- For 2500 Trucks (If you have a 3500 please see GMRCK35S)
- Reduces sag, sway, and roll when towing and hauling
- Comfortable ride, loaded or unloaded
- DIY installation
- Zero post-installati...
Description: - For 2500 Trucks (If you have a 3500 please see GMRCK35S)
- Reduces sag, sway, and roll when towing and hauling
- Comfortable ride, loaded or unloaded
- DIY installation
- Zero...More Details »
- For 3500 Trucks (If you have a 2500 please see GMRCK25S)
- Reduces sag, sway, and roll when towing and hauling
- Comfortable ride, loaded or unloaded
- DIY installation
- Zero post-installati...
Description: - For 3500 Trucks (If you have a 2500 please see GMRCK25S)
- Reduces sag, sway, and roll when towing and hauling
- Comfortable ride, loaded or unloaded
- DIY installation
- Zero...More Details »
Item #: GMRCK35S
Condition: New
Price: $398.07
2001-2010 LB7 / LLY / LBZ / LMM Duramax Timbren Suspension Enhancement System - Front KitNew809933001494
- Reduces front-end sag and sway
- Comfortable ride, loaded or unloaded
- DIY installation
- Zero post-installation maintenance
- Rated Capacity: 14000 lbs
- 2x Patented Aeon® SES suspensions...
2001-2010 LB7/LLY/LBZ/LMM Duramax WCFab X PPE High-Capacity Cast Aluminum Oil PanNew
- Made from cast A356.0-T6 aluminum
- Includes fasteners, pan, NPT plug, and billet stainless steel Neodymium magnet drain plug
- Finished in your choice of custom powder colors
- Provides 1 add...
Description: - Made from cast A356.0-T6 aluminum
- Includes fasteners, pan, NPT plug, and billet stainless steel Neodymium magnet drain plug
- Finished in your choice of custom powder colors
- Provides 1 additional Quart of Oil Capacity vs. Stock
- Fully TIG Welded, CNC machined billet steel exhaust manifolds
- Finished in Black Ceramic Coat rated for 1800ºF
- Includes new gaskets for manifold to cylinder head and manifold to up pipe
-...
Description: - Fully TIG Welded, CNC machined billet steel exhaust manifolds
- Finished in Black Ceramic Coat rated for 1800ºF
- Includes new gaskets for manifold to cylinder head and manifold to up pipe
-...More Details »
Item #: WCF100363
Condition: New
In Stock. Ships in 3-5 business days.
This Product cannot ship to the state of California
Price: $1,399.00
2001-2016 Duramax LB7/LLY/LBZ/LMM/LML ARP Custom Age 625+ Head Stud KitNew672036035853
- ARP Custom Age 625+ Material
- 260,000 PSI Tensile Strength
- Chrome-moly Steel, 12-Point Nuts
- Parallel-Ground Washers Included
- Sold as a kit
- Made in USA
- For Competition Use
Description: - ARP Custom Age 625+ Material
- 260,000 PSI Tensile Strength
- Chrome-moly Steel, 12-Point Nuts
- Parallel-Ground Washers Included
- Sold as a kit
- Made in USA
- For Competition Use
Item #: 230-4202
Condition: New
Price: $1,935.00
2001-2016 Duramax LB7/LLY/LBZ/LMM/LML ARP-2000 Head Stud KitNew672036032678
- ARP 2000 Material
- 220,000 PSI Tensile Strength
- Chrome-moly Steel, 12-Point Nuts
- Parallel-Ground Washers Included
- Black Oxide Finish
- Sold as a kit
- Made in USA
Description: - ARP 2000 Material
- 220,000 PSI Tensile Strength
- Chrome-moly Steel, 12-Point Nuts
- Parallel-Ground Washers Included
- Black Oxide Finish
- Sold as a kit
- Made in USA
Item #: 230-4201
Condition: New
Price: $695.00
2001-2016 Duramax Up Pipe Bolt KitNew
ARP Up Pipe Bolt kit for 2001-2016 Duramax. 6 Washers and Bolts for installing 1 up pipe. Includes ARP Lube.
