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Wehrli Custom Fabrication - WCFab » 6.6L Duramax
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- Model: 6.6L Duramax
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Description: Get more done with one haul and enjoy the road while doing it by adding a Kelderman 4-Link Rear Air Suspension!
- Replaces stiff factory leaf springs
- Soaks up harsh bumps and jarring bounces...More Details »
Item #: KELDERMAN 16-19 GM RR AIR SUS
Condition:
New
Please Call for Availability
This product is only Available for Purchase and Installation Through Our Performance Shop.
Description: No leaf springs, no problem. Let Kelderman's 6-8" 4-Link Rear Air Suspension Lift Kit take the bouncing out of your ride and the squatting suspension out of towing.
- Replaces stiff factory leaf...More Details »
Item #: KELDERMAN 16-19 GM 6-8 RR AIR SUS
Condition:
New
Please Call for Availability
This product is only Available for Purchase and Installation Through Our Performance Shop.
Description: - Billet Aluminum Beadroll Adapter Flange connects to outlet (passenger) side of the OEM or aftermarket intercooler with stock clip ring style connections
- Adapts OE slip/clip ring assembly on...More Details »
Item #: WCF205-190
Condition:
New
In Stock. Ships in 3-5 business days.
Price: $59.00
Description: - Fabricated Aluminum Coolant Tank
- Serviceable Low Coolant Level Sensor
- Black Anodized Billet Aluminum Cap
- Over Flow Hose
- Billet Aluminum Coolant Level Sight Glass
- Installation...More Details »
Item #: WCF100433
Condition:
New
WCFab Red, WCFab Grey, Illusion Purple, Bengal Red, Bengal Blue, Flat Black, Gloss Black, and Gloss White in stock and ships in 3-5 business days. 10-15 business day
lead time on
other colors.
Price: $494.00
Description: Adds up to 61 hp, 112 lb-ft
6 power levels adjustable on-the-fly. Interfaces with OBD-II (On-Board Diagnostics) to communicate with the vehicle's ECM. AutoRate uses vehicle data to adjust tune in...More Details »
Item #: 66793
Condition:
New
Price: $889.00
Description: Adds up to 61 hp and 112 lb-ft
6 power levels adjustable on-the-fly. Interfaces with OBD-II (On-Board Diagnostics) to communicate with the vehicle's ECM. AutoRate uses vehicle data to adjust tune...More Details »
Item #: 66692
Condition:
New
Price: $769.00
Description: - 5" aluminized steel constant-diameter DPF-back exhaust system.
- 15% reduction in exhaust temperature 2 feet behind the tip during regen
- Huge patented 6.5" x 7.5" ob-round slash-cut exhaust...More Details »
Item #: 48996, 48996-B
Condition:
New
CARB E.O. Not Required
Price: $549.00
Description: Add an additional +20 hp to your 2017-2019 Duramax
Beats stock and the competition. New over-sized filter element protects engine and outflows competition. Enclosed housing keeps out hot,...More Details »
Item #: 42249-D
Condition:
New
Price: $449.00
Description: - 3.5 in. Cold Side Intercooler Pipe
- Incorporated threaded bung to reinstall OEM Intake Temperature Sensor
- Durable Powder Coat Finish
- Silicone Boot
- T-Bolt Clamps
- O-Rings
- NO Tuning...More Details »
Item #: WCF100530
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: $310.00
Description: - Aluminum intake pipe
- Intake horn
- Air Box & Lid Constructed of 10G Aluminum Sheet
- Includes dry filter
- NO Tuning required, bolt-on
- Will fit on stock truck no other modifications or upgrades necessary
Item #: WCF100360
Condition:
New
WCFab Red, WCFab Grey, Bengal 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: $815.00
Description: - Plug and Play Installation
- Fits Double and Crew Cab Chevy Silverado and GMC Sierra 2500/3500 Diesel
- Includes Mounting Hardware
- Requires Drilling
Item #: 76247-01a
Condition:
New
$12 Flat Rate Fedex Ground Shipping On AMP Research Steps - Continental US Only - Appears as Handling Charge during checkout
Free Ground Shipping
Price: $1,799.99
Description: - EMISSIONS INTACT Custom Performance Tuning
- Add up to +150 RWHP & +270 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 #: DT1160030001001
Condition:
New
This Product cannot ship to the state of California
Free Ground Shipping
Price: $600.00
Description: - 3 in. Hot Side Intercooler Pipe
- 3.5 in. Cold Side Intercooler Pipe
- CNC Machined Flange with Double O-Rings provides an improved sealing surface to eliminate boost leaks.
