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GI Service Center » 2003, GMC, Sierra 2500 HD
Products for:
- Year: 2003
- Make: GMC
- Model: Sierra 2500 HD
View Universal items for: 2003 GMC Sierra 2500 HD
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Computer Chip Programmer
Description: Gas Tuner/Monitor - 50 State Legal
Item #: 85350
Condition:
New
Price: $499.95
Computer Chip Programmer
Description: 2001-2016 Chevrolet Silverado/GMC Sierra 2500/3500 - Duramax 6.6L
Item #: 85401-201
Condition:
New
Price: $799.95
Computer Chip Programmer
Description: 1999-2016 GM Vehicles - Gas
Item #: 85450-250
Condition:
New
Price: $749.95
Computer Chip Programmer
Description: Boost your 2001–2016 GM Duramax Silverado/Sierra with the Evolution CTS3. Up to +135 HP & +200 lb-ft torque, towing gains, 50-state legal, touchscreen monitor.
Item #: 85400-200
Condition:
New
Price: $723.95
Vehicle Tuning Flash Tool
Description: 1994-2022 GM/Ford Dodge Vehicles
Item #: 84030
Condition:
New
Price: $326.95
Vehicle Performance Monitor Module
Description: Universal OBD-II Monitoring
Item #: 84130-3
Condition:
New
Price: $499.95
Sale: Add to Cart to see Price
Computer Chip Programmer
Description: 2001-2004 LB7 Duramax
Item #: 21500-3
Condition:
New
Price: $1,299.95
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Description: FASS 01-10 GM 2500/3500 Duramax Flow Enhancer DMAX-7001
Item #: DMAX7001
Condition:
New
Price: $426.55
Description: Fleece 01-04 GM 2500/3500 Duramax LB7 Fuel Injection Line (1 & 8)
Item #: FPE-FL-LB7-18
Condition:
New
Price: $68.99
Description: Fleece 01-04 GM 2500/3500 Duramax LB7 Fuel Injection Line (2 & 7)
Item #: FPE-FL-LB7-27
Condition:
New
Price: $68.99
Description: Fleece 01-04 GM 2500/3500 Duramax LB7 Fuel Injection Line (3 & 6)
Item #: FPE-FL-LB7-36
Condition:
New
Price: $68.99
Description: Fleece 01-04 GM 2500/3500 Duramax LB7 Fuel Injection Line (4 & 5)
Item #: FPE-FL-LB7-45
Condition:
New
Price: $68.99
Description: Fleece 01-04 GM Silverado/Sierra 2500 6.6L-V8 Duramax Truck PowerFlo In-tank Lift Pump
Item #: FPE-PF-GM-0104
Condition:
New
Price: $649.00
Description: Fleece Performance 01-04 GM 2500/3500 6.6L LB7 Duramax SureFlo Performance Sending Unit
Item #: FPE-SF-GM-0104
Condition:
New
Price: $359.00
Description: Fleece Performance 01-04 GM 2500/3500 Duramax (w/Allison Transmission) NSBU Pigtails
Item #: FPE-HAR-GM-NSBU-0104
Condition:
New
Price: $79.99
Description: Fleece Performance 01-04 GM 2500/3500 Duramax LB7 Outer Injector Connector Pigtail
Item #: FPE-HAR-DMAX-LB7-INJ-PT
Condition:
New
Price: $29.99
Description: Ships with installation kit to include a remote oil feed line to extend the line of the #4 cam journal bearing. Includes a stock appearing machined mouthpiece for maximum flow. 60-85rwhp gain on an otherwise maxed out Efllive Tune.
Item #: FPE-LB7-63
Condition:
New
Price: $1,999.00
Description: Inexpensive horsepower upgrade solution for LB7.
Item #: FPE-INTAKEHORN
Condition:
New
Price: $99.75
Description: The Delete is an alternative to the air intake heater.