Purchase two sets when installing a pair of up pipes.
Description: ARP Up Pipe Bolt kit for 2001-2016 Duramax. 6 Washers and Bolts for installing 1 up pipe. Includes ARP Lube.
Purchase two sets when installing a pair of up pipes.
Item #: WCF100240
Condition: New
In Stock. Ships in 3-5 business days.
Price: $37.00
2001-2016 Duramax 2" Stainless Driver Side Up Pipe for OEM or WCFab Manifold with GasketsNew
- Fully TIG Welded 11 GA Stainless Steel Construction
- Heavy Duty 2" Driver Side Up Pipe
- Up Pipe Gaskets (2)
- Made in USA
- Upgraded strength billet C2 Clutch Hub for High Horsepower / Torque Builds
- A must do upgrade for Allison 1000 5 and 6 speed transmissions in trucks making 750+ HP
- 29% more spline wall thick...
Description: - Upgraded strength billet C2 Clutch Hub for High Horsepower / Torque Builds
- A must do upgrade for Allison 1000 5 and 6 speed transmissions in trucks making 750+ HP
- 29% more spline wall...More Details »
- TIG Welded Fabricated Aluminum Cover for Plastic Reservoir
- Utilizes OEM Mounting Points and Hardware
- Installs in minutes with basic hand tools
- Custom Powder Coat Finish
- Made in USA
-...
Description: - TIG Welded Fabricated Aluminum Cover for Plastic Reservoir
- Utilizes OEM Mounting Points and Hardware
- Installs in minutes with basic hand tools
- Custom Powder Coat Finish
- Made in USA
-...More Details »
Item #: WCF100205
Condition: New
WCFab Red, Illusion Purple, Candy Teal, Bengal Blue, Bengal Red, Gloss Black, and Gloss White in stock and ships in 3-5 business days. 10-15 business day lead time on
other colors.
Price: $145.00
2001-2019 Duramax Cognito Stock/Level Front Sway Bar End Link Kit (GM)New691965602646
Front Sway Bar End Link Kit for stock or leveled 2001-2019 Chevrolet and GMC 2500HD / 3500HD 2WD/4WD trucks. Mounting surface to mounting surface measurement for this Kit is 7".
-Stock height or l...
Description: Front Sway Bar End Link Kit for stock or leveled 2001-2019 Chevrolet and GMC 2500HD / 3500HD 2WD/4WD trucks. Mounting surface to mounting surface measurement for this Kit is 7".
-Stock height or...More Details »
Item #: 110-90252
Condition: New
Price: $109.95
2001-2019 Duramax Fox 2.0 Performance Series IFP Rear Shock for 0" to 1" of Rear LiftNew714686856683
- Rear Shock (Single)
- For Stock Height Trucks with 0" to 1" of Rear Lift
Description: - Rear Shock (Single)
- For Lifted Trucks with 7" to 10" of Rear Lift
Item #: 980-24-957
Condition: New
Price: $339.95
2001-2020 Duramax Cognito Alloy Series HD Upper Ball Joint (GM)New720843688820
Upper Ball Joint for Cognito Upper Control Arms on 2001-2020 GM 2500HD / 3500HD 2WD/4WD trucks with OE aluminum and stamped steel control arms.
- Cognito HD Series Upper Ball Joint (GM)
- Hardene...
Description: Upper Ball Joint for Cognito Upper Control Arms on 2001-2020 GM 2500HD / 3500HD 2WD/4WD trucks with OE aluminum and stamped steel control arms.