- OEM Clip Ring...More Details »
Item #: WCF100718
Condition:
New
WCFab Red, WCFab Grey, Candy Teal, Bengal Blue, Bengal 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: $615.00
Description: - 4 in. Aluminum Intake Pipe
- 4 in. Intake Horn with PCV Port and Surge Ring
- Air box enclosure with dry filter assembly and Outerwears pre-filter cover
- Installation hardware, 4 in. silicone...More Details »
Item #: WCF100441
Condition:
New
WCFab Red, WCFab Grey, Illusion Purple, Candy Teal, Bengal 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: $1,429.00
Description: - 4 in. Aluminum intake pipe
- 4 in. Intake horn with PCV port and Surge Ring
- Air box enclosure with dry filter assembly and Outerwears pre-filter cover
- Installation hardware, 4 in. silicone...More Details »
Item #: WCF100403
Condition:
New
WCFab Red and Gloss White 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: $1,745.00
In Stock. Ships in 3-5 business days.
This Product cannot ship to the state of California
Price: $299.00
Description: - Made from thick, 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
-...More Details »
Item #: WCF100133
Condition:
New
10-15 Business Day Lead Time
Price: $499.00
Description: - Pre-Tuned T87A TCM for 6 Speed Allison 1000 Transmission
- Better Acceleration
- Quicker Shifts
- Prevents short shifting in performance use
- Improved Torque Converter lock up strategy
-...More Details »
Item #: DT1160000008001
Condition:
New
This Product cannot ship to the state of California
Price: $775.00
Description: Must Be Installed by an Authorized Dealer
Item #: L5P750+HP
Condition:
New
Please Call for Availability
Description: Must Be Installed by an Authorized Dealer
Item #: L5P750HP
Condition:
New
Please Call for Availability
Description: - Increased diameter over stock - 5/8" hose
- Explosion proof polyester hose protection sleeve
- (3) 5/8" ID transmission lines with AN fittings
- (6) 7/8"-14 O-ring to -10AN fittings
- (2)...More Details »
Item #: FPE-TL-L5P-1719
Condition:
New
Price: $329.99
Description: - Coolant Tank
- Low coolant sensor
- Billet Cap
- Hoses
- Clamps
- Fittings
- Powder Coating
- Made in USA
Item #: WCF100710
Condition:
New
Raw and Gloss Black in stock and ships in 3-5 business days. 10-15 business day lead time for custom color.
Price: $409.00
Description: - Fits L5P Duramax 2017-2019 Short Bed & Long Bed and 2020-2024 Long Bed (except 2023 & 2024 dually)
- Increase fuel filter capacity and amount of time between filter changes
- Anodized billet...More Details »
Item #: WCF100361
Condition:
New
In Stock. Ships in 3-5 business days.
Price: $245.00
Description: -3" Hot Side Intercooler Pipe
-14g Mandrel Bent Aluminum Construction
-Silicone Boots
-T-Bolt Clamps
-Powder Coating
-NO Tuning required, bolt on!
-Will fit on stock truck no other modifications or upgrades necessary!
Item #: WCF100708
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: $332.00
Description: -3 1/2" Intake Horn
-O-Ring
-Mounting studs and nuts
-Powder coating
-NO Tuning required, bolt on!
-Will fit on stock truck no other modifications or upgrades necessary!
Item #: WCF100721
Condition:
New
Limited Supply
WCFab Red, WCFab Grey, Bengal Red, Flat Black, 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: $234.00
Sale: $187.00
Save: 20%
Save: $47.00
Description: -4" Intake Pipe
-Air Box & Lid Constructed of 10G Aluminum Sheet
-Dry Air Filter
-Outerwear's Pre-Filter Cover
-Hardware
-Seal for Connection to Ram Air Port on Hood
-High Quality Silicone...More Details »
Item #: WCF100344
Condition:
New
WCFab Red, WCFab Grey, Illusion Purple, 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: $605.00
Description: -4" Aluminum Intake Pipe
-Silicone Hump Boots
-T-bolt Clamps
-Powder coating
-NO Tuning required, bolt on!
-Will fit on stock truck no other modifications or upgrades necessary!
-Made in USA
Item #: WCF100709
Condition:
New
WCFab Red with Standard Brushed Tag and Gloss Black 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: $225.00
Description: - Minimizes air restriction and flow better than stock
- Available in either 8-layer Cotton Cleanable or Dry Extendable media
Item #: 75-5144, 75-5144D
Condition:
New
This Product Cannot Ship to the State of California
Price: $349.00
Description: -Coolant Pipe
-Silicone Boots
-T-Bolt Clamps
-Powder Coating
Item #: WCF100742
Condition:
New
WCFab Red, WCFab Grey, Illusion Purple, Illusion Blueberry, Bronze Chrome, Candy Teal, Bengal Blue, Bengal Red, Gloss White, and Gloss Black in stock and ships in 3-5
business days. 10-15 business day lead time on other colors.
