2011-2016 GM 2500HD/3500HD 6.6L LML Duramax Engine & Performance

2011-2016 GM 2500HD/3500HD 6.6L LML Duramax Crate Engines

Crate Engines

2011-2016 GM 2500HD/3500HD 6.6L LML Duramax Gaskets, Gasket Kits & Bearings

Gaskets

2011-2016 GM 2500HD/3500HD 6.6L LML Duramax Glow Plugs

Glow Plugs

2011-2016 GM 2500HD/3500HD 6.6L LML Duramax Head Studs & Main Studs

Head Studs & Main Studs

2011-2016 GM 2500HD/3500HD 6.6L LML Duramax Heads & Valve Train

Heads & Valve Train

2011-2016 GM 2500HD/3500HD 6.6L LML Duramax Motor Mounts

Motor Mounts

2011-2016 GM 2500HD/3500HD 6.6L LML Duramax Oil Pans

Oil Pans

2011-2016 GM 2500HD/3500HD 6.6L LML Duramax Radiators & Cooling Upgrades

Radiators & Cooling Upgrades

2011-2016 GM 2500HD/3500HD 6.6L LML Duramax Rebuild Kits & Internal Parts

Rebuild Kits & Internal Parts

2011-2016 GM 2500HD/3500HD 6.6L LML Duramax Rods, Pistons, Cams & More

Rods/Pistons/Cams & More

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Industrial 44B112 Coated & De-Lipped X-Series Piston Kit (.040) | 2001-2016 GM Sierra/Silverado 2500HD/3500HD 6.6L Duramax
Industrial 44B112 Coated & De-Lipped X-Series Piston Kit (.040) | 2001-2016 GM Sierra/Silverado 2500HD/3500HD 6.6L Duramax
Industrial 44B112 Coated & De-Lipped X-Series Piston Kit (.040) | 2001-2016 GM Sierra/Silverado 2500HD/3500HD 6.6L Duramax
Industrial 44B112 Coated & De-Lipped X-Series Piston Kit (.040) | 2001-2016 GM Sierra/Silverado 2500HD/3500HD 6.6L Duramax

Industrial Injection

Industrial 44B112 Coated & De-Lipped X-Series Piston Kit (.040) | 2001-2016 GM Sierra/Silverado 2500HD/3500HD 6.6L Duramax

SKU: IIS44B112
$2,327.95
$2,399.95
Industrial 44B111 Coated & De-Lipped X-Series Piston Kit (.030) | 2001-2016 GM Sierra/Silverado 2500HD/3500HD 6.6L Duramax
Industrial 44B111 Coated & De-Lipped X-Series Piston Kit (.030) | 2001-2016 GM Sierra/Silverado 2500HD/3500HD 6.6L Duramax
Industrial 44B111 Coated & De-Lipped X-Series Piston Kit (.030) | 2001-2016 GM Sierra/Silverado 2500HD/3500HD 6.6L Duramax
Industrial 44B111 Coated & De-Lipped X-Series Piston Kit (.030) | 2001-2016 GM Sierra/Silverado 2500HD/3500HD 6.6L Duramax

Industrial Injection

Industrial 44B111 Coated & De-Lipped X-Series Piston Kit (.030) | 2001-2016 GM Sierra/Silverado 2500HD/3500HD 6.6L Duramax

SKU: IIS44B111
$2,327.95
$2,399.95
Industrial 44B110 Coated & De-Lipped X-Series Piston Kit (.020) | 2001-2016 GM Sierra/Silverado 2500HD/3500HD 6.6L Duramax
Industrial 44B110 Coated & De-Lipped X-Series Piston Kit (.020) | 2001-2016 GM Sierra/Silverado 2500HD/3500HD 6.6L Duramax
Industrial 44B110 Coated & De-Lipped X-Series Piston Kit (.020) | 2001-2016 GM Sierra/Silverado 2500HD/3500HD 6.6L Duramax
Industrial 44B110 Coated & De-Lipped X-Series Piston Kit (.020) | 2001-2016 GM Sierra/Silverado 2500HD/3500HD 6.6L Duramax

