Exhaust Systems

Performance exhaust systems are available in multiple sizes. The most common is a four-inch, these are designed for vehicles creating less then 450 horsepower. Larger diameter exhaust systems such as five-inch, are typically recommended for vehicles creating greater then 450 horsepower. Performance exhaust systems increase exhaust flow by eliminating the restrictive stock muffler, replacing factory crimped bends with smooth mandrel bent tubing, and increasing the overall pipe diameter. The benefits of increased exhaust-flow are reduced EGT's(exhaust gas temperature), increased horsepower/torque, fuel mileage gains, and a deep throaty sound.

Browse by Manufacturer:

Displaying products 1 - 20 of 68 results
Page 1 of 4 Page 1234movenext
AFE 49-04003 ATLAS 4" Downpipe-Back Race Exhaust System
From $345.00 to $395.00
Sale Price From $310.50 to $355.50
ratingratingratingratingrating
2011-2015 GM 6.6L Duramax LML
AFE 49-04035NM ATLAS 5" Down-Pipe Back No Muffler Race Exhaust System
$495.00
Sale Price $445.50
You Save $49.50
2011-2015 GM 6.6L Duramax LML
AFE 49-04041 ATLAS 5" DPF-Back Exhaust System
From $375.00 to $525.00
Sale Price From $337.50 to $472.50
ratingratingratingratingrating
2011-2016 GM 6.6L Duramax LML (Fits 2016 Models Without NOX Sensor)
AFE 49-04043 ATLAS 4" Dual DPF-Back Exhaust System
From $595.00 to $645.00
Sale Price From $535.50 to $580.50
ratingratingratingratingrating
2011-2016 GM 6.6L Duramax LML (Fits 2016 Models Without NOX Sensor)
AFE 49-04044 ATLAS 4" Dual Downpipe-Back Exhaust System
From $795.00 to $845.00
Sale Price From $715.50 to $760.50
2011-2015 GM 6.6L Duramax LML
AFE 49-04052 ATLAS 4" Dual Downpipe-Back Exhaust System
$579.00
Sale Price $521.10
You Save $57.90
2015.5 GM 6.6L Duramax LML (133.7" to 167.7" Wheelbase)
AFE 49-04053 ATLAS 4" Down-Pipe Back Race Exhaust System
$399.00
Sale Price $359.10
You Save $39.90
2015.5 GM 6.6L Duramax LML (133.7" to 167.7" Wheelbase)
AFE 49-04054NM ATLAS 5" Down-Pipe Back No Muffler Race Exhaust System
$529.00
Sale Price $476.10
You Save $52.90
ratingratingratingratingrating
2015.5 GM 6.6L Duramax LML (133.7" to 167.7" Wheelbase)
AFE 49-04080 ATLAS 4" Dual Filter-Back Exhaust System
From $599.00 to $649.00
Sale Price From $539.10 to $584.10
2016-2017 GM 6.6L Duramax (Fits Crew & Extended Cabs with NOX Sensor)
AFE 49-04081 ATLAS 5" Filter-Back Exhaust System
From $429.00 to $479.00
Sale Price From $386.10 to $431.10
2016-2017 GM 6.6L Duramax (Fits Crew & Extended Cabs with NOX Sensor)
AFE 49-4402X 4" MACH Force XP Race Exhaust System
From $415.00 to $495.00
Sale Price From $373.50 to $445.50
2011-2015 GM 6.6L Duramax LML (ECLB, CCSB & CCLB Configurations Only - Does not fit ECSB)
AFE 49-44035 MACH Force XP 5" Down-Pipe Back Race Exhaust System
From $665.00 to $840.75
Sale Price From $598.50 to $756.68
2011-2015 GM 6.6L Duramax LML
AFE 49-4403X MACH Force XP 4" Downpipe-Back Race Exhaust
From $515.00 to $615.00
Sale Price From $463.50 to $553.50
ratingratingratingratingrating
2011-2015 GM 6.6L Duramax LML (ECLB, CCSB & CCLB Configurations Only - Does not fit ECSB)
AFE 49-44041 MACH Force XP 5" DPF-Back Exhaust System
From $499.00 to $649.00
Sale Price From $449.10 to $584.10
ratingratingratingratingrating
2011-2016 GM 6.6L Duramax LML (Fits 2016 Models Without NOX Sensor)
AFE 49-44043-X Mach Force XP 4" Dual DPF-Back Exhaust System
From $795.00 to $845.00
Sale Price From $715.50 to $760.50
ratingratingratingratingrating
2011-2016 GM 6.6L Duramax LML (Fits 2016 Models Without NOX Sensor)
AFE 49-44044 MACH Force XP 4" Dual Downpipe-Back Race Exhaust System
From $995.00 to $1,045.00
Sale Price From $895.50 to $940.50
2011-2015 GM 6.6L Duramax
AFE 49-44052-X MACH Force XP 4" Downpipe-Back Race Exhaust System
From $739.00 to $779.00
Sale Price From $665.10 to $701.10
2015.5 GM 6.6L Duramax LML (133.7" to 167.7" Wheelbase)
AFE 49-44053-X MACH Force XP 4" Downpipe-Back Race Exhaust System
From $599.00 to $619.00
Sale Price From $539.10 to $557.10
2015.5 GM 6.6L Duramax LML (133.7" to 167.7" Wheelbase)
AFE 49-44054 MACH Force XP 5" Down-Pipe Back Race Exhaust System
From $769.00 to $819.00
Sale Price From $692.10 to $737.10
2015.5 GM 6.6L Duramax LML (133.7" to 167.7" Wheelbase)
AFE 49-44080 Large Bore HD 4" Dual Filter-Back Exhaust System
From $699.00 to $749.00
Sale Price From $629.10 to $674.10
2016-2017 GM 6.6L Duramax (Fits Crew & Extended Cabs with NOX Sensor)
Page 1 of 4 Page 1234movenext