Price: $156.00
Description: -Your Choice of Custom Exergy Sportsman, 10mm, 12mm, or 14mm CP3 pump specific to this kit
-Billet Aluminum, Black Anodized CP3 Pump Mount Plate
-High Pressure Fuel Line
-High Pressure Rail...More Details »
Item #: WCF100455, WCF100456, WCF100457, WCF100458
Condition:
New
In stock. Ships in 3-5 business days.
This Product cannot ship to the state of California
Price: $2,495.00
NEW!
Description: - Repair broken ECM Connectors
- Replacement Slider / Tabs Kit
- Compatible with 2017-2023 GM L5P Engine Control Modules
Item #: 98108
Condition:
New
Price: $49.53
Sale: $44.58
Save: 10%
Save: $4.95
Description: -Mount Bracket
-Zinc primer & Semi gloss black powder coat finish
Item #: WCF100276
Condition:
New
In Stock. Ships in 3-5 business days.
Price: $62.00
Description: - 8 New Modified Injectors
- Injector Coppers and O-rings
Item #: E02 10710
Condition:
New
This Product cannot ship to the state of California
Price: $4,440.00
Description: - 8 New Modified Injectors
- Injector Coppers and O-rings
Item #: E02 10706
Condition:
New
This Product cannot ship to the state of California
Price: $3,904.00
Description: - 8 New Modified Injectors
- Injector Coppers and O-rings
Item #: E02 10708
Condition:
New
This Product cannot ship to the state of California
Price: $4,120.00
Description: -8 New Injectors
-Modified 100% flow over OEM
-Injector Coppers and O-rings
Item #: L5P-100-SAC
Condition:
New
This Product cannot ship to the state of California
Price: $4,305.60
Description: -8 New Injectors
-Modified 150% flow over OEM
-Injector Coppers and O-rings
Item #: L5P-150-SAC
Condition:
New
This Product cannot ship to the state of California
Price: $4,903.60
Description: -8 New Injectors
-Modified 200% flow over OEM
-Injector Coppers and O-rings
Item #: L5P-200-SAC
Condition:
New
This Product cannot ship to the state of California
Price: $5,501.60
Description: -8 New Injectors
-Modified 50% flow over OEM
-Injector Coppers and O-rings
Item #: L5P-050-SAC
Condition:
New
This Product cannot ship to the state of California
Price: $3,707.60
Description: - Gasket Kit for 2017-2023 L5P / 2019+ L5D Duramax OEM/VGT Turbos
Item #: WCF100178
Condition:
New
In stock. Ships in 3-5 business days.
Price: $145.00
Description: - Replacement injector wire harness pigtail
- Addresses common failure point associated with DTC (P0201-P0208)
- Available individually or in sets of 4 or 8
- Buy more and save!
Item #: FPE-HAR-L5P-INJ-PT, FPE-HAR-L5P-INJ-PT-4P, FPE-HAR-L5P-INJ-PT-8P
Condition:
New
In stock and ships in 3-5 business days when purchasing 8 (FPE-HAR-L5P-INJ-PT-8P).
Price: $59.99
Description: - Airflow to support 700HP*
- *Up to 650 RWHP with Emissions Compliant Tuning and Basic Supporting Mods
- 41 psi Boost @ Sea Level
- Custom Billet 64mm 11-Blade Compressor Wheel - Lightweight...More Details »
Item #: DM1JK1070203000 (2017-2019), DM1MO1070203000 (2020-2023)
Condition:
New
Raw in stock and ships in 3-5 business days. 10-15 business day lead time on powder coat.
This Product cannot ship to the state of California
Price: $3,100.00
Description: - Airflow to support 800HP*
- *Up to 650 RWHP with Emissions Compliant Tuning and Basic Supporting Mods
- HFV (High Flow Vane) Technology - Custom Vane/Nozzle Ring Assembly
- Taller and Wider...More Details »
Item #: DM1JK1070303000, DM1MO1070303000
Condition:
New
Raw in stock and ships in 3-5 business days. 10-15 business day lead time on powder coat.