Item #: FPE-LB7-IAH-DELETE
Condition:
New
Price: $37.95
Description: Fleece Performance 01-04 GM Duramax LB7 Freedom Cylinder Head w/Cupless Injector Bore (Driver Side)
Item #: FPE-61-10001-D-CL
Condition:
New
Price: $1,099.00
Description: Fleece Performance 01-04 GM Duramax LB7 Freedom Cylinder Head w/Cupless Injector Bore (Pssgr Side)
Item #: FPE-61-10001-P-CL
Condition:
New
Price: $1,099.00
Description: Fleece Performance 01-04 LB7 Injection Lines (Complete Set of 8)
Item #: FPE-34611
Condition:
New
Price: $379.05
Description: Fleece Performance 01-05 GM 2500/3500 Duramax Replacement Transmission Line (LB7/LLY) - Short Line
Item #: FPE-TL-LB7-LLY-SHORT-SER
Condition:
New
Price: $75.99
Description: Fleece Performance 01-05 GM 2500/3500 Duramax Replacement Transmission Line (LB7/LMM) - Long Line
Item #: FPE-TL-LB7-LMM-LONG-SER
Condition:
New
Price: $134.99
Description: Fleece Performance 01-05 GM 2500/3500 Duramax Replacement Transmission Line (LB7/LMM) - Medium Line
Item #: FPE-TL-LB7-LMM-MED-SER
Condition:
New
Price: $94.99
Description: Transmission lines, o-rings, zip ties and washers are included in kit.
Item #: FPE-TL-LB7-LLY
Condition:
New
Price: $269.00
Description: Fleece Performance 01-07 GM 2500/3500 Duramax Vane Position Sensor Pigtail (LLY)
Item #: FPE-HAR-DMAX-MAP-0107
Condition:
New
Price: $27.99
Description: Fleece Performance 01-07 GM Duramax/11-16 GM 2500/3500 Duramax Oil Cooler Adapter Kit
Item #: FPE-DMAX-OCADPT
Condition:
New
Price: $99.00
Description: Fleece Performance GM Front TufShafts - Drop in replacement Hy-Tuf axle shafts (2001-2010)
Item #: FPE-TUFSHAFTS
Condition:
New
Price: $945.00
Description: Reinforcement sleeves
Item #: FPE-TIERODSLEEVES
Condition:
New
Price: $79.99
Automatic Transmission Lock-Up Torque Converter Control
Description: 2001-2016 AlliLocker - Allison Torque Converter Controller
Item #: FPE-ALILKR
Condition:
New
Price: $179.00
Description: Every Fleece Performance CP3 is tested on our in-house engine simulator and pump test stand to simulate real world situations and ensure that each pump is ready to work for you!
Item #: FPE-DMAX-CP3K
Condition:
New
Price: $1,299.00
cp3
Item #: FPE-DMAX-CP3-10MM
Condition:
New
Price: $1,999.00
Description: Eliminates the stock coolant feed line.
Item #: FPE-TURBO-THERM
Condition:
New
Price: $37.95
Description: Fleece Performance 01-16 GM 2500/3500 Duramax Billet Oil Cap Cover - Black
Item #: FPE-DMAX-OC-BLK
Condition:
New
Price: $39.99
Description: Fleece Performance 01-16 GM 2500/3500 Duramax Billet Oil Cap Cover - Blue
Item #: FPE-DMAX-OC-BLU
Condition:
New
Price: $39.99
Description: Fleece Performance 01-16 GM 2500/3500 Duramax Billet Oil Cap Cover - Red
Item #: FPE-DMAX-OC-RED
Condition:
New
Price: $39.99
Description: Fleece Performance 01-16 GM 2500/3500 Duramax Multiuse Sensor Pigtail No. 11
Item #: FPE-HAR-MU-PT-11
Condition:
New
Price: $18.99
Description: Fleece Performance 01-16 GM Duramax 2500/3500 Fuel Primer Bulb Sealing Kit
Item #: FPE-GM-FFPD-0116
Condition:
New
Price: $49.99
Description: Fleece Performance 01-16 GM Duramax 6.6L CP3 Adapter Kit w/O-Rings
Item #: FPE-DMAX-CP3-ADPT
Condition:
New
Price: $66.49
6.6L Duramax Billet Coolant Block Off Plate (2001-2025)
Description: Upgrade your rear engine cover and stop the coolant leaks for good!