Industrial Injection

Industrial 44B110 Coated & De-Lipped X-Series Piston Kit (.020) | 2001-2016 GM Sierra/Silverado 2500HD/3500HD 6.6L Duramax

SKU: IIS44B110
$2,327.95
$2,399.95
Industrial 44B109 Coated & De-Lipped X-Series Piston Kit (Standard) | 2001-2016 GM Sierra/Silverado 2500HD/3500HD 6.6L Duramax
Industrial 44B109 Coated & De-Lipped X-Series Piston Kit (Standard) | 2001-2016 GM Sierra/Silverado 2500HD/3500HD 6.6L Duramax
Industrial 44B109 Coated & De-Lipped X-Series Piston Kit (Standard) | 2001-2016 GM Sierra/Silverado 2500HD/3500HD 6.6L Duramax
Industrial 44B109 Coated & De-Lipped X-Series Piston Kit (Standard) | 2001-2016 GM Sierra/Silverado 2500HD/3500HD 6.6L Duramax

Industrial Injection

Industrial 44B109 Coated & De-Lipped X-Series Piston Kit (Standard) | 2001-2016 GM Sierra/Silverado 2500HD/3500HD 6.6L Duramax

SKU: IIS44B109
$2,327.95
$2,399.95
Industrial 44B104 X-Series Piston Kit (.040) | 2001-2016 GM Sierra/Silverado 2500HD/3500HD 6.6L Duramax
Industrial 44B104 X-Series Piston Kit (.040) | 2001-2016 GM Sierra/Silverado 2500HD/3500HD 6.6L Duramax
Industrial 44B104 X-Series Piston Kit (.040) | 2001-2016 GM Sierra/Silverado 2500HD/3500HD 6.6L Duramax
Industrial 44B104 X-Series Piston Kit (.040) | 2001-2016 GM Sierra/Silverado 2500HD/3500HD 6.6L Duramax

Alligator Performance

Industrial 44B104 X-Series Piston Kit (.040) | 2001-2016 GM Sierra/Silverado 2500HD/3500HD 6.6L Duramax

SKU: IIS44B104
$1,842.95
$1,899.95
Industrial 44B103 X-Series Piston Kit (.030) | 2001-2016 GM Sierra/Silverado 2500HD/3500HD 6.6L Duramax
Industrial 44B103 X-Series Piston Kit (.030) | 2001-2016 GM Sierra/Silverado 2500HD/3500HD 6.6L Duramax
Industrial 44B103 X-Series Piston Kit (.030) | 2001-2016 GM Sierra/Silverado 2500HD/3500HD 6.6L Duramax
Industrial 44B103 X-Series Piston Kit (.030) | 2001-2016 GM Sierra/Silverado 2500HD/3500HD 6.6L Duramax

Industrial Injection

Industrial 44B103 X-Series Piston Kit (.030) | 2001-2016 GM Sierra/Silverado 2500HD/3500HD 6.6L Duramax

SKU: IIS44B103
$1,842.95
$1,899.95
Industrial 44B102 X-Series Piston Kit (.020) | 2001-2016 GM Sierra/Silverado 2500HD/3500HD 6.6L Duramax
Industrial 44B102 X-Series Piston Kit (.020) | 2001-2016 GM Sierra/Silverado 2500HD/3500HD 6.6L Duramax
Industrial 44B102 X-Series Piston Kit (.020) | 2001-2016 GM Sierra/Silverado 2500HD/3500HD 6.6L Duramax
Industrial 44B102 X-Series Piston Kit (.020) | 2001-2016 GM Sierra/Silverado 2500HD/3500HD 6.6L Duramax

