Monster Exhaust System, Single Exit, Black Tip for use with 2007-2008 Toyota Tundra, 5.7L RCSB Regular Cab Short Bed Key Features: 3 inch mandrel bent Stainless Steel construction Dramatically improves flow up to 114 percent 4 inch polished Cerekote BLACK tip Cuts backpressure up to 76 percent Add up to 11 hp and 11 lb-ft Lowers exhaust gas temps Straight-thru muffler Maximum Airflow