The MagnaFlow Toyota Tundra Off Road Pro Series 17111 brings additional off-roading prowess and our deep signature exhaust note to your 5.7L 2009-2013 Toyota Tundra with a weight-optimized, dyno-tested, corrosion resistant and durable stainless steel design engineered to closely hug the undercarriage for improved ground clearance. Exhaust kit 17111 is engineered to produce Very Aggressive exterior and Aggressive interior sound levels. Extensive 3D scanning was used during the development of this Toyota Tundra exhaust system to create a direct-fit design, enabling a do-it-yourself installation process. 17111’s emissions-legal cat-back design replaces all your truck’s exhaust components from the catalytic converter on back with its 2.5in. diameter mandrel bent main piping that passes through 1 Straight-Through mufflers before ending in a turndown before rear axle exit with 3in. Satin Clamp-On-Single Wall-Turndown-Cut Edge tips. Exhaust system 17111 is produced using advanced CNC precision robotic manufacturing techniques and backed by MagnaFlow’s limited lifetime warranty.