Industrial Injection

Industrial 44B102 X-Series Piston Kit (.020) | 2001-2016 GM Sierra/Silverado 2500HD/3500HD 6.6L Duramax

SKU: IIS44B102
$1,842.95
$1,899.95
Industrial 44B101 X-Series Piston Kit (Standard) | 2001-2016 GM Sierra/Silverado 2500HD/3500HD 6.6L Duramax
Industrial 44B101 X-Series Piston Kit (Standard) | 2001-2016 GM Sierra/Silverado 2500HD/3500HD 6.6L Duramax
Industrial 44B101 X-Series Piston Kit (Standard) | 2001-2016 GM Sierra/Silverado 2500HD/3500HD 6.6L Duramax
Industrial 44B101 X-Series Piston Kit (Standard) | 2001-2016 GM Sierra/Silverado 2500HD/3500HD 6.6L Duramax

Industrial Injection

Industrial 44B101 X-Series Piston Kit (Standard) | 2001-2016 GM Sierra/Silverado 2500HD/3500HD 6.6L Duramax

SKU: IIS44B101
$1,842.95
$1,899.95
Fluidampr 830121 Harmonic Balancers | 2011-2016 GM/Chevy Silverado 2500HD/3500HD 6.6L Duramax
Fluidampr 830121 Harmonic Balancers | 2011-2016 GM/Chevy Silverado 2500HD/3500HD 6.6L Duramax

Fluidampr

Fluidampr 830121 Harmonic Balancers | 2011-2016 GM/Chevy Silverado 2500HD/3500HD 6.6L Duramax

SKU: FLU830121
$574.82
$676.26
Mahle 2243935WR Engine Piston | 2010-2016 GM Sierra/Silverado 2500HD/35000HD 6.6L Duramax
IN STOCK
Mahle 2243935WR Engine Piston | 2010-2016 GM Sierra/Silverado 2500HD/35000HD 6.6L Duramax
Mahle 2243935WR Engine Piston | 2010-2016 GM Sierra/Silverado 2500HD/35000HD 6.6L Duramax

Mahle

Mahle 2243935WR Engine Piston | 2010-2016 GM Sierra/Silverado 2500HD/35000HD 6.6L Duramax

SKU: MCI2243935WR
$110
$175.53
Mahle 54597 1.05mm Thick Wave Stopper Head Gasket (Left) | 2001-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
IN STOCK
Mahle 54597 1.05mm Thick Wave Stopper Head Gasket (Left) | 2001-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

Mahle

Mahle 54597 1.05mm Thick Wave Stopper Head Gasket (Left) | 2001-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

SKU: MCI54597
$183.51
PPE 118061403 Engine Oil Pan Gasket (18 Holes) | 2011-2016 GM Sierra/Silverado 2500HD/3500HD 6.6L Duramax LML
PPE 118061403 Engine Oil Pan Gasket (18 Holes) | 2011-2016 GM Sierra/Silverado 2500HD/3500HD 6.6L Duramax LML

PPE

PPE 118061403 Engine Oil Pan Gasket (18 Holes) | 2011-2016 GM Sierra/Silverado 2500HD/3500HD 6.6L Duramax LML

SKU: PPE118061403
$14.39
$15.99
Wehrli 100443 Black Anodized Billet Oil Fill Tube Cap | 2001-2026 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
IN STOCK
Wehrli 100443 Black Anodized Billet Oil Fill Tube Cap | 2001-2026 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
Wehrli 100443 Black Anodized Billet Oil Fill Tube Cap | 2001-2026 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
Wehrli 100443 Black Anodized Billet Oil Fill Tube Cap | 2001-2026 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
Wehrli 100443 Black Anodized Billet Oil Fill Tube Cap | 2001-2026 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

Wehrli Custom Fab

Wehrli 100443 Black Anodized Billet Oil Fill Tube Cap | 2001-2026 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

