2004 GMC Sierra 2500 HD Performance and Racing Products

Essential 2004 GMC Sierra 2500 HD Performance and Racing Products

Bully Dog – 50-State GT Gas Tuner (Part No.40410)

50-State GT Gas Tuner

from

$469.99
The GT Platinum Gas is four products in one; a vehicle engine tuner, monitor, gauge and diagnostic device all in a single unit. The GT dramatically improves the utility of your vehicle by increasing horsepower, improving fuel economy and providing a comprehensive set of monitoring features and diagnostic functions. This product is incomparable to other tuning products because it has the largest feature set and the widest range of vehicle applications from a single product part number.

Product Features:
  • HEADS UP DISPLAY – Monitor over 15 performance parameters at a glance with a dynamic LCD display mounted on a pillar, window, or dash. User set daytime and nighttime driving modes
  • MULTIPLE PRELOADED TUNES – Access four preloaded tunes with the touch of a few buttons to maximize performance in any situation.
  • CODE CLEARING – Diagnose and clear trouble codes to ensure proper engine operation.
  • Reads and Erases Diagnostic Trouble Codes
  • Display Over 15 Vehicle Parameters
  • Installation Is Easy-10-20 Minutes
  • Free Internet Updates And Upgrades
  • 30 Day Money Back Guarantee
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Bully Dog – GT Platinum Diesel Tuner (Part No.40420)

GT Platinum Diesel Tuner

from

$469.99
The GT Gas and Diesel tuners unlock more horsepower and torque to meet the unique demands you put on your vehicle. With preloaded tuning, customizable gauges to track performance, and a wide variety of hauling and off-roading features, you’ll have plenty of power to take on tough jobs or improved fuel economy for long highway hauls.

Product Features:
  • Track critical performance data in real-time on easy to navigate virtual gauges
  • Select between multiple street-tested, dyno-proven tunes for economy, towing or performance.
  • Reads and clears DTC (Diagnostic Trouble Codes) with ease
  • Manage tire size, gear ratio, speed limiter, speedometer calibrations, shift points, and more. Offering shift-on-the-fly tuning and better control of defueling and regeneration.
  • Product might not be available in all states due to local laws.
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Richmond Gear – Differential Ring And Pinion (Part No.GM105456)

Differential Ring And Pinion

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$185.99
Excel’s broad line of original equipment automotive and light truck/SUV replacement ring & pinion gears, axles, and installation kits offer Richmond’s high OEM quality at affordable prices. The Excel product line covers the most popular vehicles on the road today.

Product Features:
  • Richmond Gear’s EXCel drivetrain products offer high-quality OEM replacement drivetrain products for your vehicle.
  • Richmond Gear’s EXCel line of ring & pinon gearsets provide Richmond quality at affordable prices.
  • EXCel offers a broad line of ring and pinion gears, installation kits, and axle shafts to match most vehicles that are on the road today.
  • EXCel drivetrain products are engineered to exceed OEM specifications by manufacturing to precise specifications in world-class factories, using the latest heat treatment technology, with extensive quality controls throughout.
  • All EXCel drivetrain products are backed by our one year warranty.
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Motive Gear – Performance Differential Ring and Pinion (Part No.G895488IFS)

Performance Differential Ring and Pinion

from

$285.99


Product Features:
  • GM 14BL 9.25 IFS R/P 4.88 FRT
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aFe POWER – Power Module (Part No.77-44006)

Power Module

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$442.99
Power Module

Auto Ventshade (AVS) – Eclipse; Large Hood Scoops (Part No.80001)

Eclipse; Large Hood Scoops

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$123.99
LUND is the first automotive accessory manufacturer to develop and offer comprehensive packages to customize and personalize trucks, SUVs, and vans. An American-based company and the creator of the wrap hood shield category through the invention of the Interceptor hood shield, LUND designs and manufactures the most stylish, high performance, and premium automotive accessories for trucks and SUVs. Product categories include: Interceptor hood protection, nerf bars, running boards, tonneau covers, exterior accessories, storage boxes, cargo management, and bed accessories.

