UnderDog Diesel » 2025, Chevrolet

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Items 1-60 of 189
No Image Available
This item ships Ground regardless of shipping method selected. No exceptions.
Price: $685.00

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No Image Available
This item ships Ground regardless of shipping method selected. No exceptions.
Price: $785.00

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Description: This kit is an upgrade to an existing cheap Kit, this is not a complete kit by itself.
Item #: L5P-COOLANT-BYPASS-UPGRADE
Condition: New
Price: $269.00


Lead Time may Vary
Price: $799.99


Resonator Delete
Description: 3D Printed in House Extra Durable ASA Plastic infused with Carbon Fiber No Tuning Needed
Item #: DogBone-L5P-RES
Condition: New
Price: $19.99
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Oil Filler Neck
Description: This kit is a replacement for aftermarket CCV kits, such as the old JZM, DNA Distributors, SPELAB, VSE Kits. 6.875" Tall, ~ 1" Taller than other kits on the market. (2.5" Taller than the Old JZM Kit) Cam-Lock Cap w/ O-ring Seal
Item #: JZM-L5P-OILFILL-KIT
Condition: New
Not Available
Price: $179.99

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Description: 304SS Polished Finish (This product may ship from Canada, and may be subject to brokerage and duty fees.)
Item #: 17-26-304SS-POLISHED
Condition: New
This item ships Ground regardless of shipping method selected. No exceptions.
Price: $1,625.00

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No Image Available
Description: (This product may ship from Canada, and may be subject to brokerage and duty fees.)
Item #: 17-26-304SS
Condition: New
This item ships Ground regardless of shipping method selected. No exceptions.
Price: $1,369.00

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Description: Filters Included
Item #: VSE-L5P-FSS
Condition: New
Raw Aluminum - 5 business day lead time | Midnight Black - 10-15 business day lead time | Ground shipping only
Price: $478.99


Description: Includes: -Install Kit -Banks Oil Pan with Pre-Installed Oil Drain (If truck is equipped with a lift kit, or you already have an aftermarket Oil Pan, please contact us) -10 Bar MAP Sensor Kit...More Details »
Item #: VSE-17-26-L5P-COMPOUND-KIT
Condition: New
Free Ground Shipping
Price: $7,699.00


Lead time may vary.
Price: $299.00

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No Image Available
This item ships Ground regardless of shipping method selected. No exceptions.
Price: $485.00

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UnderDog Diesel - 2017-2026 L5P Upgrade Kit
No Image Available
Item #: L5P-UPGRADE-KIT
Condition: New
Price: $400.00


No Image Available
This item ships Ground regardless of shipping method selected. No exceptions.
Price: $485.00

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NEW!
Description: Includes : - ARP Manifold Bolt Kit - Gaskets (Turbo, EGR, Manifold) 21% Reduction in Drive Pressure (Higher Flow) +3PSI Boost Pressure +4 LB/M Increase in measured Air Mass +15 Avg. HP...More Details »
Item #: VSE-LM2-LZ0-MANIFOLD
Condition: New
Price: $995.95

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Catch Can Kit
Description: Fits: ALL 2020-2026 6.6L GM Duramax equipped pickup trucks ALL 2020-2026 6.6L GM Duramax equipped cab and chassis models. Works with stock CCV & Aftermarket CCV Kits* *If the truck is a...More Details »
Item #: VSE-20-24-L5P-CC
Condition: New
(Raw - Ships in 3-5 Business Days) (Midnight Black - Estimated 10-15 Business Day Lead Time)
Price: $399.99


NEW!
Description: Aftermarket Charge Piping Required! Will not work with factory piping.
Item #: VSE-L5P-HP-INTERCOOLER
Condition: New
4-6 Week Lead Time
This item ships straight from VSE.
Price: $2,599.95


Description: 47mm x 66mm Compressor (Stock is 42.5mm x 63mm)
Item #: VSE-LM2-LZ0-TURBO
Condition: New
Price: $2,899.99


Raw Aluminum - ships in 3-5 business days. Ground shipping only
Price: $149.99
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Description: Fitment ALL 2020-2026 3.0L GM Duramax equipped 1500 Sierra / Silverado ALL 2020-2026 3.0L GM Duramax equipped SUVs
Item #: LM2-LZ0-CATCH-CAN
Condition: New
Raw Aluminum - 3-5 days to ship. Midnight Black - 10-15 days. Ground shipping only
Price: $399.99


Description: Filters Included
Item #: VSE-LZ0-FSS-301
Condition: New
Raw Aluminum - 5 business day lead time | Ground shipping only / Black (Anodized) - 10-15 business day lead time | Ground shipping only
Price: $478.99


Description: Will NOT fit Pro Model Truck
Item #: UDD-2024-52MM-Mount-D
Condition: New
Price: $85.00
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Description: Will NOT fit Pro Model Truck
Item #: UDD-2024-52MM-Mount-S
Condition: New
Price: $65.00
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Description: Quality Parts and Tuning, not a Cheap Chinese Kit. All Tuning is via the TDN App, no Laptop Required! All SALES OF THIS PRODUCT ARE FINAL. NO REFUNDS, RETURNS, OR EXCHANGES PERMITTED.
Item #: 24-L5P-Performance-Kit
Condition: New
Free Ground Shipping
Price: $4,119.90


