2004.5-2005 GM 2500HD/3500HD Chips, Modules & Tuners

Enhance your 6.6L Duramax's power potential by installing any of our featured aftermarket Chips, modules and tuners! Give your Cateye additional horsepower, torque and throttle by upgrading your stock PCM with a performance-oriented tuner! With our carefully chosen line of tuners for your LLY, you'll be able to choose how and when your truck makes power, for towing ands hauling, for economy, and daily driving. You'll also improve shifting for enhanced gear-holding and optimized shift pressures, GM 2500HD/3500HD owners can expect an excellent increase in overall performance. Achieve improved injection timing/pulse and fuel rail pressure with a new aftermarket PCM Tuner from Alligator Performance. For even greater added power, check out our selection of Turbo Upgrades.  GM Duramax Fitments: 2004, 2005 GM 6.6L Duramax. Submodel Fitments: WT, Custom, LT, LTZ, High Country, 1LT, 2LT, Pro, SLE, SLT, AT4, Denali. Some exceptions apply, please see individual product pages for specific fitments.

GM Duramax>2004.5-2005 6.6L LLY
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Tuner DT8120010005000 Light Tow Tune Only for EFI Live Spade | 2004.5-2005 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LLY
Tuner DT8120010005000 Light Tow Tune Only for EFI Live Spade | 2004.5-2005 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LLY

Duramax Tuner

Tuner DT8120010005000 Light Tow Tune Only for EFI Live Spade | 2004.5-2005 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LLY

SKU: DMTDT8120010005000
Price
$300
Tuner DT8120010003000 Sport Tune Only for EFI Live Spade | 2004.5-2005 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LLY
Tuner DT8120010003000 Sport Tune Only for EFI Live Spade | 2004.5-2005 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LLY

Duramax Tuner

Tuner DT8120010003000 Sport Tune Only for EFI Live Spade | 2004.5-2005 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LLY

SKU: DMTDT8120010003000
Price
$300
Tuner DT1120010007009 Optimized Stock Tune Only for EFI Live Spade | 2004.5-2005 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LLY
Tuner DT1120010007009 Optimized Stock Tune Only for EFI Live Spade | 2004.5-2005 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LLY

Duramax Tuner

Tuner DT1120010007009 Optimized Stock Tune Only for EFI Live Spade | 2004.5-2005 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LLY

SKU: DMTDT1120010007009
Price
$300
Tuner DT1120010006009 Heavy Tow Tune Only for EFI Live Spade | 2004.5-2005 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LLY
Tuner DT1120010006009 Heavy Tow Tune Only for EFI Live Spade | 2004.5-2005 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LLY

Duramax Tuner

Tuner DT1120010006009 Heavy Tow Tune Only for EFI Live Spade | 2004.5-2005 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LLY

SKU: DMTDT1120010006009
Price
$300
Tuner DT1120010005009 Light Tow Tune Only for EFI Live Spade | 2004.5-2005 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LLY
Tuner DT1120010005009 Light Tow Tune Only for EFI Live Spade | 2004.5-2005 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LLY

Duramax Tuner

Tuner DT1120010005009 Light Tow Tune Only for EFI Live Spade | 2004.5-2005 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LLY

SKU: DMTDT1120010005009
Price
$300
Tuner DT1120010004009 Street Tune Only for EFI Live Spade | 2004.5-2005 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LLY
Tuner DT1120010004009 Street Tune Only for EFI Live Spade | 2004.5-2005 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LLY

Duramax Tuner

Tuner DT1120010004009 Street Tune Only for EFI Live Spade | 2004.5-2005 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LLY

SKU: DMTDT1120010004009
Price
$300
Tuner DT1120010003009 Sport Tune Only for EFI Live Spade | 2004.5-2005 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LLY
Tuner DT1120010003009 Sport Tune Only for EFI Live Spade | 2004.5-2005 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LLY

Duramax Tuner

Tuner DT1120010003009 Sport Tune Only for EFI Live Spade | 2004.5-2005 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LLY

SKU: DMTDT1120010003009
Price
$300
Edge 98655 EAS Shift On The Fly Accessory | 2001-2004 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LB7
Edge 98655 EAS Shift On The Fly Accessory | 2001-2004 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LB7

Edge Products

Edge 98655 EAS Shift On The Fly Accessory | 2001-2004 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LB7

SKU: EDG98655
Price
$299.95
BD Diesel 1081160 Turbo Cool Down Timer Kit v2.0 | 1994-1995 Ram 2500/3500 & 94-18 Ford Powerstroke & 01-14 GM 6.6L Duramax
BD Diesel 1081160 Turbo Cool Down Timer Kit v2.0 | 1994-1995 Ram 2500/3500 & 94-18 Ford Powerstroke & 01-14 GM 6.6L Duramax

BD Diesel

BD Diesel 1081160 Turbo Cool Down Timer Kit v2.0 | 1994-1995 Ram 2500/3500 & 94-18 Ford Powerstroke & 01-14 GM 6.6L Duramax

SKU: BDD1081160
Price
$244.95
Edge 98609 EAS Power Switch w/Starter Kit | Universal
Edge 98609 EAS Power Switch w/Starter Kit | Universal

Edge Products

Edge 98609 EAS Power Switch w/Starter Kit | Universal

SKU: EDG98609
Price
$210.95

2004.5-2005 6.6L Silverado & Sierra 2500HD/3500HD

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