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- Model: Sierra 3500
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HP Tuners Custom Tuning
Description: All SALES OF THIS PRODUCT ARE FINAL. NO REFUNDS, RETURNS, OR EXCHANGES PERMITTED.
An TCM Read File will need to be emailed to sales@underdog-diesel.com with your order number so we can...More Details »
Item #: DSP-GM-HPT-1723-TCM
Condition:
New
Price: $350.00
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
Description: Fits: 2001 thru 2010 Chevy Silverado/GMC Sierra 2500HD/3500HD LB7/LLY/LBZ/LMM & Hummer H2
Item #: DMAX-8026-EXT
Condition:
New
Price: $260.99
Free Shipping - Ground
Description: Fits: 2015 thru 2019 Chevy Silverado/GMC Sierra 2500HD/3500HD LML/L5P Duramax Diesel
Item #: DMAX-8356-EXT
Condition:
New
Price: $263.99
Free Shipping - Ground
Price: $43.99
Item #: DMAX-EOC
Condition:
New
Price: $44.99
Item #: DMAX-BFC-6.6 + DMAX-BDC-2024
Condition:
New
Price: $90.48
Price: $62.99
Item #: DMAX-BFC-6.6LOCK + DMAX-BDC-2024
Condition:
New
Price: $114.93
Item #: DMAX-BFC-6.6LOCK
Condition:
New
Price: $79.99
Item #: DMAXWATERKIT-0616
Condition:
New
Price: $304.99
Item #: DMAX-UBT-0216
Condition:
New
Price: $159.99
Price: $171.08
Head Gasket Kit
Description: Includes
Mahle Upper Engine Gasket Kit
Merchant Automotive Grade C Head Gaskets
DogBone Head Studs
Injector Return Line Seals
Item #: DogBone-LB7-HGK-STUDS
Condition:
New
Price: $875.95
Head Gasket Kit
Description: Includes
Mahle Upper Engine Gasket Kit
Merchant Automotive Grade C Head Gaskets
DogBone Head Studs
Item #: DogBone-LLY/LBZ-HGK-STUDS
Condition:
New
Price: $895.95
Head Gasket Kit
Description: Includes
Mahle Upper Engine Gasket Kit
Merchant Automotive Grade C Head Gaskets
DogBone Head Studs
Item #: DogBone-LMM-HGK-STUDS
Condition:
New
Price: $919.95
Head Gasket Kit
Description: Includes
Mahle Upper Engine Gasket Kit
Merchant Automotive Grade C Head Gaskets
DogBone Head Studs
Item #: DogBone-LML-HGK-STUDS
Condition:
New
Price: $895.95
Head Gasket Kit
Description: Includes
Mahle Upper Engine Gasket Kit
Mahle Grade C Head Gaskets
DogBone Head Studs
Item #: DogBone-L5P-HGK-STUDS
Condition:
New
Price: $999.00
Price: $59.99
Not Available
Price: $20.95
Price: $419.00
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
Description: Replace your broken/cracked factory flexplate with our Heavy Duty Replacement.
Stamped from Cold Rolled Steel with Increased Thickness over OE.
Rated for up to 1000RWHP
Item #: Dogbone-DMAX-FP
Condition:
New
Price: $200.00
Cap for LLY/LBZ/LMM Intake Horn
Description: Fits Stock & WCFAB Intake Horn PCV Provision
Item #: DogBone-1-LLY/LBZ/LMM-CAP-KIT
Condition:
New
Price: $17.89
Sale: $16.10
Save: 10%
Save: $1.79
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
LML Coolant Cap Kit
Description: Replacement for Cheap Vacuum Plugs in 'Fix Kits'
Item #: DogBone-5/16-LML-COOLANT-CAP-KIT
Condition:
New
Price: $9.29
Price: $199.95
Description: Includes 8 Banjo Bolts
5mm Hex Drive
Item #: DogBone-LB7-RTN-BBK
Condition:
New
Limited Supply: Only 8 Left!
