Looking for an exhaust system that will boost the performance of your 2020-2022 L5P Duramax truck? Look no further than the MBRP S6059AL 4 Inch Installer Series Filter-Back Exhaust System. This system has been designed to increase flow by 192% and reduce backpressure by 85% compared to the stock system. Additionally, it features a huge patented 6.5" x 7.5" Ob-Round Slash-Cut Exhaust Tip and comes with a Cerakote Black Stainless Tip that will not turn brown with heat. The 5" Mandrel Bent Aluminized Steel DPF-Back Exhaust System ensures a 15% reduction in exhaust temperature 2 feet behind the tip during regeneration. So if you're looking for an exhaust system that will improve the performance of your truck, make sure to check out the MBRP S6059AL 4 Inch Installer Series Filter-Back Exhaust System.