For the true enthusiast Billy Boat Performance Exhaust developed these cat pipes to upgrade the B&B cat back and headers. Manufactured from 3” CNC mandrel bent T304 stainless steel along with a 200 cell high flow metal matrix catalysts these pipes eliminate the restrictive OE cats for better exhaust flow and dyno proven 39 horsepower and 46 foot pounds of torque with the complete B&B header back package. With great attention to detail these pipes were designed to be a direct bolt on part, include all necessary hardware and are backed by B&B’s limited LIFETIME warranty. *THESE UNITS ARE DESIGNED FOR OFF-HIGHWAY RACING ONLY AND SHOULD NOT BE USED ON PUBLIC ROADS*