2008 Ford GT Mustang featuring Magnaflow polished stainless mufflers, Magnaflow hydroformed true-x pipe, and Corsa four inch "Viper" polished stainless tips. Horsepower gains were peaked at 14. Torque gains were at 11 lbs. Video production and exhaust fabrication compliments of Kinney's muffler shop. www.kinneysmufflershop.com