This Product cannot ship to the state of California
Price: $3,500.00
Description: - Proven to support up to 625 RWHP with stock emissions
- Gain +50hp without any tuning installed on the vehicle
- Works great with box tuners, custom tuning, or without tuning
- Lower average...More Details »
Item #: DM1JK1070103000, DM1MO1070103000
Condition:
New
Raw in stock and ships in 3-5 business days. 10-15 business day lead time on powder coat.
This Product cannot ship to the state of California
Price: $1,950.00
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 #: 230-4301
Condition:
New
Price: $745.00
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
Item #: 230-4302
Condition:
New
Price: $1,995.00
Description: - Fully TIG Welded 11 GA Stainless Steel Construction
- Heavy Duty 2" Driver Side Up Pipe
- Heavy Duty 2" Passenger Side Up Pipe
- Up Pipe Gaskets (4)
- Flows 26% Better than OEM
- NO TUNING REQUIRED
- Made in USA
Item #: WCF100624
Condition:
New
In Stock. Ships in 3-5 business days.
This Product cannot ship to the state of California
Price: $689.00
Description: - MAP Sensor Weld Fitting / Bung for Custom Fabricated Intercooler Piping
- CNC Machined Billet Aluminum
- Made in USA
Item #: WCF205-34
Condition:
New
In Stock. Ships in 3-5 business days.
Price: $29.00
Description: - CNC Machined Billet Aluminum Plug
- Black anodized finish with engraved logo
- NO Tuning required, bolt on!
- Will fit on stock truck no other modifications or upgrades necessary!
Item #: WCF100473
Condition:
New
In Stock. Ships in 3-5 business days.
Price: $31.00
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, EGR flange, and manifold...More Details »
Item #: WCF100226
Condition:
New
In Stock. Ships in 3-5 business days.
This Product Cannot Ship to the State of California
Price: $2,159.00
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, EGR flange, and manifold...More Details »
Item #: WCF100373
Condition:
New
In Stock. Ships in 3-5 business days.
This Product cannot ship to the state of California
Price: $1,574.00
NEW!
Description: - Flows 27% Better than Stock!
- True 4" Inlet Turbo Intake with smooth flowing transition to strategically designed anti-surge face which properly engages into turbo compressor cover for...More Details »
Item #: WCF100775
Condition:
New
WCFab Red and WCFab Grey 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: $259.00
In Stock. Ships in 3-5 business days.
Price: $15.00
Description: - Direct Replacement for OEM Thermostat Housing
- Custom Powder Coat Finish
- Cleans up engine bay appearance
- Completes the look when also running one of our Upper Coolant Pipes
Item #: WCF100188
Condition:
New
WCFab Red, WCFab Grey, Candy Teal, Bengal Red, Gloss White, and Gloss Black in stock and ships in 3-5 business days. 10-15 business day
lead time on other colors.
Price: $179.00
Description: ARP Up Pipe Bolt kit for 2017+ Duramax. 12 Washers and Bolts for installing both up pipes. Includes ARP Lube
Item #: WCF100199
Condition:
New
In Stock. Ships in 3-5 business days.
Price: $60.00
In Stock. Ships in 3-5 business days.
Price: $153.00
Description: - 3.5" Steel Down Pipe
- High Temp Black Ceramic Coat Finish
- Heat Wrap Pre-installed
- Catalyst Back - Emissions Compliant
- NO TUNING REQUIRED!
- Made in USA
Item #: WCF100129
Condition:
New
In Stock. Ships in 3-5 business days.
This Product cannot ship to the state of California
Price: $335.00
Description: The Alpha Series Bumper line is now available for the 2019+ Silverado 4500, 5500, and 6500 trucks. This winch-ready bumper comes standard with 4" light bar cutouts and our signature pockets for...More Details »
Item #: KELDERMAN GM MD ALPHA FRNT
Condition:
New
Please Call for Availability
This product is only Available for Purchase and Installation Through Our Performance Shop.
Description: Get some added protection for the front of your Silverado with a Kelderman Bravo Series Bumper. Available with light bar cutouts and optional clevis hook mounts.
- Modular 3-Piece Design
- Low...More Details »
Item #: KELDERMAN GM MD BRAVO FRNT
Condition:
New
Please Call for Availability
This product is only Available for Purchase and Installation Through Our Performance Shop.
Description: A strong, durable option for the front end of your Silverado with seemingly endless possibilities for customization.
- Modular 3-Piece Design
- Low Profile
- Optional Clevis Hooks
- Optional...More Details »
Item #: KELDERMAN GM MD DELTA FRNT
Condition:
New
Please Call for Availability
This product is only Available for Purchase and Installation Through Our Performance Shop.
