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- Year: 2021
- Make: Chevrolet
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Description: Fits; 2020-2025 Chevy/GMC 2500HD/3500 TRUCKS and Much More
Item #: KRSBEL26
Condition:
New
Price: $169.99
Sale: $161.49
Save: 5%
Save: $8.50
Description: Fits; 2011-2025 CHEVY/GMC 2500/3500 HD
Item #: ULTIMATE11
Condition:
New
Price: $1,499.99
Sale: $1,424.99
Save: 5%
Save: $75.00
Description: Fits; 2011-2025 Chevy/GMC Truck 2500HD/3500 With Aftermarket Bolt on Ball Joint Style Control Arms ONLY!
Item #: 1119BJPACK-2
Condition:
New
Price: $199.99
Sale: $189.99
Save: 5%
Save: $10.00
Description: Fits; 2011-2025 Kryptonite and Cognito Upper Control arms ONLY!
*Will not fit FTS Arms, or Stock control arms.
Item #: KRBUCA11
Condition:
New
Price: $59.99
Sale: $56.99
Save: 5%
Save: $3.00
Description: Fits; Kryptonite Upper Control Arms for the 2011-2025 GM 2500HD-3500 Trucks
Item #: PB67548, PB67547
Condition:
New
Price: $19.98
Sale: $18.98
Save: 5%
Save: $1.00
Description: Fits; 2020-2025 Chevy/GMC 2500/3500 HD Truck
Item #: KRUCA20
Condition:
New
Price: $699.99
Sale: $664.99
Save: 5%
Save: $35.00
Description: Fits; 2011-2025 Chevy/GMC 2500/3500 HD Truck
Item #: KR1025
Condition:
New
Price: $9.99
Sale: $9.49
Save: 5%
Save: $0.50
Description: Fits; Most all 8 Lug GM Trucks (Front end) from 2011-2024
Item #: KRP0179
Condition:
New
Price: $12.99
Sale: $12.34
Save: 5%
Save: $0.65
Description: Actuator Included
Airflow to support 700HP
Up to 650 RWHP with stock emissions equipment and basic supporting mods
Tested in competition setups with extensive supporting mods to make 700+ RWHP
41 psi boost @ Sea Level
Item #: DM1MO1070203010
Condition:
New
Price: $3,700.00
Sale: $3,330.00
Save: 10%
Save: $370.00
Description: Actuator Not Included
Airflow to support 700HP
Up to 650 RWHP with stock emissions equipment and basic supporting mods
Tested in competition setups with extensive supporting mods to make 700+ RWHP
41 psi boost @ Sea Level
Item #: DM1MO1070203000
Condition:
New
Price: $3,100.00
Sale: $2,790.00
Save: 10%
Save: $310.00
Description: Actuator Included
Airflow to support 800HP
Up to 650 RWHP with stock emissions equipment and basic supporting mods
Tested in competition setups with extensive supporting mods to make 800+ RWHP
Item #: DM1MO1070303010
Condition:
New
Price: $3,975.00
Sale: $3,577.50
Save: 10%
Save: $397.50
Description: Does not include Actuator
Airflow to support 800HP
Up to 650 RWHP with stock emissions equipment and basic supporting mods
Tested in competition setups with extensive supporting mods to make 800+ RWHP
Item #: DM1MO1070303000
Condition:
New
Price: $3,500.00
Sale: $3,150.00
Save: 10%
Save: $350.00
Description: -Actuator Included
-Proven to support up to 625 RWHP with stock emissions
-Extra airflow to make 80-100rwhp over 'Tune only' L5P
-Works great with box tuners, custom tuning, or without tuning...More Details »
Item #: DM1MO1070103010
Condition:
New
Price: $2,650.00
Description: -Actuator Not Included
-Proven to support up to 625 RWHP with stock emissions
-Extra airflow to make 80-100rwhp over 'Tune only' L5P
-Works great with box tuners, custom tuning, or without...More Details »
Item #: DM1MO1070103000
Condition:
New
Price: $1,950.00
Price: $69.00
Exhaust Tail Pipe Tip
Description: Tip 6in OD 5in Inlet 15.5in Length 30° Bend Black-Coated Stainless Steel. Note: Cutting May Be Required for Installation.
Item #: T5154BLK
Condition:
New
Not Available
Exhaust Tail Pipe Tip
Description: Tip 6in OD 5in Inlet 15.5in Length 30° Bend T304 Stainless Steel. Note: Cutting May Be Required for Installation.