Our blocking plate is thicker than the stock plate and has an integral square cut O-ring with no gasket required. OE covers...More Details »
Item #: FPE-DMAX-CBOP
Condition:
New
Price: $55.00
Description: Fleece Performance 01-19 GM 2500/3500 34V Duramax Billet Rocker Arm Bridges
Item #: FPE-BRAB-D1
Condition:
New
Price: $512.54
Description: Fleece Performance 01-19 GM 2500/3500 Allison LCT/GM 4T65-E Internal Wire Harn Connector & Seal
Item #: FPE-HAR-GM-LCT-SEAL
Condition:
New
Price: $22.99
Description: 2003-2005 GM/Allison TapShifter
Item #: FPE-TAPSHIFTER35
Condition:
New
Price: $399.00
Description: Fleece Performance 03-10 GM 2500/3500 Duramax 6.6L Oil Pressure Sensor Pigtail
Item #: FPE-HAR-DMAX-OP-0310
Condition:
New
Price: $21.99
Description: WARNING: The spade terminal signal ground is NOT intended to provide a high amperage ground. It is only rated for a signal ground that will control a relay.
Item #: FPE-GM-ALO-37
Condition:
New
Price: $24.95
Description: Fleece Performance 04.5-07 GM Duramax 6.6L LLY/LBZ All Lights On Refill (Pack of 10)
Item #: FPE-ALO-37-REFILL
Condition:
New
Price: $224.60
Description: Fleece Performance 06-10 GM 2500/3500 Duramax 6.6L Fuel Pressure Regulator Wiring Harness
Item #: FPE-HAR-DMAX-FPR
Condition:
New
Price: $69.99
Description: Fleece Performance Duramax Remote Turbo Oil Feed Line Kit for 01-16 6.6L Duramax Turbochargers
Item #: FPE-DTFL-0116
Condition:
New
Price: $99.99
Description: Fleece Performance Duramax Remote Turbo Oil Feed Line Kit for 01-16 Duramax/w 1/4 NPT Oil Inlet
Item #: FPE-DTFL-S3S4-0116
Condition:
New
Price: $99.99
Description: Fleece Performance GM Automatic Transmission 20-Pin Pigtail
Item #: FPE-HAR-GM-AT-20-PT
Condition:
New
Price: $99.99
Description: Fleece Performance Replacement Oil Cooler Adapter O-ring (Use w/ FPE-DMAX-OCADPT)
Item #: FPE-DMAX-OCADPT-ORING-KIT
Condition:
New
Price: $8.99
Description: Fleece Performance Universal Multiuse Sensor 6in Pigtail
Item #: FPE-HAR-MU-PT-5
Condition:
New
Price: $19.99
Brake Fluid Reservoir Cover
Item #: HSP-D-045-HSP-CUST
Condition:
New
Price: $232.75
Brake Fluid Reservoir Cover
Item #: HSP-D-045-HSP-BR
Condition:
New
Price: $185.25
Brake Fluid Reservoir Cover
Item #: HSP-D-045-HSP-CB
Condition:
New
Price: $185.25
Brake Fluid Reservoir Cover
Item #: HSP-D-045-HSP-CR
Condition:
New
Price: $185.25
Brake Fluid Reservoir Cover
Item #: HSP-D-045-HSP-CP
Condition:
New
Price: $185.25
Brake Fluid Reservoir Cover
Item #: HSP-D-045-HSP-GB
Condition:
New
Price: $185.25
Brake Fluid Reservoir Cover
Item #: HSP-D-045-HSP-DG
Condition:
New
Price: $185.25