Description: - 4-inch, 304 stainless steel mandrel-bent tubing - 5.5-inch, double-wall exhaust tip - Kit comes complete with all hardware required for installation - Available in polished and black ceramic finish
Item #: 117020420
Condition: New
Price: $219.99
Sale: $197.99
Save: 10%
Save: $22.00

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Description: - 4-inch, 304 stainless steel mandrel-bent tubing - 5.5-inch, double-wall exhaust tip - Kit comes complete with all hardware required for installation - Available in polished and black ceramic finish
Item #: 117020430
Condition: New
Price: $199.99
Sale: $179.99
Save: 10%
Save: $20.00

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Description: Fitment Note: Stock Cold Side Piping WCFAB Cold Side Piping (Uses Billet Adapter/Coupler that came with the WCFAB Piping)
Item #: 24-25-TV-UPG-STOCK
Condition: New
Price: $259.99

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Price: $449.99


Raw - 5-7 Business Day Lead Time | Black - 10-20 Business Day Lead Time
Price: $398.99


This item is non-returnable. Sales are final.
Price: $129.00
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Description: 3D Printed in House out of ASA-CF for a durability & heat resistance Pack of 3 Hose Separators for 5/8" Hose
Item #: UDD-5/8-HOSE-SEP-3PACK
Condition: New
Price: $8.99
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Description: Allows for complete removal of the flexible line Caps off the hardline at the frame. Also can be used on the DEF Tank on 20+ Trucks. Truck must be tuned for off-road use only.
Item #: UDD-D49-9.49
Condition: New
Plenty in Stock.
Price: $5.99
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Description: All SALES OF THIS PRODUCT ARE FINAL. NO REFUNDS, RETURNS, OR EXCHANGES PERMITTED. MPVI4 or RTD4 REQUIRED for use with the TDN App, any other model of HP Tuners Device will not work....More Details »
Item #: AITP-HPT-24L5P-SMC
Condition: New
Price: $1,800.00


Description: All SALES OF THIS PRODUCT ARE FINAL. NO REFUNDS, RETURNS, OR EXCHANGES PERMITTED. MPVI4 or RTD4 REQUIRED for use with the TDN App, any other model of HP Tuners Device will not work....More Details »
Item #: AITP-HPT-24L5P-TCM
Condition: New
Price: $350.00


Price: $891.77

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Price: $654.54

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Running Board
Description: PowerStep Plug-N-Play Automatic Power-Deploying Running Boards fits 2022 Chevy Silverado 1500/GMC Sierra 1500 Double/Crew Cab; Includes Gas and Diesel Fits: 2022 Chevrolet Silverado 1500 Crew Cab...More Details »
Item #: 76255-01A
Condition: New
Price: $1,899.99

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MAP Sensor Spacer
Description: Extends MAP Sensor Life Protects sensor from soot buildup Lower & Upper MAP Sensor Relocator FOR 2023-2025 CHEVY/GMC 2500/3500 6.6L L5P This is for both MAP Sensors, if you already have the upper, please purchase 64414
Item #: 64415
Condition: New
Price: $143.33
Sale: $129.00
Save: 10%
Save: $14.33
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MAP Sensor Spacer
Description: Extends MAP Sensor Life Protects sensor from soot buildup Lower MAP Sensor Relocator FOR 2023-2025 CHEVY/GMC 2500/3500 6.6L L5P This is for the lower MAP sensor only. This kit is intended for...More Details »
Item #: 64414
Condition: New
Price: $76.67
Sale: $69.00
Save: 10%
Save: $7.67
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MAP Sensor Spacer
Description: Extends MAP Sensor Life Protects sensor from soot buildup MAP Sensor Relocator FOR 2017-2025 CHEVY/GMC 2500/3500 6.6L L5P
Item #: 64410
Condition: New
Price: $76.67
Sale: $69.00
Save: 10%
Save: $7.67
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Description: Banks iDash Pro, Universal CAN, Stand-Alone for ALL 2008+ OBDII CAN bus vehicles Note: Universal CAN, Stand-Alone Standard 52mm size Mount Not Included, Checkout the 3D Print Tab for our in...More Details »
Item #: 66710
Condition: New
Price: $419.00

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Description: -Huge increase in size and flow over stock and competitors (3.5" vs 2.5") -Hot Side flows 490 CFM @ 12" vs stock 388 CFM -Cold Side flows 635 CFM @ 12" vs stock 435 CFM -Constant 3.5in diameter...More Details »
Item #: 26005
Condition: New
Price: $775.56
Sale: $698.00
Save: 10%
Save: $77.56

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Engine Oil Pan
Description: For 2020-2026 Chevy/GMC 2500/3500 6.6L Diesel L5P If the truck has a lift kit, contact us to verify fitment before purchase.
Item #: 35137-B
Condition: New
Currently on Back Order
Price: $476.67
Sale: $429.00
Save: 10%
Save: $47.67


