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UnderDog Diesel » 2025
Products for:
- Year: 2025
View Universal items for: 2025
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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
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
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
Banks Power Pedal Monster Throttle Sensitivity Booster for Use w/ Exst. iDash - 2020+ GM 2500/3500HD
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
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
Pitman Arm Support
Item #: 110-90772
Condition:
New
Price: $259.95
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
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
Description: L5P CP3 Conversion Kit with 12mm CP3 pump.
Item #: D06-C12-146
Condition:
New
Price: $3,750.00
Sale: $3,712.50
Save: 1%
Save: $37.50
Description: L5P CP3 Conversion Kit with 14mm CP3 pump.
Item #: D06-C14-146
Condition:
New
Price: $4,250.00
Sale: $4,207.50
Save: 1%
Save: $42.50
EZ Lynk Custom Tuning
Description: Included is a full support package for your 20-25 6.7L Powerstroke, this includes many files to suit your build.
Trans Tuning Included!
All SALES OF THIS PRODUCT ARE FINAL. NO REFUNDS,...More Details »
Item #: DSP-FORD-EZLYNK-2025
Condition:
New
This product cannot ship to California.
Price: $1,150.00
NEW!
HP Tuners Custom Tuning
Description: All SALES OF THIS PRODUCT ARE FINAL. NO REFUNDS, RETURNS, OR EXCHANGES PERMITTED.
This is for Global B Vehicles ONLY! Requires E66 Unlock Service
-MVPI3 / MVPI4 or RTD required for...More Details »
Item #: DSP-GM-HPT-21-26-LM2/LZ0
Condition:
New
Price: $1,000.00
HP Tuners Custom Tuning
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 #: DSP-GM-HPT-24
Condition:
New
Price: $1,100.00
HP Tuners Custom Tuning
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 #: DSP-GM-HPT-24-TCM
Condition:
New
Price: $350.00
Description: Tuning Required
Now with Flush Flange at the Turbocharger
Item #: 255-01301
Condition:
New
Price: $335.00
Item #: 255-04604
Condition:
New
Price: $749.99
Description: Universal Fitment
Fits 4" Systems
20" Length
Item #: 355-03400
Condition:
New
Price: $150.00
Description: Universal Fitment
Fits 5" Systems
20" Length
Item #: 355-03500
Condition:
New
Price: $180.00
Description: Universal Fitment
Fits 4" Systems
20" Length
Item #: 555-03401
Condition:
New
Price: $175.00
Description: Universal Fitment
Fits 5" Systems
20" Length
Item #: 555-03501
Condition:
New
Price: $205.00
Price: $299.00
Item #: DMAX-BFC-6.6 + DMAX-BDC-2024
Condition:
New
Price: $90.48
Description: Same tensile strength as ARP, at a more affordable price.
Item #: DogBone-HSK-17D
Condition:
New
Limited Supply: Only 3 Left!
Price: $419.00
Cap for L5P Intake Horn
Description: Fits L5P Intake Horn PCV Provision
Item #: DogBone-7/8-L5P-CAP-KIT
Condition:
New
Price: $17.89
L5P Coolant Cap Kit
Description: Replacement for Cheap Vacuum Plugs in 'Fix Kits'
Item #: DogBone-1/4-L5P-COOLANT-CAP-KIT
Condition:
New
Price: $8.49
Description: -M8-1.25 thread size, 30mm thread length
-220+ KPSI tensile strength
-12-point bolt head
-Black oxide finish
-Lube Pack
Item #: DogBone-UPBK-L5P
Condition:
New
Price: $23.99
Fuel Filter
Item #: FL-D-P550943
Condition:
New
In Stock!
Price: $17.50
Description: -5.5" touchscreen with 21% more viewing area
-3.4X the processing power of the CTS3
-4X the RAM for better performance
-70% faster startup
-60 FPS display for smoother gauges
-Physical buttons...More Details »
Item #: 84130-4
Condition:
New
Available for Pre-Order, Orders begin Shipping November 3rd, 2026.
Price: $599.95
Price: $14.99
Diagnostic Tool
Item #: 100EE00AA3
Condition:
New
Price: $549.00
Item #: 100EE00C23
Condition:
New
Price: $49.99
NEW!
Description: Please Note: THIS IS NOT A LIFT PUMP! This is an air separation/filtration system that utilizes your factory in-tank lift pump.