- Cognito HD Series Upper Ball Joint (GM)
-...More Details »
Item #: 199-90804
Condition: New
Price: $69.95
2001-2023 Duramax Fleece Billet Coolant Block Off PlateNew670875715875
- Fixes coolant leaks common to OE covers over time
- Integral square cut o-ring
- CNC Machined Billet Aluminum Construction
- Made in USA
Description: - Fixes coolant leaks common to OE covers over time
- Integral square cut o-ring
- CNC Machined Billet Aluminum Construction
- Made in USA
Item #: FPE-DMAX-CBOP
Condition: New
Price: $55.00
2001-2024 GM Billet Aluminum Oil Fill Cap, Black AnodizedNew
-CNC Machined Billet Aluminum GM factory oil cap filler neck replacement
-Matches WCFab Billet Aluminum Coolant Tank and Brake Reservoir Caps
-Includes o-ring seal
-Machined cam lock
-Black Ano...
Description: -CNC Machined Billet Aluminum GM factory oil cap filler neck replacement
-Matches WCFab Billet Aluminum Coolant Tank and Brake Reservoir Caps
-Includes o-ring seal
-Machined cam lock
-Clear...More Details »
Item #: WCF100442
Condition: New
In Stock. Ships in 3-5 business days.
Price: $51.00
2003-2007 GM 1500/2500/3500 Fleece All Lights On ModuleNew635909311539
- Installs in minutes
- Allows low beams and fog lamps to stay on when your high beams are active for better nighttime visibility in rural areas
- Low beams and Fogs operate normally when High Be...
Description: - Installs in minutes
- Allows low beams and fog lamps to stay on when your high beams are active for better nighttime visibility in rural areas
- Low beams and Fogs operate normally when High Beams are not on
Item #: FPE-GM-ALO-37
Condition: New
Price: $24.95
2004-2005 LLY Duramax S&B Cold Air Intake KitNew841372036934
- Minimizes air restriction and flow better than stock
- Fully enclosed airbox that protects the filter from dirt and keeps out engine heat
- Available in either 8-layer Cotton Cleanable or Dry E...
Description: - Minimizes air restriction and flow better than stock
- Fully enclosed airbox that protects the filter from dirt and keeps out engine heat
- Available in either 8-layer Cotton Cleanable or Dry Extendable media
Item #: 75-5102, 75-5102D
Condition: New
This Product Cannot Ship to the State of California
Price: $349.00
2004.5-2005 Duramax 5-Speed Allison Transmission EFI Live TCM TuningNew
- EFI Live TCM Tuning for Allison 1000 5 Speed Transmissions
- Better Acceleration
- Quicker Shifts
- Prevents short shifting in performance use
- Improved Torque Converter lock up strategy
- ...
Item #: DT1120010008000Calibrated Power / Duramax Tuner
Description: - EFI Live TCM Tuning for Allison 1000 5 Speed Transmissions
- Better Acceleration
- Quicker Shifts
- Prevents short shifting in performance use
- Improved Torque Converter lock up strategy
-...More Details »
Item #: DT1120010008000
Condition: New
This Product cannot ship to the state of California
Free Ground Shipping
Price: $300.00
2004.5-2005 LLY 4" Stage 2 Intake KitNew
- 4 in. Air Intake
- 14g Aluminum Construction
- 4 in. Dry Air Filter
- Outerwear's Pre-Filter Cover
- 4.8 in. Inlet Aluminum Intake Horn
- Largest Intake Horn on the market
- CNC Machined Ca...
Description: - 4 in. Air Intake
- 14g Aluminum Construction
- 4 in. Dry Air Filter
- Outerwear's Pre-Filter Cover
- 4.8 in. Inlet Aluminum Intake Horn
- Largest Intake Horn on the market
- CNC Machined...More Details »
Item #: WCF100637
Condition: New
Limited Supply
10-15 Business Day Lead Time
This Product cannot ship to the state of California
Price: $579.00
2004.5-2005 LLY Duramax 3" Passenger (Cold) Side Intercooler Pipe KitNew
- 3" Cold Side Intercooler Pipe
- 14 ga. Aluminum Construction
- Silicone Boots
- T-Bolt Clamps
- Compatible with OEM Y-Bridge/Cross Over Pipe
- Flows 56% Better Than Stock!
- NO Tuning Requi...
