Performance Motorsport Parts exhaust systems are designed to fit OEM mounting points for perfect fitment. Performance Motorsport Parts exhausts enhance your car's sound and more importantly your vehicles power and torque. ---2.5" Bore throughout with twin 4.5" tailpipes ---Flared pipe end to fit the OEM system sealing with a donut gasket creating a tight seal ---Fits from the catalytic converter back ---Free flowing system to get the most from the 4U-GSE / FA20 boxer engine ---Engineered to improve throttle response and increased power and torque across the entire RPM range Compatible with: Toyota GT86 2012+ models Subaru BRZ 2012+ models Scion FRS 2012+ models.