Dynalite - GT front brake kits with Spec37 alloy GT - 72 rotors and new formula BP - 20 Smart Pads deliver rotor and driver friendly driving on the street, with extended duty range for auto - cross and on - track driving events. Kit Features Engineered for dual - purpose street and track applications equipped with 15 wheels and fully compatible with the OE hydraulics and ABS controls. Direct bolt - on installation to the OE hubs and spindles. Forged aluminum Dynalite calipers with stainless steel pistons and internal seals. Spec 37 alloy 11 GT series 72 vane competition series rotors. Two - piece rotor mounting with weight saving aluminum hats. Choice of black anodized or red powder coated calipers.