SKU: WCF100443
$51.41
PPE 110090053 Straight Valve Springs, Retainers, and Keepers Kit | 2001-2016 GM Silverado 2500HD/3500HD6.6L Duramax
IN STOCK
PPE 110090053 Straight Valve Springs, Retainers, and Keepers Kit | 2001-2016 GM Silverado 2500HD/3500HD6.6L Duramax
PPE 110090053 Straight Valve Springs, Retainers, and Keepers Kit | 2001-2016 GM Silverado 2500HD/3500HD6.6L Duramax
PPE 110090053 Straight Valve Springs, Retainers, and Keepers Kit | 2001-2016 GM Silverado 2500HD/3500HD6.6L Duramax

PPE

PPE 110090053 Straight Valve Springs, Retainers, and Keepers Kit | 2001-2016 GM Silverado 2500HD/3500HD6.6L Duramax

SKU: PPE110090053
$539.99
$599.99
PPE 119021030 EGR Cooler Water Bypass Inlet Hose | 2011-2013 GM Sierra/Silverado 2500HD/3500HD 6.6L Duramax LML
IN STOCK
PPE 119021030 EGR Cooler Water Bypass Inlet Hose | 2011-2013 GM Sierra/Silverado 2500HD/3500HD 6.6L Duramax LML

PPE

PPE 119021030 EGR Cooler Water Bypass Inlet Hose | 2011-2013 GM Sierra/Silverado 2500HD/3500HD 6.6L Duramax LML

SKU: PPE119021030
$13.49
$14.99
Fleece FPE-HAR-MU-PT-11 Multiuse Sensor Pigtail 11 | 2001-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
IN STOCK
Fleece FPE-HAR-MU-PT-11 Multiuse Sensor Pigtail 11 | 2001-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
Fleece FPE-HAR-MU-PT-11 Multiuse Sensor Pigtail 11 | 2001-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
Fleece FPE-HAR-MU-PT-11 Multiuse Sensor Pigtail 11 | 2001-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

Fleece Performance Products

Fleece FPE-HAR-MU-PT-11 Multiuse Sensor Pigtail 11 | 2001-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

SKU: FLCFPE-HAR-MU-PT-11
$18.99
Industrial Injection PDM-LMLSTKLB-E Long Block Crate Engine | 2011-2016 GM Sierra/Silverado 6.6 LML Duramax
Industrial Injection PDM-LMLSTKLB-E Long Block Crate Engine | 2011-2016 GM Sierra/Silverado 6.6 LML Duramax
Industrial Injection PDM-LMLSTKLB-E Long Block Crate Engine | 2011-2016 GM Sierra/Silverado 6.6 LML Duramax
Industrial Injection PDM-LMLSTKLB-E Long Block Crate Engine | 2011-2016 GM Sierra/Silverado 6.6 LML Duramax
Industrial Injection PDM-LMLSTKLB-E Long Block Crate Engine | 2011-2016 GM Sierra/Silverado 6.6 LML Duramax

Industrial Injection

Industrial Injection PDM-LMLSTKLB-E Long Block Crate Engine | 2011-2016 GM Sierra/Silverado 6.6 LML Duramax

SKU: IISPDM-LMLSTKLB-E
$9,505.95
$9,799.95
PPE 118034350 Head Stud Kit - PPE-288 High Yield | 2001-2016 GM Sierra/Silverado 2500HD/3500HD 6.6L Duramax
IN STOCK
PPE 118034350 Head Stud Kit - PPE-288 High Yield | 2001-2016 GM Sierra/Silverado 2500HD/3500HD 6.6L Duramax
PPE 118034350 Head Stud Kit - PPE-288 High Yield | 2001-2016 GM Sierra/Silverado 2500HD/3500HD 6.6L Duramax
PPE 118034350 Head Stud Kit - PPE-288 High Yield | 2001-2016 GM Sierra/Silverado 2500HD/3500HD 6.6L Duramax
PPE 118034350 Head Stud Kit - PPE-288 High Yield | 2001-2016 GM Sierra/Silverado 2500HD/3500HD 6.6L Duramax
PPE 118034350 Head Stud Kit - PPE-288 High Yield | 2001-2016 GM Sierra/Silverado 2500HD/3500HD 6.6L Duramax