Description: iDash Pro Required! Not included. DOES NOT WORK WITH IDASH SUPERGAUGE OR DATAMONSTER -Adds 86 hp and 178 lb-ft at the wheels -6 power levels that can be changed on-the-fly via iDash...More Details »
Item #: 67137
Condition: New
Price: $1,086.67
Sale: $978.00
Save: 10%
Save: $108.67

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Description: -Adds 86 hp and 178 lb-ft at the wheels -6 power levels that can be changed on-the-fly via iDash -Interfaces with OBD (On-Board Diagnostics) to communicate with vehicle's ECM -Warranty friendly:...More Details »
Item #: 67128
Condition: New
Price: $1,642.22
Sale: $1,478.00
Save: 10%
Save: $164.22

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Description: -Adds 86 hp and 178 lb-ft at the wheels -6 power levels that can be changed on-the-fly via iDash -Interfaces with OBD (On-Board Diagnostics) to communicate with vehicle's ECM -Warranty friendly:...More Details »
Item #: 67108
Condition: New
Price: $1,553.33
Sale: $1,398.00
Save: 10%
Save: $155.33

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Turbo Inlet Horn, Intake Manifold
Description: The Banks Monster-Ram Turbo Inlet for the 2017-2025 Duramax L5P is the only intake elbow that outperforms stock without the destructive effects of turbo surge. More than a year in development, the...More Details »
Item #: 42792-N
Condition: New
50-State Emission Compliant CARB-EO D-161-158
Price: $321.11
Sale: $289.00
Save: 10%
Save: $32.11

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Turbo Inlet Horn, Intake Manifold
Description: The Banks Monster-Ram Turbo Inlet for the 2017-2025 Duramax L5P is the only intake elbow that outperforms stock without the destructive effects of turbo surge. More than a year in development, the...More Details »
Item #: 42792-R
Condition: New
Limited Supply: Only 3 Left!
50-State Emission Compliant CARB-EO D-161-158
Price: $332.22
Sale: $299.00
Save: 10%
Save: $33.22

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Throttle Assist
Description: PedalMonster, Throttle Sensitivity Booster for use with existing iDash and/or Derringer for 2020+ GM 2500/3500HD
Item #: 64311
Condition: New
Price: $354.44
Sale: $319.00
Save: 10%
Save: $35.44

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Description: For 2020-2026 Chevy/GMC 2500/3500 6.6L Diesel with 10 speed Allison 10L1000 Transmission Will NOT work with AEV skid plates.
Item #: 35148-B
Condition: New
Price: $476.67
Sale: $429.00
Save: 10%
Save: $47.67


Cold Air Intake
Description: Fits 2025-2026 L5P Removes restrictions, sharpens turbo response, and improves fuel economy.
Item #: 42297-D
Condition: New
Price: $550.00
Sale: $495.00
Save: 10%
Save: $55.00


Cold Air Intake
Description: Fits 2025-2026 L5P Removes restrictions, sharpens turbo response, and improves fuel economy.
Item #: 42297
Condition: New
Price: $550.00
Sale: $495.00
Save: 10%
Save: $55.00


NEW!
Description: - New Turbo Actuator for 2024-2026 L5P Duramax OEM/VGT Turbos
Item #: CPS206-117
Condition: New
Price: $649.00


Description: - Airflow Capable of Supporting up to 700HP - Custom Billet Compressor Wheel - Turbine Wheel and Nozzle Ring Upgrades - Improved EGT Control - Compressor and turbine wheel durability upgrades...More Details »
Item #: CPS200289
Condition: New
Price: $3,149.00


Description: - Airflow capable of supporting up to 750HP - Compressor and Turbine Wheel durability upgrades - Black Anodized Custom Billet Compressor Wheel - Turbine Wheel and Nozzle Ring Upgrades - 67mm -...More Details »
Item #: CPS200329
Condition: New
Price: $3,549.00


Description: - Extra airflow to make 80-100rwhp over 'Tune only' L5P - Works with box tuners, custom tuning, or without tuning - Major EGT control improvements compared to stock - 62.5mm - 7+7 Blade Extended...More Details »
Item #: CPS200157
Condition: New
Price: $2,149.00


NEW!
Description: - CNC Precision Machined Black Anodized Billet Aluminum Plate - Clean, Professional Appearance - Made from the highest-quality materials - Intelligent design - Swivel Air Chuck Fitting Improves...More Details »
Item #: CPS200614
Condition: New
Price: $99.00
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Description: Easy Installation No trimming is required to install if leaving off the factory mud guards Mild steel silver zinc plating for corrosion resistance 30-minute DIY install time Made in the USA...More Details »
Item #: 110-91193
Condition: New
Price: $99.95
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Description: L5P CP3 Conversion Kit with 10mm CP3 pump.
Item #: D06-C10-146
Condition: New
Price: $3,250.00
Sale: $3,217.50
Save: 1%
Save: $32.50

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Items 1-60 of 189

View Universal items for: 2025, Chevrolet