Product Features:
  • Unique, stylized hood scoops for trucks and cars
  • Transform stock hood into a simulated performance hood
  • Can easily be painted to match any factory color
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K&N – Cold Air Intake: Adds Up To 17 Horsepower, With Million Mile Air Filter (Part No.77-3031KP)

Cold Air Intake: Adds Up To 17 Horsepower, With Million Mile Air Filter

from

$399.99
K&N air intake systems are engineered for increased performance, outstanding durability, and sleek aesthetics – and are available in an assortment of finishes and powder coatings. K&N’s state-of-the-art High-Flow Air Filter helps to shield your engine from contaminants, while a meticulously engineered aerodynamic tube design contributes to a guaranteed increase in horsepower and torque. K&N air intake systems are designed to improve acceleration, towing, and throttle response while providing world class protection for your engine. Our intakes are dyno-tested and provide up to 50% more airflow compared to OEM intake systems. K&N intakes are easy to install and maintain with air filter cleaning required only every 100,000 miles.

Product Features:
  • GUARANTEED INCREASE IN HORSEPOWER: Dyno-tested with up to 50% more airflow than restrictive factory box air filter and intake tube
  • BETTER TOWING: Improves acceleration and uphill performance when towing by improving throttle response.
  • IMPROVED ENGINE SOUND: Hear the power under the hood.
  • WORLD CLASS PROTECTION: Pushing the limits of engine protection by protecting your engine from harmful contaminants
  • EASY MAINTENANCE: No filter cleaning required for up to 100,000 miles
  • EASY TO INSTALL: Bolt-on power in less than an hour with basic hand tools. K&N air intake systems are one of the easiest ways to guarantee an increase in horsepower.
  • DYNO TESTED: Dyno-tested for a guaranteed increase in horsepower and acceleration with no ECU tune required
  • HIGH QUALITY: Made in America.
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K&N – Cold Air Intake: Adds Up To 12 Horsepower, With Million Mile Air Filter (Part No.77-3077KP)

Cold Air Intake: Adds Up To 12 Horsepower, With Million Mile Air Filter

from

$399.99
The K&N 77-3077KP high-flow performance air intake system is a free-flowing, mandrel-bent aluminum tube air induction system designed to fit some GMC Sierra 2500/3500 HD and Chevrolet Silverado 2500/3500HD models. The restrictive factory air filter and air intake housing on your vehicle are replaced by this K&N air intake system which is designed to dramatically reduce air flow restriction as it smoothes and straightens air flow. The improved air flow allows your engine to inhale a larger amount of air than it would from the stock air intake. More air means more usable power and acceleration throughout your engine’s RPM range. The 77-3077KP air intake comes with a black rubber topped K&N high-flow air filter and a heat shield that installs into the previous air box space. Air is directed through the intake tube into the engine’s turbo inlet for a guaranteed power gain. The intake tube has an attractive chrome-like finish that’s made to last and it accommodates the factory mass air sensors. The oversized cone shaped air filter can be used for up to 100,000 miles before servicing is needed depending on driving conditions. This air intake is relatively easy to install usually in 90 minutes or less using existing factory mounting points. The tools needed are a screwdriver, ratchet set and some Allen wrenches. Some K&N 77 series air intakes are not legal for sale or use in California and other states adopting California emission standards while others are CARB exempt and 50 state legal. Check the K&N catalog or website for vehicle applications and specific CARB status for each vehicle and air intake.