PPE

PPE 118034350 Head Stud Kit - PPE-288 High Yield | 2001-2016 GM Sierra/Silverado 2500HD/3500HD 6.6L Duramax

SKU: PPE118034350
$1,709.99
$1,899.99
DFC Diesel TH661116LMLSOALBHD Tow Haul HD Series Speed Of Air Long Block (Standard/Auto) | 2011-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LML/LGH
DFC Diesel TH661116LMLSOALBHD Tow Haul HD Series Speed Of Air Long Block (Standard/Auto) | 2011-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LML/LGH
DFC Diesel TH661116LMLSOALBHD Tow Haul HD Series Speed Of Air Long Block (Standard/Auto) | 2011-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LML/LGH
DFC Diesel TH661116LMLSOALBHD Tow Haul HD Series Speed Of Air Long Block (Standard/Auto) | 2011-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LML/LGH
DFC Diesel TH661116LMLSOALBHD Tow Haul HD Series Speed Of Air Long Block (Standard/Auto) | 2011-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LML/LGH
DFC Diesel TH661116LMLSOALBHD Tow Haul HD Series Speed Of Air Long Block (Standard/Auto) | 2011-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LML/LGH

DFC Diesel

DFC Diesel TH661116LMLSOALBHD Tow Haul HD Series Speed Of Air Long Block (Standard/Auto) | 2011-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LML/LGH

SKU: DDUTH661116LMLSOALBHD
$29,059.40
DFC Diesel TH661116LMLSOALB Tow Haul Series Speed Of Air Long Block (Standard/Auto) | 2011-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LML/LGH
DFC Diesel TH661116LMLSOALB Tow Haul Series Speed Of Air Long Block (Standard/Auto) | 2011-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LML/LGH
DFC Diesel TH661116LMLSOALB Tow Haul Series Speed Of Air Long Block (Standard/Auto) | 2011-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LML/LGH
DFC Diesel TH661116LMLSOALB Tow Haul Series Speed Of Air Long Block (Standard/Auto) | 2011-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LML/LGH
DFC Diesel TH661116LMLSOALB Tow Haul Series Speed Of Air Long Block (Standard/Auto) | 2011-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LML/LGH
DFC Diesel TH661116LMLSOALB Tow Haul Series Speed Of Air Long Block (Standard/Auto) | 2011-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LML/LGH

DFC Diesel

DFC Diesel TH661116LMLSOALB Tow Haul Series Speed Of Air Long Block (Standard/Auto) | 2011-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LML/LGH

SKU: DDUTH661116LMLSOALB
$21,244.72
DFC Diesel SS661116LMLSOALBCC Street Series Speed Of Air Long Block - Callies Crankshaft (Standard/Auto) | 2011-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LML/LGH
DFC Diesel SS661116LMLSOALBCC Street Series Speed Of Air Long Block - Callies Crankshaft (Standard/Auto) | 2011-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LML/LGH
DFC Diesel SS661116LMLSOALBCC Street Series Speed Of Air Long Block - Callies Crankshaft (Standard/Auto) | 2011-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LML/LGH
DFC Diesel SS661116LMLSOALBCC Street Series Speed Of Air Long Block - Callies Crankshaft (Standard/Auto) | 2011-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LML/LGH
DFC Diesel SS661116LMLSOALBCC Street Series Speed Of Air Long Block - Callies Crankshaft (Standard/Auto) | 2011-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LML/LGH
DFC Diesel SS661116LMLSOALBCC Street Series Speed Of Air Long Block - Callies Crankshaft (Standard/Auto) | 2011-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LML/LGH

