Universal Twister/Auger Muffler
This universal diesel truck muffler delivers a deep tone and smooth flow. Ideal for custom builds needing high-performance, low-backpressure exhaust.
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GDP MPVI4 E66 Tune Files LM2. Requires E66 unlock and 6 credits. Level 1 and Level 2 options for 2021–2025 Duramax 3.0L Global B trucks.
Custom fitment brief
Outline your vehicle, performance targets, and timeline. The build desk will confirm availability, pricing, and next steps in writing.
This universal diesel truck muffler delivers a deep tone and smooth flow. Ideal for custom builds needing high-performance, low-backpressure exhaust.
Install the DIESELR Cat & DPF Race Pipe on your 2007–2012 Cummins 6.7L. Built tough with stainless steel for airflow, sound, and off-road performance.
Install the DIESELR Cat & DPF Race Pipe on your 6.4L Powerstroke (2008–2010). Built from stainless steel for strength, fitment, and off-road performance.
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