Price: $49.95
Description: Includes
- Gaskets
- Up-Pipe Bolts
- Fastener Lube
Item #: DogBone-LB7-P-UPPIPE
Condition:
New
Price: $162.99
Description: OEM Design w/ Washers
Thread Length increased to accommodate washer thickness
-M10x1.5x32 Bolt & Washer
-Lube Pack
-12mm 12pt Drive
Item #: DogBone-UPBK-0116D
Condition:
New
Price: $23.99
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
Price: $299.95
Fuel Injector
Item #: DDP L5P-100
Condition:
New
Price: $3,850.00
Sale: $3,657.50
Save: 5%
Save: $192.50
Fuel Injector
Item #: DDP L5P-50
Condition:
New
Price: $3,650.00
Sale: $3,467.50
Save: 5%
Save: $182.50
Fuel Injector
Item #: DDP L5P-STK
Condition:
New
Price: $365.00
Sale: $346.75
Save: 5%
Save: $18.25
Fuel Injector
Item #: DDP NLB7-200
Condition:
New
Price: $4,715.00
Sale: $4,479.25
Save: 5%
Save: $235.75
Dynomite Diesel Duramax 01-04 LB7 Brand New Injector Set 150 Percent Over SAC Nozzles - DDP.NLB7-300
Fuel Injector
Item #: DDP NLB7-300
Condition:
New
Price: $4,915.00
Sale: $4,669.25
Save: 5%
Save: $245.75
Fuel Injector
Item #: DDP NLB7-50
Condition:
New
Price: $4,115.00
Sale: $3,909.25
Save: 5%
Save: $205.75
Fuel Injector
Item #: DDP NLB7-75
Condition:
New
Price: $4,315.00
Sale: $4,099.25
Save: 5%
Save: $215.75
Fuel Injector
Item #: DDP NLB7-100
Condition:
New
Price: $4,515.00
Sale: $4,289.25
Save: 5%
Save: $225.75
Diesel Fuel Injection Pump
Item #: DDP NCP3-303
Condition:
New
Price: $1,400.00
Sale: $1,330.00
Save: 5%
Save: $70.00
Fuel Injector
Item #: DDP LB7-ECO
Condition:
New
Price: $3,300.00
Sale: $3,135.00
Save: 5%
Save: $165.00
Fuel Injector
Item #: DDP NLB7-STK
Condition:
New
Price: $440.00
Sale: $418.00
Save: 5%
Save: $22.00
Fuel Injector
Item #: DDP LB7-STK
Condition:
New
Price: $345.00
Sale: $327.75
Save: 5%
Save: $17.25
Fuel Injector
Item #: DDP LB7-200
Condition:
New
Price: $4,000.00
Sale: $3,800.00
Save: 5%
Save: $200.00
Fuel Injector
Item #: DDP LB7-300
Condition:
New
Price: $4,200.00
Sale: $3,990.00
Save: 5%
Save: $210.00
Fuel Injector
Item #: DDP LB7-50
Condition:
New
Price: $3,400.00
Sale: $3,230.00
Save: 5%
Save: $170.00
Fuel Injector
Item #: DDP LB7-75
Condition:
New
Price: $3,600.00
Sale: $3,420.00
Save: 5%
Save: $180.00
Fuel Injector
Item #: DDP LB7-100
Condition:
New
Price: $3,800.00
Sale: $3,610.00
Save: 5%
Save: $190.00
Diesel Fuel Injection Pump
Item #: DDP CP3-303
Condition:
New
Price: $935.00
Sale: $888.25
Save: 5%
Save: $46.75
Fuel Injector
Item #: DDP NLLY-200
Condition:
New
Price: $5,550.00
Sale: $5,272.50
Save: 5%
Save: $277.50
Fuel Injector
Item #: DDP NLLY-300
Condition:
New
Price: $5,650.00
Sale: $5,367.50
Save: 5%
Save: $282.50