Product Features:
  • GUARANTEED INCREASE IN HORSEPOWER: Dyno-tested with up to 50% more airflow than restrictive factory box air filter and intake tube
  • BETTER TOWING: Improves acceleration and uphill performance when towing by improving throttle response.
  • IMPROVED ENGINE SOUND: Hear the power under the hood.
  • WORLD CLASS PROTECTION: Pushing the limits of engine protection by protecting your engine from harmful contaminants
  • EASY MAINTENANCE: No filter cleaning required for up to 100,000 miles
  • EASY TO INSTALL: Bolt-on power in less than an hour with basic hand tools. K&N air intake systems are one of the easiest ways to guarantee an increase in horsepower.
  • DYNO TESTED: Dyno-tested for a guaranteed increase in horsepower and acceleration with no ECU tune required
  • HIGH QUALITY: Made in America.
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Energy Suspension – Hyper-Flex System (Part No.3.18128G)

Hyper-Flex System

from

$536.99
Product Features:
  • Incredible Improvement in Control
  • Maintains Proper Caster and Camber Alignment
  • Increase in Handling and Control
  • Greatly Reduce Wheel Hop on Quick Acceleration
  • Even Braking Control is Improved
  • Better Suspension Stability
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K&N – Premium Oil Filter: Ideal for Synthetic & Conventional Oil, Protects Your Engine (Part No.HP-2010)

Premium Oil Filter: Ideal for Synthetic & Conventional Oil, Protects Your Engine

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$17.99
K&N premium oil filters are meticulously engineered to offer outstanding filtration and engine protection. Designed to operate with all synthetic, conventional, and blended motor oils, K&N’s pleated synthetic-blend filtration media helps to shield your en

Product Features:
  • HIGH FLOW RATES: Designed to provide exceptional flow rates and a consistent flow of oil to your engine
  • VERSATILE COMPATIBILITY: Designed to operate with all synthetic, conventional, and blended motor oils
  • PROTECT YOUR ENGINE: Pleated synthetic-blend filtration media removes most harmful contaminants
  • EXTENSIVELY TESTED: Laboratory tested to ensure excellent capacity and burst strength
  • EASY TO REMOVE: Fast and easy Wrench-Off removal
  • HEAVY-DUTY CONSTRUCTION: Heavy-duty canister for outstanding durability
  • HIGH CAPACITY: Withstand the longer service intervals now recommended by some vehicle manufacturers
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K&N – Premium Oil Filter: Ideal for Synthetic & Conventional Oil, Protects Your Engine (Part No.HP-2002)

Premium Oil Filter: Ideal for Synthetic & Conventional Oil, Protects Your Engine

from

$17.99
K&N premium oil filters are meticulously engineered to offer outstanding filtration and engine protection. The heavy-duty canister is engineered to be exceptionally durable, and a one-inch welded hex nut can be used for quick and easy filter removal. Each filter is specifically designed to withstand the service intervals recommended by vehicle manufacturers.
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K&N – Cold Air Intake: Adds Up To 9 Horsepower, With Million Mile Air Filter (Part No.77-3086KTK)

Cold Air Intake: Adds Up To 9 Horsepower, With Million Mile Air Filter

from

$399.99
K&N air intake systems are engineered for increased performance, outstanding durability, and sleek aesthetics – and are available in an assortment of finishes and powder coatings. K&N’s state-of-the-art High-Flow Air Filter helps to shield your engine from contaminants, while a meticulously engineered aerodynamic tube design contributes to a guaranteed increase in horsepower and torque. K&N air intake systems are designed to improve acceleration, towing, and throttle response while providing world class protection for your engine. Our intakes are dyno-tested and provide up to 50% more airflow compared to OEM intake systems. K&N intakes are easy to install and maintain with air filter cleaning required only every 100,000 miles.

