GM Duramax DPSS-GM-16 6.6L Cat & DPF Delete Pipe (2015.5-2016) - Stainless Steel

Free up exhaust flow and support performance-focused builds. This 4” Stainless Steel DPF Delete Race Pipe is engineered for 2015.5–2016 GMC Sierra and Chevy Silverado 2500/3500HD trucks equipped with the 6.6L Duramax and OEM-style 3-bolt turbo flange. Designed for off-road and competition applications, this pipe replaces the factory catalytic converter and DPF assembly to reduce exhaust restriction and backpressure.

For off-road/competition use only. Proper tuning is required.

The factory DPF and catalytic converter system can create significant exhaust restriction. This 4” stainless race pipe replaces those components with a straight-through design, supporting improved exhaust flow and reduced backpressure in performance applications. Built with OE-style hangers and durable stainless construction, it provides a secure, direct-fit installation on compatible trucks.

△ 4” Ferritic stainless steel piping

△ OE style hangers for easy installation

△ Maximum exhaust flow & no bungs

△ Downpipe-back

△ Moderate rust resistance - 5-8 years

△ Magnetic

Vehicle Fitment

2015.5–2016 GMC Sierra 2500HD/3500HD – 6.6L Duramax (3-bolt flange models)

2015.5–2016 Chevy Silverado 2500HD/3500HD – 6.6L Duramax (3-bolt flange models)

Not compatible with Cab & Chassis models.

Designed specifically for OEM-style 3-bolt turbo flange configurations.