotted AeroRotors, stainless steel brake lines, and race engineered caliper brackets. Easily identifiable by their unique shape and finish, StopTech Trophy Big Brake Kit components feature a MIL-spec hard-anodizing on the Trophy STR calipers and AeroHats that is impervious to color change or fading at extreme race temperatures. StopTech Trophy Kits feature ultra-high performance STR lightweight forged calipers in six-piston, four-piston or two-piston configurations. Based on the highly praised StopTech ST-60, ST-40, and ST-22 calipers, STR calipers feature the same metallurgy and design, but are engineered to provide up to a 20-percent reduction in weight without sacrificing stiffness or performance. There are two types of StopTech Trophy Big Brake Kits available - one for the track and the other for the street. *All StopTech Trophy Big Brake Kits include:* * 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 *Differences Between Track and Street Kits* *StopTech Trophy Race Big Brake Kits* Designed specifically for motorsports competition and dedicated track cars. Unique to the Trophy Race Big Brake System is full-floating mounting hardware, which eliminates pad knock-back, and the elimination of the dust boots in the caliper. Together, these technologies optimize the brake system to provide improved performance and consistent pedal feedback under the unique combination of hard cornering and braking found on the track.