4-Inch DPF Race Pipe

The Spelab SPES08113 is a 4-inch DPF race pipe engineered to completely remove the factory Diesel Particulate Filter (DPF) on 2007.5-2012 Dodge Ram 2500/3500 models equipped with the 6.7L Cummins diesel engine. This creates the most direct exhaust path from the turbo outlet, significantly reducing exhaust backpressure and lowering EGTs. The straight-through design is ideal for competition vehicles and track-focused builds where unrestricted flow and weight savings are priorities. Constructed from 2mm thick T-409 stainless steel, this DPF delete pipe offers durability and heat resistance. It features a 4.0" inlet diameter. The benefits of installing this race pipe include a significant increase in fuel mileage, elimination of DPF servicing needs (cleaning and replacement), and removal of the possibility of costly DPF failures. Paired with an ECU remap, this pipe is proven to increase power and torque. Installation is estimated to take about 1 hour with basic hand tools. Clamps, hangers, and hardware are included, though some factory hardware may need to be reused. A DPF delete capable tuner is required to prevent check engine lights or diagnostic trouble codes, as emission-related sensors are removed. Cutting may be required for shorter wheelbase configurations. This race pipe is specifically designed for the 2007.5-2012 Dodge Ram 2500/3500 6.7L Diesel. It will not fit Cab & Chassis commercial-style trucks or trucks with air-ride suspension. Please note that DPF removal is illegal for on-road vehicles in most regions and is intended for off-road competition or racing use only.