Description: - 3" Cold Side Intercooler Pipe
- 14 ga. Aluminum Construction
- Silicone Boots
- T-Bolt Clamps
- Compatible with OEM Y-Bridge/Cross Over Pipe
- Flows 56% Better Than Stock!
- NO Tuning...More Details »
Item #: WCF100355
Condition: New
WCFab Red, Gloss White and Gloss Black in stock and ships in 3-5 business days. 10-15 business day lead time on other colors.
This Product cannot ship to the state of California
Price: $294.00
2004.5-2005 LLY Duramax EFI Live Custom Performance ECM TuningNew
- EMISSIONS INTACT Custom Performance Tuning
- Add up to +100 RWHP & +180 lb/ft TQ to your Duramax
- Single Tune Options Available:
- Heavy Tow (8K lbs to GVWR)- +40 RWHP, +72 ft-lbs
- Light To...
Item #: DT1120010001009Calibrated Power / Duramax Tuner
Description: - EMISSIONS INTACT Custom Performance Tuning
- Add up to +100 RWHP & +180 lb/ft TQ to your Duramax
- Single Tune Options Available:
- Heavy Tow (8K lbs to GVWR)- +40 RWHP, +72 ft-lbs
- Light...More Details »
Item #: DT1120010001009
Condition: New
This Product cannot ship to the state of California
Free Ground Shipping
Price: $300.00
2004.5-2005 LLY Duramax 4" Cold Air Intake Kit with Air BoxNew
- 4" Intake Pipe
- 14g Aluminum Construction
- Air Box & Lid Constructed of 10G Aluminum Sheet
- Dry Air Filter
- Outerwear's Pre-Filter Cover
- Includes Installation Hardware
- Silicone Boot...
Description: - 4" Intake Pipe
- 14g Aluminum Construction
- Air Box & Lid Constructed of 10G Aluminum Sheet
- Dry Air Filter
- Outerwear's Pre-Filter Cover
- Includes Installation Hardware
- Silicone Boot...More Details »
Item #: WCF100191
Condition: New
WCFab Red with Standard Brushed Tag and WCFab Grey with Standard Brushed Tag in stock and ships in 3-5 business days. 10-15 business day lead time on other colors.
This Product cannot ship to the state of California
Price: $525.00
2004.5-2005 LLY Duramax 4" Intake Kit with Air Box Stage 2New
- 4" Intake Pipe
- 14g Aluminum Construction
- Air Box & Lid Constructed of 10G Aluminum Sheet
- Dry Air Filter
- Outerwear's Pre-Filter Cover
- Includes Installation Hardware
- 4.8 in. Inlet...
Description: - 4" Intake Pipe
- 14g Aluminum Construction
- Air Box & Lid Constructed of 10G Aluminum Sheet
- Dry Air Filter
- Outerwear's Pre-Filter Cover
- Includes Installation Hardware
- 4.8 in. Inlet...More Details »
Item #: WCF100301
Condition: New
WCFab Red, WCFab Grey, Gloss White, and Gloss Black in stock and ships in 3-5 business days. 10-15 business day lead time on other colors.
This Product cannot ship to the state of California
Price: $799.00
2004.5-2005 LLY Duramax 50 State Compliant EFI Live ECM TuningNew
- EMISSIONS INTACT 50 State Legal Custom Performance Tuning
- California Legal!
- Add up to +100 RWHP & +180 lb/ft TQ to your Duramax
- Includes CARB EO Sticker
- Single Tune Options Available:...
Item #: DT8120010001000Calibrated Power / Duramax Tuner
Description: - EMISSIONS INTACT 50 State Legal Custom Performance Tuning
- California Legal!
- Add up to +100 RWHP & +180 lb/ft TQ to your Duramax
- Includes CARB EO Sticker
- Single Tune Options Available:...More Details »
Item #: DT8120010001000
Condition: New
50 State Compliant CARB EO D-845 #11-10, D-845 #11-11
Free Ground Shipping
Price: $300.00
2004.5-2005 LLY Duramax 750+HP Built TransmissionNew