DFC Diesel

DFC Diesel SS661116LMLSOALBCC Street Series Speed Of Air Long Block - Callies Crankshaft (Standard/Auto) | 2011-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LML/LGH

SKU: DDUSS661116LMLSOALBCC
$16,716.69
DFC Diesel SS661116LMLSOALB Street Series Speed Of Air Long Block (Standard/Auto) | 2011-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LML/LGH
DFC Diesel SS661116LMLSOALB Street Series Speed Of Air Long Block (Standard/Auto) | 2011-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LML/LGH
DFC Diesel SS661116LMLSOALB Street Series Speed Of Air Long Block (Standard/Auto) | 2011-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LML/LGH
DFC Diesel SS661116LMLSOALB Street Series Speed Of Air Long Block (Standard/Auto) | 2011-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LML/LGH
DFC Diesel SS661116LMLSOALB Street Series Speed Of Air Long Block (Standard/Auto) | 2011-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LML/LGH
DFC Diesel SS661116LMLSOALB Street Series Speed Of Air Long Block (Standard/Auto) | 2011-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LML/LGH

DFC Diesel

DFC Diesel SS661116LMLSOALB Street Series Speed Of Air Long Block (Standard/Auto) | 2011-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LML/LGH

SKU: DDUSS661116LMLSOALB
$14,637.73
Fleece FPE-HAR-DMAX-MAF-1116-PT MAF Sensor Pigtail | 2011-2016 GM 6.6L Duramax
IN STOCK
Fleece FPE-HAR-DMAX-MAF-1116-PT MAF Sensor Pigtail | 2011-2016 GM 6.6L Duramax
Fleece FPE-HAR-DMAX-MAF-1116-PT MAF Sensor Pigtail | 2011-2016 GM 6.6L Duramax
Fleece FPE-HAR-DMAX-MAF-1116-PT MAF Sensor Pigtail | 2011-2016 GM 6.6L Duramax

Fleece Performance Products

Fleece FPE-HAR-DMAX-MAF-1116-PT MAF Sensor Pigtail | 2011-2016 GM 6.6L Duramax

SKU: FLCFPE-HAR-DMAX-MAF-1116-PT
$29.99
Wagler C6686-2 Alternate Fire Camshaft | 2001-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
Wagler C6686-2 Alternate Fire Camshaft | 2001-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

Wagler Competition Products

Wagler C6686-2 Alternate Fire Camshaft | 2001-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

SKU: WCPC6686-2
$975

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DIESEL TRUCK EXPERTS STANDING BY

The 2011-2016 GM 6.6L Duramax LML's already comes equipped with tons of horsepower and torque off the factory line, but additional power and performance has never hurt any truck. Here at Alligator Performance, we offer a ton of engine parts and upgrades that are designed specifically to give your 6.6L Duramax engine improved throttle response, power and performance, taking your GM 2500/3500 truck to the next level in every circumstance. Check out our selection of cold air intakes, tuners, fuel upgrades, and turbo upgrades to help you get the most out of your diesel engine. Many of these upgrades like the cold air intakes and fuel upgrades help promote component longevity so you can enjoy a long-lasting and consistent performance without compromise. After you've added a few engine upgrades to your custom build, be sure to check out our premium 2011-2016 GM 6.6L Duramax LML Transmission Upgrades to compliment the increase in power you're throwing down! GM Duramax Fitments: 2011, 2012, 2013, 2014, 2015, 2016 GM 6.6L Duramax. Submodel Fitments: WT, Custom, LT, LTZ, High Country, 1LT, 2LT, Pro, SLE, SLT, AT4, Denali. Some exceptions apply, please see individual product pages for specific fitments.

GM Duramax>2011-2016 6.6L LML
Tuners & Monitors
Cooling Upgrades
Head Studs & Main Studs
Rods, Pistons & Cams
Heads & Valve Train

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