3.5" to 3" DPF Delete Downpipe

The BMW 335d (2009-2011) DPF and Adblue Delete Performance Exhaust Kit by Rawtek is engineered to enhance the performance and reliability of your vehicle by removing the restrictive Diesel Particulate Filter (DPF) system, allowing for improved exhaust flow. Constructed from robust 304 grade stainless steel, this downpipe features a 3.5" OD constant diameter tubing that tapers to 3" OD, designed for maximum outflow. Its construction is twice as thick as comparable products, ensuring bulletproof reliability in harsh conditions while also helping to reduce under hood temperatures and noise. When combined with the required software and SCR Cat delete, this kit offers significant benefits, including an increase to up to 342 wheel horsepower (whp) and 504 wheel torque (wtq), alongside longer turbo life due to the elimination of the DPF. The kit includes stainless steel installation hardware. The estimated installation time is around 6-8 hours, varying based on experience and tools. This kit is compatible with North American spec BMW 335d models from 2009-2011 that are equipped with a DPF. It is crucial to note that proper ECM tuning is required for the vehicle to run correctly without check engine lights or fault codes. Tuning can be achieved via a Bench Flash for certain models or using the Flashzilla device. If an item is not compatible with the application listed in the description, it can be returned for a full refund.