The DIFSFRD1001 Fits: 2017-2026 Ford F-250, F-350 & F-450 Super...More Details »
Item #: DIFSFRD1001
Condition:
New
Price: $525.26
Sale: $499.00
Save: 5%
Save: $26.26
Dedicated Fuel Systems
Item #: DIFSL5P2001
Condition:
New
Price: $504.21
Sale: $479.00
Save: 5%
Save: $25.21
Pigtail
Item #: FPE-HAR-CUMM-ALT-0722
Condition:
New
Price: $20.99
Item #: FPE-FMC-UHFA-1123
Condition:
New
Price: $199.00
NEW!
Description: ** IMPORTANT ** This product is not a filter and does not include a provision for a fuel filter. For the under hood filter kit (FPE-FMC-UHFA-1123)
Item #: FPE-FMC-FFB-1124
Condition:
New
Price: $156.44
Sale: $148.99
Save: 5%
Save: $7.45
NEW!
Item #: FPE-FL-RC-FMC-14P
Condition:
New
Price: $78.74
Sale: $74.99
Save: 5%
Save: $3.75
Description: 2020+ L5P Fuel Filter Upgrade Kit For Short Bed Applications and 2024 Regular Cab Long Bed Applications
Item #: FPE-L5P-FFBA-20
Condition:
New
Price: $249.00
Item #: FPE-L5P-MAP-SPR
Condition:
New
Price: $68.99
Item #: FPE-L5P-MAP-SPR-24
Condition:
New
Price: $68.99
Item #: FPE-FMC-TH-1125
Condition:
New
Price: $89.99
Engine Harmonic Balancer
Description: Fluidampr has released an updated Performance Diesel crankshaft damper for 2011-2026 Ford 6.7L Power Stroke engines, p/n 800241. The new design supersedes p/n 800221 and incorporates several...More Details »
Item #: 800241
Condition:
New
Price: $730.32
Sale: $620.77
Save: 15%
Save: $109.55
Description: Ready to tune your 2018+ Dodge vehicle? The Dodge Smart Access cable enables read, write, and special functions for tuning and diagnostics using VCM Suite software.
Item #: H-002-01
Condition:
New
Price: $89.00
Description: Tune your 2024-2026 Silverado/Sierra 2500/3500 with the 6.6L L5P Duramax (E42 ECM) now using HP Tuners’ VCM Suite! This service is required to upgrade the E42 ECM in these diesel trucks for...More Details »
Item #: ECM-E42-L5P-U
Condition:
New
Lead Time is 7-12 Business Days once HP Tuners receives your ECM (not including shipping)
A shipping form will be emailed to you after purchase. Please ensure correct email at checkout to prevent further delays. You are responsible for shipping to HP Tuners.
Price: $999.99
Description: HP Tuners is now offering support for the GM Global B E66 ECM found in various 2021+ GM vehicles powered by the 3.0L Duramax engine (LM2 and LZ0 generations, models listed below). This one-time,...More Details »
Item #: ECM-GB-E66-U
Condition:
New
Lead Time is 7-12 Business Days once HP Tuners receives your ECM (not including shipping)
A shipping form will be emailed to you after purchase. Please ensure correct email at checkout to prevent further delays.
Price: $799.99
Description: HP Tuners is thrilled to offer support for the GM Global B T93 TCM found in various GM vehicles equipped with the GM 10L80 10-speed transmission. This upgrade service is required to enable...More Details »
Item #: TCM-GB-T93-UO
Condition:
New
Lead Time is 10-12 Business Days once HP Tuners receives your TCM (not including shipping)
A shipping form will be emailed to you after purchase. Please ensure correct email at checkout to prevent further delays.
Price: $399.99
Item #: HSP-D-602-2-HSP-RAW
Condition:
New
Ships in 3 - 4 Weeks / Unless Informed Otherwise
Price: $575.00
Sale: $546.25
Save: 5%
Save: $28.75
Item #: HSP-D-600-2-HSP-RAW
Condition:
New
Ships in 1 - 2 Weeks / Unless Informed Otherwise
Price: $290.00
Sale: $275.50
Save: 5%
Save: $14.50
Item #: HSP-D-605-2D-HSP-Raw
Condition:
New
Ships in 2 - 3 Weeks / Unless Informed Otherwise
Price: $320.00
Sale: $304.00
Save: 5%
Save: $16.00
Description: - 5/16" Hose Barb
- High Temp O-Ring
- Billet 6061 Aluminum
Item #: JRS-2020-L5P-TCF
Condition:
New
In stock. Order by 2PM EST for guaranteed same day shipping M-F.
Price: $45.00
Description: - 5/16" Hose Barb
- High Temp O-Ring
- Billet 6061 Aluminum
- 39" Hose
Item #: JRS-2020-L5P-TCFA
Condition:
New
In stock. Order by 2PM EST for guaranteed same day shipping M-F.
Price: $55.00
This does carry a lead time currently.
Price: $699.00