Silverado 6.6L Duramax 5-Inch Downpipe Back Exhaust

Lower EGTs and improve exhaust flow with this massive 5-inch exhaust system for the L5P Duramax. This system attaches after the factory emissions equipment (DPF), keeping the truck 50-state legal while improving the look and sound. The larger diameter pipe reduces backpressure, allowing the turbo to breathe easier. Made from aluminized steel for durability. Includes a massive 6-inch polished stainless steel tip. Note: This is a 'filter-back' system and does not require tuning.