2007.5-2019 GM 6.6L Duramax 304 Stainless Steel DPF-Back Performance Exhaust System with Polished Tip

4” 304 stainless steel high-flowing DPF-Back system single exhaust. Turbo-charged engines need as little exhaust restriction as possible in order for the turbo to spool up faster and work more efficiently. Install our new reduced-restriction exhaust system to ensure your truck works at its best. Sounds great, looks great, and upgrades your truck with long-lasting performance. Note:*This product does not fit - Crew Cab Long Bed.*This product retains all factory emissions components including DPF filter