Product Features:
  • GUARANTEED INCREASE IN HORSEPOWER: Dyno-tested with up to 50% more airflow than restrictive factory box air filter and intake tube
  • BETTER TOWING: Improves acceleration and uphill performance when towing by improving throttle response.
  • IMPROVED ENGINE SOUND: Hear the power under the hood.
  • WORLD CLASS PROTECTION: Pushing the limits of engine protection by protecting your engine from harmful contaminants
  • EASY MAINTENANCE: No filter cleaning required for up to 100,000 miles
  • EASY TO INSTALL: Bolt-on power in less than an hour with basic hand tools. K&N air intake systems are one of the easiest ways to guarantee an increase in horsepower.
  • DYNO TESTED: Dyno-tested for a guaranteed increase in horsepower and acceleration with no ECU tune required
  • HIGH QUALITY: Made in America.
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K&N – Cold Air Intake: Adds Up To 24 Horsepower, With Million Mile Air Filter (Part No.63-3087)

Cold Air Intake: Adds Up To 24 Horsepower, With Million Mile Air Filter

from

$349.99
The K&N 63-3087 AirCharger air intake system replaces the restrictive factory air filter and air intake housing in some Chevrolet Silverado 2500 HD / 3500 HD and GMC Sierra 2500 HD / 3500 HD models. K&N intakes are designed to dramatically reduce intake restriction as they smooth and straighten air flow. This allows your engine to inhale a larger amount of air than the factory air filter assembly. More air means more usable power and acceleration throughout the engine’s RPM range. The 63-3087 air intake comes with a black metal topped K&N high-flow air filter and a heat shield that installs into the original air box space. Air is directed through an aerodynamically engineered intake tube into the engine’s turbo inlet for a guaranteed power gain. The tube accommodates the factory mass air sensor, humidity sensor and filter minder (where equipped). The oversized cone shaped air filter can be used for up to 100,000 miles before servicing is needed depending on driving conditions. This air intake is relatively easy to install usually in 90 minutes or less using existing factory mounting points. The tools needed are a screwdriver, ratchet set and some wrenches. This air intake cannot be sold in California. It is not legal for use in California or other states adopting California emission standards.

Product Features:
  • GUARANTEED INCREASE IN HORSEPOWER: Dyno-tested with up to 50% more airflow than restrictive factory box air filter and intake tube
  • BETTER TOWING: Improves acceleration and uphill performance when towing by improving throttle response.
  • IMPROVED ENGINE SOUND: Hear the power under the hood.
  • WORLD CLASS PROTECTION: Pushing the limits of engine protection by protecting your engine from harmful contaminants
  • EASY MAINTENANCE: No filter cleaning required for up to 100,000 miles
  • EASY TO INSTALL: Bolt-on power in less than an hour with basic hand tools. K&N air intake systems are one of the easiest ways to guarantee an increase in horsepower.
  • DYNO TESTED: Dyno-tested for a guaranteed increase in horsepower and acceleration with no ECU tune required
  • HIGH QUALITY: Made in America.
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Dynomax – 55509 Exhaust Tail Pipe (Part No.55509)

55509 Exhaust Tail Pipe

from

$187.99
Made from quality materials for durability, DynoMax® pipe is manufactured with precision benders and fixture checked to ensure a precise fit for quick and easy installation.

Product Features:
  • IMPROVED FLOW CAPACITY — Mandrel bends (where applicable) improve flow capacity over traditional bends while increased pipe diameter from OE sizes increases flow and power
  • DESIGNED TO PERFORM — Fixture checked to ensure a precise fit for quick and easy installation
  • AVAILABLE IN DIFFERENT SIZES — Offered in a variety of styles and sizes for a quality vehicle repair
  • PREMIUM MATERIALS – Made from stainless steel for durability and long life
  • BETTER TOGETHER — Use premium DynoMax® accessories when installing DynoMax mufflers and exhaust systems for a complete performance exhaust system upgrade
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Energy Suspension – Transmission Mount (Part No.3.1129G)

Transmission Mount

from

$87.99
A true performance application component for cars, trucks, hot rods, racing/competition, yet popularly used for street vehicles when more horsepower is added. Soft running enough to absorb vibrations for street use yet rugged for racing use. Helps control torque on high performance vehicles. Maintains proper drive shaft angle to help prevent early wear and unexpected power train damage. Replaces the original, short lived and typically too-soft rubber mounts and outdates those hard-running metal transmission mounts. Resistant to under vehicle fluid oils, coolants and road contaminants. Made of Energy’s Hyper-Flex performance polyurethane and heavy duty hardware – for added durability.

