Technical Overview

Competition-grade diesel exhaust systems for Ford Powerstroke, Ram Cummins, GM Duramax, Mercedes Sprinter, and Nissan Cummins platforms. Turbo-back and downpipe-back layouts deliver high flow, quicker spool, and a deep diesel tone. Listings are organized by engine and model year for fast, accurate fitment.

Engineering and Design Advantage

• Maximum Flow: 4' and 5' mandrel bends reduce backpressure for stronger mid-range and top-end.
• Quicker Spool, Lower EGTs: Optimized routing improves scavenging and heat control under load.
• Signature Tone: Aggressive diesel sound; muffler and straight-pipe options available.
• Vehicle-Specific Fit: OEM-style hangers and brackets for direct bolt-on installs.
• Durable Metals: T409/T304 stainless options resist corrosion and high temperatures.

Collection Includes

Ram Cummins

• 6.7L Down-pipe Back Competition Exhaust (2013-2018)
• 6.7L 4' Downpipe-Back Stainless Exhaust System (2019-2024)
• 6.7L Downpipe-Back Exhaust System (2019-2024)
• 6.7L Turbo-Back Race Exhaust w/o Muffler (2007.5-2012)
• 6.7L C&C 5' Turbo-Back Race Exhaust System (2011-2018)

Ford Powerstroke

• 6.7L 5' Downpipe-Back Race Exhaust (2011-2022)
• 6.7L 4' Downpipe-Back Race Exhaust (2011-2024)
• 6.7L 4' Downpipe-Back Stainless Exhaust System (2011-2025)
• 6.4L 4' Downpipe-Back Exhaust System (2008-2010)
• 6.0L Turbo-Back Race Exhaust System (2003-2007)
• 7.3L 5' Turbo-Back Race Exhaust (1999-2003)

GM Duramax

• L5P Down-pipe Back Race Exhaust System (2017-2023)
• L5P 4' Down-pipe Back Race Exhaust (2017-2023)
• LML Down-pipe Back Race Exhaust (2015.5-2016)
• 6.6L Downpipe-Back Race Exhaust (2011-2015)
• 6.6L Down-pipe Back Race Exhaust (2001-2007)
• LMM 4' Down-pipe Back Exhaust (2007.5-2010)
• LM2 Cat & DPF Race Pipe (2020-2022)
• Canyon/Colorado LWN 3' Turbo-Back Race Exhaust (2016-2021)

Mercedes Sprinter

• 3.0L 3' DPF Delete Performance Exhaust (2010-2018)
• 3.0L 3' DPF Delete Parts Kit (2010-2025)

Nissan Cummins

• 5.0L Race Exhaust w/ Muffler (2016-2018)

Mufflers & Components

• Stainless Steel Diesel Muffler T409 4' Diesel Muffler

Key Performance Specifications

• Diameters: 4' and 5' systems by application.
• Materials: T409/T304 stainless, mandrel-bent.
• Layout: Turbo-back and downpipe-back configurations.

How to Find the Correct System

1. Match engine + year range in the title.
2. Select turbo-back or downpipe-back.
3. Choose 4' vs 5' diameter and muffler vs no-muffler.

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