Item #: T5154
Condition:
New
Not Available
Engine Coolant Thermostat
Description: Low Temperature Thermostats (set of 2), fits Chevrolet/GMC 6.6L Duramax 2001-2016
Item #: MMTS-CHV-01DL
Condition:
New
Price: $112.00
Sale: $101.95
Save: 9%
Save: $10.05
Engine Coolant Thermostat
Description: High Temperature Thermostats (set of 2), fits Chevrolet/GMC 6.6L Duramax 2001-2016
Item #: MMTS-CHV-01DH
Condition:
New
Price: $110.00
Sale: $99.95
Save: 9%
Save: $10.05
Automatic Transmission Oil Cooler
Description: Transmission Thermal Bypass Valve Kit, fits Chevrolet/GMC 6.6L Duramax L5P 2017+
Item #: MMTC-L5P-TBV
Condition:
New
Price: $163.00
Sale: $147.95
Save: 9%
Save: $15.05
Description: Made in America
Uses OEM Connector
Uses OEM Pins
100% Sealed
LIFETIME WARRANTY
Item #: USCANLM2
Condition:
New
Price: $139.99
Description: Made in America
Uses OEM Connector
Uses OEM Pins
100% Sealed
LIFETIME WARRANTY
Item #: USCAN2D
Condition:
New
Price: $169.99
Description: Tuning Required
Item #: PDW-0623-DMAX-GEK
Condition:
New
Price: $159.99
Electronic Throttle Controller
Description: Pedal Commander throttle response controller with Bluetooth support. You can adjust your gas pedal sensitivity with 36 different modes. It will help your Chevrolet Colorado to accelerate faster!
Item #: PC07-OG
Condition:
New
Price: $299.99
Electronic Throttle Controller
Description: Pedal Commander throttle response controller with Bluetooth support. You can adjust your gas pedal sensitivity with 36 different modes. It will help your Chevrolet Silverado 1500 to accelerate faster!
Item #: PC77
Condition:
New
Price: $299.99
Electronic Throttle Controller
Description: Pedal Commander throttle response controller with Bluetooth support. You can adjust your gas pedal sensitivity with 36 different modes. It will help your Chevrolet Silverado 2500 HD to accelerate faster!
Item #: PC77
Condition:
New
Price: $299.99
Electronic Throttle Controller
Description: Pedal Commander throttle response controller with Bluetooth support. You can adjust your gas pedal sensitivity with 36 different modes. It will help your Chevrolet Silverado 3500 HD to accelerate faster!
Item #: PC77
Condition:
New
Price: $299.99
Exhaust
Item #: 117020200
Condition:
New
Price: $199.99
Sale: $179.99
Save: 10%
Save: $20.00
Exhaust Manifold Kit
Description: Significant reduction in exhaust back-pressure
Lower EGTs, better turbo efficiency and fuel economy
Sil-moly cast iron construction
Two-inch Free-Flow up-pipes with sleeved bellows
Up-pipes...More Details »
Item #: 116112500
Condition:
New
Price: $1,499.99
Sale: $1,349.99
Save: 10%
Save: $150.00
Exhaust Manifold Kit
Description: Significant reduction in exhaust back-pressure
Lower EGTs, better turbo efficiency and fuel economy
Sil-moly cast iron construction
Two-inch Free-Flow up-pipes with sleeved bellows
Up-pipes...More Details »
Item #: 116112520
Condition:
New
Price: $1,689.99
Sale: $1,520.99
Save: 10%
Save: $169.00
Exhaust Manifold Kit
Description: Significant reduction in exhaust back-pressure
Lower EGTs, better turbo efficiency and fuel economy
Sil-moly cast iron construction
Two-inch Free-Flow up-pipes with sleeved bellows
Up-pipes...More Details »
Item #: 116112535
Condition:
New
Price: $1,689.99
Sale: $1,520.99
Save: 10%
Save: $169.00
Engine Oil Pan
Item #: 114052201
Condition:
New
Price: $19.99
Sale: $17.99
Save: 10%
Save: $2.00
Item #: 116112583
Condition:
New
Price: $39.99
Sale: $35.99
Save: 10%
Save: $4.00
Price: $39.99
Sale: $35.99
Save: 10%
Save: $4.00
Air Inlet Elbow
Item #: 115020370
Condition:
New
Price: $439.99
Sale: $395.99
Save: 10%
Save: $44.00
Air Inlet Elbow
Item #: 115020360
Condition:
New
Price: $439.99
Sale: $395.99
Save: 10%
Save: $44.00
Description: Trucks equipped with factory rear height sensors require additional part number 88-31190-1.
Not compatible with ZR2 option.