Product Features:
  • Unique Safety Interlock Design
  • Impervious to Vehicle Oils and Chemicals
  • Strong Enough Too Handle High Performance
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Energy Suspension – Transmission Mount (Part No.3.1129R)

Transmission Mount

from

$83.99
A true performance application component for cars, trucks, hot rods, racing/competition, yet popularly used for street vehicles when more horsepower is added. Soft running enough to absorb vibrations for street use yet rugged for racing use. Helps control torque on high performance vehicles. Maintains proper drive shaft angle to help prevent early wear and unexpected power train damage. Replaces the original, short lived and typically too-soft rubber mounts and outdates those hard-running metal transmission mounts. Resistant to under vehicle fluid oils, coolants and road contaminants. Made of Energy’s Hyper-Flex performance polyurethane and heavy duty hardware – for added durability.

Product Features:
  • Unique Safety Interlock Design
  • Impervious to Vehicle Oils and Chemicals
  • Strong Enough Too Handle High Performance
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Rancho – Steering Damper Bracket (Part No.RS5548)

Steering Damper Bracket

from

$47.99
Designed to mount a dual steering stabilizer without any modifications, the Rancho® dual steering stabilizer bracket is made of high-strength, low-alloy steel and includes the mounting hardware for easy installation.

Product Features:
  • COMPATIBILITY — Designed for Chevrolet® Silverado and GMC® Sierra 1500, 2500, 3500, Chevy Avalanche 1500, 2500, Chevy Suburban and GMC Yukon with Rancho RS5000® steering stabilizers
  • ENHANCES PERFORMANCE — Protects dual steering stabilizer from contacting other components at full jounce travel ideal for off-roading, towing/hauling and street performance applications
  • RESISTS CORROSION — Durable black powder-coat finish resists rust and corrosion
  • ENGINEERED TO LAST — Features 0.25-in. high-strength, low-alloy steel construction for long life
  • EASY TO INSTALL — Bolts directly to factory steering linkage with included mounting hardware, no modifications needed
  • PRECISION DESIGN — Brackets are CNC cut and bent to exact specifications for a perfect fit
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MagnaFlow – XL DPF Series Filter-Back Exhaust System: Polished Tips, Stainless Steel, Designed for Power & Sound (Part No.16915)

XL DPF Series Filter-Back Exhaust System: Polished Tips, Stainless Steel, Designed for Power & Sound

from

$805.99
The XL DPF Diesel exhaust system features stainless steel construction, a satin finish muffler, and mirror polished welded intercooled tip(s). No hassle emissions legal design.

Product Features:
  • Mandrel Bent Tubing
  • 400 Series Stainless Steel Construction
  • Made in USA
  • Moderate Exterior Sound with Mild Interior Sound
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MagnaFlow – Pro-Series Diesel Performance Exhaust System Kit, Tailpipe Diameter – 4 in. (Part No.17945)

Pro-Series Diesel Performance Exhaust System Kit, Tailpipe Diameter - 4 in.

from

$472.99
If you’re in the market for a replacement exhaust or just want something that offers you a little more power over stock, then look no further than MagnaFlow for your aftermarket exhaust needs. Made of 100% stainless steel and then fully polished to give it that extra shine, our cat-back systems not only perform, but also look good in the process.
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Energy Suspension – Control Arm Bushing Set (Part No.3.3185R)

Control Arm Bushing Set

from

$101.99
For both front and rear of suspensions on cars, trucks and SUVs. Maintains proper alignment under extreme conditions on and off-road and during competition. Improves vehicle handling, cornering and overall control. Full floating for smoother operation. Made of Energy’s Hyper-Flex performance polyurethane to add performance and durability.

