Exhaust Systems
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6.6L Duramax LMM Downpipe Back Exhaust | 2007.5-2010 Silverado/Sierra 2500/3500HD
2007
Duramax
LMM
From $467.50
6.7L Cummins Turbo Back Race Exhaust | 2007.5-2012 RAM
(2007 - 2012)
Cummins
6.7L
From $632.50
6.6L Duramax LB7/LLY/LBZ Down-pipe Back Race Exhaust | GMC Chevy 2001-2007
(2001 - 2007)
Duramax
LB7, LLY, LBZ, 6.6L
From $440.00
6.6L Duramax LML Downpipe Back Race Exhaust | 2011-2015 GMC Chevrolet
(2011 - 2015)
Duramax
LML
From $505.00
7.3L Powerstroke Turbo Back Race Exhaust | 1999-2003 FORD
(1999 - 2003)
Powerstroke
7.3L
$522.50
6.6L Duramax LML Downpipe Back Race Exhaust | 2015.5-2016
(2015 - 2016)
Duramax
LML
From $510.00
2.8L Duramax LWN Turbo-Back Race Exhaust | 2016-2022 Canyon/Colorado
(2016 - 2022)
Duramax
LWN
$599.00
6.7L Powerstroke Cab Chassis Downpipe Back Exhaust System | FORD 2011-2019
(2011-2019)
Powerstroke
6.7L
$629.99
About Exhaust Systems
Technical Summary
High-flow competition exhaust systems designed for Ford Powerstroke, Ram Cummins, GM Duramax, Mercedes Sprinter, and Nissan Cummins engines. Systems are available in turbo-back and downpipe-back configurations to maximize exhaust flow, improve turbo response, and deliver an aggressive diesel tone. All products are categorized by engine model and vehicle year for precise, reliable fitment.
Engineering and Design Advantage
Maximum Flow: Features 4" and 5" mandrel-bent piping to reduce backpressure and enhance mid-range to top-end power.
Faster Spool, Lower EGTs: Optimized exhaust routing improves turbo scavenging and reduces exhaust gas temperatures under heavy load.
Distinctive Sound: Produces an aggressive diesel tone; available in straight-pipe or muffled configurations.
Precision Fitment: Uses direct bolt-on installation with factory-style hangers and brackets.
Rugged Construction: Made from T409 or T304 stainless steel for superior corrosion and high-temperature resistance.
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 specific to each application.
Construction: T409/T304 stainless steel, mandrel-bent tubing.
Configuration: Turbo-back and downpipe-back exhaust layouts.
How to Find the Correct System
- Match your engine and exact model year with the product title.
- Select a turbo-back or downpipe-back layout.
- Choose between 4" and 5" diameter, and select a muffler or straight-pipe option.