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View Cart | Product Description AP Racing 4-Piston Big Brake Kit, 2008 WRX/STI Rear $2,495.75 Black with SXDRed with SXDBlack with SlottedRed with SlottedComp Gray w/ SXD -- ( $75.90 )Comp Gray w/ Slotted -- ( $75.90 ) Return to Products For a big upgrade at an affordable price, Mann Engineering continues to offer world renown AP Racing 4-piston calipers running on 1-piece and/or 2-piece rotors. Each kit is designed to work with the original equipment master cylinder, ABS and traction control systems. Specially-designed rotors are cross-drilled and slotted, the optimum for high-performance street, autocross and occasional track day use. The curved vane construction provides for maximum cooling when pushing hard. 2-piece kits come with aluminum alloy hats for better thermal management and maximum weight reduction. DOT-compliant and TÜV-approved stainless steel lines are included to top off the upgrade and provide a huge improvement in pedal feel and stiffness. Brackets and hardware are made from aerospace-grade materials and high-strength fasteners. All AP Racing kits are complete with no other parts required. Install, bleed and go! Many kits require 17" wheels or larger with sufficient spoke clearance. Download a brake profile template to check your wheels before ordering. Put decades of championship-winning experience on your car. It's not just for Formula One and NASCAR winners anymore. Or LeMans, or British Touring Cars, or WRC, or Grand Am, or Super GT, or DTM... Application: MY2008 Subaru Impreza WRX incl. STi NOTES: This is a REAR fitment. Selecting Rotors: SXD = Slotted/Cross-Drilled Rotors Slotted = Slotted Only Rotors. AP Racing Caliper Clearance Template