Product Features:
  • Maintains Better Alignment While Driving
  • Full Floating and Non Binding
  • Fits Into the Remaining Stock Control Arms
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MagnaFlow – MagnaFlow Direct Fit Muffler Kit – 16999 (Part No.16999)

MagnaFlow Direct Fit Muffler Kit - 16999

from

$393.99
The MagnaFlow D-Fit Performance Exhaust Muffler Replacement Kit With Muffler replaces the restrictive factory muffler of your Truck with fast-flowing mandrel bent tubing, while maintaining the OEM piping and tailpipe. Exhaust Muffler kit features a direct-fit, easy-to-install design and is produced using CNC precision robotic manufacturing techniques. This exhaust system’s durable, corrosion resistant stainless steel construction is backed by MagnaFlow’s warranty.

Product Features:
  • 409 Stainless Steel Construction.

    Product Features:
    • 409 Stainless Steel Construction.
    • Mandrel Bent Stainless Steel Tubing
    • Mirror Finish Polished Stainless Steel Muffler
    • Made in USA
    • Moderate Exterior Sound with Mild Interior Sound
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Flowmaster Inc. – 50 Series Muffler, 3.5in Offset Inlet 3.5in Offset Outlet, Non-Reversible, Moderate Sound (Part No.953558)

50 Series Muffler, 3.5in Offset Inlet 3.5in Offset Outlet, Non-Reversible, Moderate Sound

from

$247.99
Designed primarily for today’s heavy duty gas and diesel trucks, this muffler will deliver improved performance, throttle response and mileage. Featuring a deeper, moderate tone with minimal resonance, it is ideal for trucks with modified engines. Constructed of 16 gauge aluminized steel and fully MIG welded for maximum durability.
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Dynomax – Ultra Flo Muffler: Universal Fit, Stainless Steel, 22" L, 4" In, 4" Out, Round (Part No.17537)

Ultra Flo Muffler: Universal Fit, Stainless Steel, 22" L, 4" In, 4" Out, Round

from

$114.99
DynoMax Ultra Flo Welded performance stainless steel mufflers feature 100-percent welded construction for lifelong durability. The unrestricted, straight-through design dyno proven to flow up to 2,000 SCFM and support up to 2,000 horsepower. Each muffler uses our exclusive Continuous Roving Fiberglass (CRF) Technology to absorb unwanted interior resonance while maintaining a deep performance tone.

Product Features:
  • Stainless steel construction for lifelong protection
  • 100% welded design for maximum durability
  • Straight through design ensures unrestricted exhaust flow and reduces back pressure
  • CRF Technology absorbs unwanted interior resonance while maintaining a deep performance tone
  • Dyno proven to flow up to 2,000 SCFM and support up to 2,000 horsepower.
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Bully Dog – BDX Tuner (Part No.40470)

BDX Tuner

from

$456.99
Bully Dog BDX tuners are bred to sharpen and maximize your rig’s potential to tackle tough terrain, pull heavy payload, and gain the most fuel economy on the highway.

Product Features:
  • Bully Dog gas and diesel programmers are equipped with on-screen gauges, the capability of holding 10 custom tunes, and data logging/monitoring of critical engine parameters. 
  • They also offer cloud-based tune delivery with built-in Wi-Fi for the latest tunes tailored to your rig. 
  • All of this is packed into compact, sleek, handheld designs with full-color, easy-to-use LCD displays.
  • Product might not be available in all states due to local laws.
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Hypertech – REACT Off-Road Throttle Optimizer: Better power delivery for off-road driving on various terrains (Part No.105300)

REACT Off-Road Throttle Optimizer: Better power delivery for off-road driving on various terrains

from

$328.99
The REACT offers fully customizable control over your vehicle’s throttle response. The simple control knob allows you to switch between multiple modes and control the throttle intensity of each mode on-the-fly. The REACT installs easily and is completely plug-and-play, has an automatic setup sequence so no disassembly is required, comes with a magnetic A/C vent mount (Pedestal swivel mount also available – Sold separately at hypertech.com/REACT.aspx), and doesn’t void your factory warranty. Plus the REACT is internet updateable. Three (3) versions of the REACT throttle optimizer are available to fit your particular driving needs… Performance, Off-Road, and Tow.