If AT4/Trail Boss or if vehicle is lifted in rear, add spacer kit...More Details »
Item #: 88-31190
Condition:
New
Price: $549.95
Description: Fits 2020-2024 GM 2500 w/o Overload Springs
~6400LBS Load Leveling Capacity at 150PSI
Confirmed 5th Wheel Hitch Compatibility:
OEM Puck System
GNRK1020
Will not fit AT4X
Item #: 88-32200
Condition:
New
Price: $799.95
Description: Fits 2020-2024 GM 2500/3500 w/ Overload Springs
~6400LBS Load Leveling Capacity at 150PSI
Confirmed 5th Wheel Hitch Compatibility:
OEM Puck System
GNRK1020
For use with factory overload...More Details »
Item #: 88-33200
Condition:
New
Price: $899.95
Suspension Leaf Spring Block Kit
Description: GM 2500HD/3500HD OEM Style 1" Rear Lift Block Kit Fits 2011-2024 GM HD trucks. Includes new longer u-bolts and hardware OEM style cast iron construction.
NOTE: Not intended for vehicles equipped...More Details »
Item #: 66-3111
Condition:
New
Price: $149.95
Suspension Lift Kit
Description: Big Lift Kit 4 in. Lift
Item #: 44-39420
Condition:
New
Not Available
Suspension Lift Kit
Description: Big Lift Kit 6 in. Lift
Item #: 44-39615
Condition:
New
Not Available
![ReadyLift - ReadyLift Big Lift Kit 6 in. Lift [6 in. + 2 in.] For AT4 And Trail Boss - 44-39620](https://underdog-diesel.com/images/T198667124.jpeg)
Suspension Lift Kit
Description: Big Lift Kit 6 in. Lift [6 in. + 2 in.] For AT4 And Trail Boss
Item #: 44-39620
Condition:
New
Not Available
Suspension Lift Kit
Description: Big Lift Kit 8 in. Lift w/ARC
Item #: 44-39810
Condition:
New
Not Available
Suspension Lift Kit
Description: Big Lift Kit w/Shocks 6 in. Lift Rear Falcon 1.1 Monotube Shocks
Item #: 44-39605
Condition:
New
Not Available
Suspension Lift Kit
Description: Big Lift Kit w/Shocks 6 in. Lift Rear w/Bilstein Shocks
Item #: 44-3960
Condition:
New
Not Available
Suspension Lift Kit
Description: Big Lift Kit w/Shocks 6 in. Lift w/Falcon 1.1 Monotube Shock w/o Factory Air
Item #: 44-19601
Condition:
New
Not Available
Suspension Lift Kit
Description: Big Lift Kit w/Shocks 6 in. Lift w/Falcon 1.1 Shocks
Item #: 44-30620
Condition:
New
Not Available
Suspension Lift Kit
Description: Big Lift Kit w/Shocks 6 in. Lift w/Rear Bilstein Shocks
Item #: 44-3965
Condition:
New
Not Available
Suspension Lift Kit
Description: Big Lift Kit w/Shocks 6 in. Lift w/Rear Falcon 1.1 Monotube Shocks
Item #: 44-39600
Condition:
New
Not Available
Suspension Lift Kit
Description: Big Lift Kit w/Shocks 6 in. Lift w/SST3000 Shocks
Item #: 44-30601
Condition:
New
Not Available
Suspension Lift Kit
Description: Big Lift Kit w/Shocks 8 in. Lift w/Falcon 1.1 Shocks
Item #: 44-30820
Condition:
New
Not Available
Suspension Lift Kit
Description: Big Lift Kit w/Shocks 8 in. Lift w/SST3000 Shocks
Item #: 44-30801
Condition:
New
Not Available
Suspension Lift Kit
Description: Big Lift Kit w/Shocks 8 in. Lift w/Upper Control Arms And Rear Bilstein Shocks
Item #: 44-3985
Condition:
New
Not Available
Suspension Lift Kit
Description: Big Lift Kit w/Shocks 8 in. Lift w/Upper Control Arms And Rear Bilstein Shocks 4 WD
Item #: 44-3980
Condition:
New
Not Available
Suspension Lift Kit
Description: Big Lift Kit w/Shocks 8 in. Lift w/Upper Control Arms And Rear Falcon 1.1 Monotube Shocks
Item #: 44-39805
Condition:
New
Not Available
Suspension Lift Kit
Description: Big Lift Kit w/Shocks 8 in. Lift w/Upper Control Arms Rear Falcon 1.1 Monotube Shocks
Item #: 44-39800
Condition:
New
Not Available
Leaf Helper Spring
Description: Block And Add-A-Leaf Kit 4 in. Blocks Incl. U-Bolts Fits: 2011-15 SILVERADO/SIERRA 2500HD/3500HD-4in. Block kit and U-Bolt
Item #: 26-3204
Condition:
New
Not Available
Leaf Helper Spring
Description: Block And Add-A-Leaf Kit 5 in. Blocks Incl. U-Bolts Fits: 2011-16 SILVERADO/SIERRA 2500HD/3500HD-5in. Block kit and U-Bolt
Item #: 26-3205
Condition:
New
Not Available
Suspension Control Arm
Description: Control Arm Fabricated Upper
Item #: 44-3035
Condition:
New
Not Available