Product Features:
  • On-The-Fly Adjustments
  • LED Setting Indicators
  • Multiple Levels Of Safety Protection
  • Magnetic A/C Vent Mount Incl. [No Screw Or Tape]
  • Pedestal Swivel Mount Available [Sold Separately]
  • Custom Tuning Software
  • Internet Updateable
  • Easy Plug-N-Play Install
  • Automatic Setup Sequence [No Disassembly Required]
  • Doesnt Void Factory Warranty
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Hypertech – React Throttle Optimizer Off-Road Version – GM (Part No.105402)

React Throttle Optimizer Off-Road Version - GM

from

$328.99
The REACT offers fully customizable control over your vehicle’s throttle response. The simple control knob allows you to switch between multiple modes and control the throttle intensity of each mode on-the-fly. The REACT installs easily and is completely plug-and-play, has an automatic setup sequence so no disassembly is required, comes with a magnetic A/C vent mount (Pedestal swivel mount also available – Sold separately at hypertech.com/REACT.aspx), and doesn’t void your factory warranty. Plus the REACT is internet updateable. Three (3) versions of the REACT throttle optimizer are available to fit your particular driving needs… Performance, Off-Road, and Tow.

Product Features:
  • Internet Updateable
  • Throttle Control
  • Not For Sale Or Use In California
  • Product might not be available in all states due to local laws.
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Hypertech – REACT Towing Throttle Optimizer: Improve the power delivery when you’re towing or hauling (Part No.102402)

REACT Towing Throttle Optimizer: Improve the power delivery when you're towing or hauling

from

$328.99
The REACT offers fully customizable control over your vehicle’s throttle response. The simple control knob allows you to switch between multiple modes and control the throttle intensity of each mode on-the-fly. The REACT installs easily and is completely plug-and-play, has an automatic setup sequence so no disassembly is required, comes with a magnetic A/C vent mount (Pedestal swivel mount also available – Sold separately at hypertech.com/REACT.aspx), and doesn’t void your factory warranty. Plus the REACT is internet updateable. Three (3) versions of the REACT throttle optimizer are available to fit your particular driving needs… Performance, Off-Road, and Tow.

Product Features:
  • On-The-Fly Adjustments
  • LED Setting Indicators
  • Multiple Levels Of Safety Protection
  • Magnetic A/C Vent Mount Incl. [No Screw Or Tape]
  • Pedestal Swivel Mount Available [Sold Separately]
  • Custom Tuning Software
  • Internet Updateable
  • Easy Plug-N-Play Install
  • Automatic Setup Sequence [No Disassembly Required]
  • Doesnt Void Factory Warranty
  • Product might not be available in all states due to local laws.
See More

Hypertech – REACT Towing Throttle Optimizer: Improve the power delivery when you’re towing or hauling (Part No.102300)

REACT Towing Throttle Optimizer: Improve the power delivery when you're towing or hauling

from

$328.99
The REACT offers fully customizable control over your vehicle’s throttle response. The simple control knob allows you to switch between multiple modes and control the throttle intensity of each mode on-the-fly. The REACT installs easily and is completely plug-and-play, has an automatic setup sequence so no disassembly is required, comes with a magnetic A/C vent mount (Pedestal swivel mount also available – Sold separately at hypertech.com/REACT.aspx), and doesn’t void your factory warranty. Plus the REACT is internet updateable. Three (3) versions of the REACT throttle optimizer are available to fit your particular driving needs… Performance, Off-Road, and Tow.

Product Features:
  • On-The-Fly Adjustments
  • LED Setting Indicators
  • Multiple Levels Of Safety Protection
  • Magnetic A/C Vent Mount Incl. [No Screw Or Tape]
  • Pedestal Swivel Mount Available [Sold Separately]
  • Custom Tuning Software
  • Internet Updateable
  • Easy Plug-N-Play Install
  • Automatic Setup Sequence [No Disassembly Required]
  • Doesnt Void Factory Warranty
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2004 GMC Sierra 2500 HD Performance and Racing Products

You count on your 2004 GMC Sierra 2500 HD to run right. That means taking care of it with regular maintenance, necessary repairs, and the right parts. Advance Auto Parts can help with all of that thanks to our extensive inventory of trusted Performance and Racing Products. With 24 Performance and Racing Products ranging in price from $17.99 to $938.99, you’re sure to find everything you need for your 2004 GMC Sierra 2500 HD.

Brands matter. If you want to shop a specific Performance and Racing Products brand, we stock 11 different brands like K&N, Spectre, and Bully Dog. 2004 GMC Sierra 2500 HD Performance and Racing Products start as low as $17.99!

One of the best ways to find top quality OEM or aftermarket Performance and Racing Products is by asking professionals. Short of that, you can shop with confidence thanks to our 1,028 extensive product reviews on 2004 GMC Sierra 2500 HD Performance and Racing Products. Some of the top-rated Performance and Racing Products products we carry are Cold Air Intake Kit Engineered to Add Horsepower & Torque with 4.0 stars.

Did we mention you can order your Performance and Racing Products from our online catalog and have them shipped right to your garage? Or, if you feel like seeing the parts first-hand, search for your nearest Advance Auto Parts location above and pick up in-store when you’re ready. Browse our full Performance and Racing Products inventory for your 2004 GMC Sierra 2500 HD below to get started!

Top-Rated Performance and Racing Products Brands For Your 2004 GMC Sierra 2500 HD

Trusted Performance and Racing Products OEM and aftermarket product brands are what Advance Auto Parts specializes in. The brands we work with are sure to keep that 2004 GMC Sierra 2500 HD running right for years to come. In our inventory you’ll find brands like K&N, Spectre, Bully Dog, and even more.

Popular K&N Performance and Racing Products

You’ll find popular K&N brand products across Performance Air Intake Kits. All are waiting to get your 2004 GMC Sierra 2500 HD back on the road. Some of the top-rated K&N products in these categories are:

FAQs for 2004 GMC Sierra 2500 HD Performance and Racing Products

What are the most purchased Performance and Racing Products for the 2004 GMC Sierra 2500 HD?

Out of 24 Performance and Racing Products for the 2004 GMC Sierra 2500 HD, the most popular in our inventory are:
Cold Air Intake Kit Engineered to Add Horsepower & Torque
from $199.99
(53)
Cold Air Intake Kit Engineered to Add Horsepower & Torque
Engine Cold Air Intakes
BDX Tuner
from $456.99
(1)
BDX Tuner
Computer Chip Programmers
GT Platinum Diesel Tuner
from $469.99
(3)
GT Platinum Diesel Tuner
Performance Computer Prom and Chips

What are the top-rated 2004 GMC Sierra 2500 HD Performance and Racing Products?

Top-rated Performance and Racing Products for your 2004 GMC Sierra 2500 HD based on customer reviews/ratings are:
Cold Air Intake Kit Engineered to Add Horsepower & Torque
from $199.99
(1)
Cold Air Intake Kit Engineered to Add Horsepower & Torque
“I purchased this hoping to gain a little extra HP. I am not sure about HP gain but the first time I drove the truck after installing the filter, my mi”