2005 GMC Sierra Performance Chips & Programmers

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    • (8 reviews)
      # 53057606
      GMC Sierra 2005, Trinity Programmer by DiabloSport®. HP Gain: Up To 15. TQ Gain: Up To 15. This hi-res color screen programmer plugs in to any vehicle’s OBD II port to remap ECU operation for increased power and mileage. The...
      Windshield suction cup mounting bracket includedFeatures performance enhancing levels custom tuned for Economy, Performance, Towing, and Extreme Performance for modified vehicles
      $599.95
    • (1 review)
      # 69411477
      GMC Sierra 2005, InTune I2 Programmer by DiabloSport®. If you are a horsepower junky and you need a fix, look no further. DiabloSport’s inTune i2 Performance Programmer is an easy way to boost power without even popping the hood!...
      New "Easy Tune" mode for simple installationDyno tested performance programs
      $399.95
    • (0 reviews)
      # 61248282
      GMC Sierra 2005, Computer Chip Performance Programmer by JET®. The Speedo Pro Programmer is designed for the driver who has changed tire size or gear ratios, or both, and wants to correct the speedometer and automatic shift points...
      Clear any engine diagnostic codesCorrect the speedometer and automatic shift points
      $337.49
    • (0 reviews)
      # 13555076
      GMC Sierra 2005, Dynamic Spectrum Tuner by JET®. Designed for the performance enthusiast who wants total control of their vehicle's programming, the JET Dynamic Spectrum Tuner is a powerful tuning package. JET’s DST software...
      Fuel parameters including power enrichment and volumetric efficiencyIgnition tables including spark advance versus load, knock retard and more
      $399.99 - $524.99
    • (0 reviews)
      # 13548474
      GMC Sierra L33 Engine / LR4 Engine with Overdrive 2005, EZ-Tune Programmer by JET®. EZ Tune Programmer is the economy version of the full Performance Programmer and is designed for the driver who only wants to change engine tuning...
      User friendly programming procedureRead and clear factory diagnostic trouble codes (turn off check engine light)
      $262.46
    • (6 reviews)
      # 172946884
      GMC Sierra 2005, GT Platinum Programmer by Bully Dog®. The GT Platinum 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...
      Four products in one remarkable unitInstallation is extremely easy and takes no more than 20 minutes
      $429.00 - $449.00
    • (0 reviews)
      # 202007247
      GMC Sierra Diesel 2005, Juice with Attitude CTS2 Programmer by Edge®. Featuring a sleek new look and state-of-the-art technology, the Attitude CTS2 sets the standard for power, control, and style. The Attitude CTS2 is an in-cabin...
      Slim, Sleek Case Design2.4" Full-Color, High Resolution, Button-Control Screen
      $999.95
    • (0 reviews)
      # 202016865
      GMC Sierra 2005, Evolution CS2 Programmer by Edge®. Edge’s Evolution CS is a crowd favorite so why “fix something if it isn’t broken?” Believe us when we tell you, we didn’t, we just made it that much better! The...
      Offers performance-enhancing software revisions designed specifically for fuel economy, towing, semi-aggressive performance, and aggressive performanceSlim, Sleek Case Design
      $449.95 - $499.95
    • (1 review)
      # 72765199
      GMC Sierra 2005, Evolution CTS2 Programmer by Edge®. Innovation and quality are part of Edge’s DNA. The Evolution CTS2 has no peer in the marketplace and is designed for “WOW”! As an in-cabin controller and programmer the...
      Offers performance-enhancing software revisions designed specifically for fuel economy, towing, semi-aggressive performance, and aggressive performanceSlim, Sleek Case Design
      $599.95 - $679.95
    • (1 review)
      # 82114560
      GMC Sierra 2005, Evolution HT2 Performance Tuner by Edge®. Designed utilizing the latest technology, this programmer also offers a host of innovative features listed below. Internet Updateable. Speedometer Correction. Reads and...
      Available in Gasoline- or Diesel-specific applicationsPrograms your vehicle’s engine control computer to let you increase power for maximum performance on the street, or while towing
      $389.95
    • (1 review)
      # 1683404
      GMC Sierra 2005, Max Energy Programmer by Hypertech®. The Max Energy Programmer series provides high levels of power and economy for gasoline engines, with specific tuning applications geared for regular unleaded gasoline and E-85...
      Designed for enhanced engine performanceOffers excellent fuel economy
      $329.00
    • (0 reviews)
      # 62684073
      GMC Sierra 2005, HyperPAC Programmer by Hypertech®. The HyperPAC, Hypertech’s Performance Automotive Computer, allows you to power tune your vehicle for more horsepower and torque, perform runs just like you’re at the drag...
      Performance tuningDrag Strip
      $634.84
    • (1 review)
      # 51930244
      GMC Sierra 2005, Flashpaq F5 Series Performance Tuner by Superchips®. Designed utilizing the latest technology, this programmer also offers a host of innovative features listed below. Internet Updateable. Reads and Clears...
      High-definition, 2.8" color screenRedesigned graphic interface for improved user experience
      $369.95
    • (0 reviews)
      # 187809272
      GMC Sierra 2005, AutoMind™ Programmer by Banks®. Pre-Loaded Power Right Out Of The Box. Calibrations were developed with Power And Increased MPG In Mind. Speedometer Calibration Based On Tire Size or Gear Ratio. Read And Clear...
      Diesel or GasChoose power level (diesel)
      $368.68
    • (0 reviews)
      # 79449927
      GMC Sierra Diesel 2005, Six-Gun Tuner Performance Module by Banks®. Internet Updateable. Increases Horsepower And Torque. Adjustable On The Fly. Exhaust Gas Temperature Limiting Control. Turbo Overspeed Protection. Six-Gun Diesel...
      Airflow upgrades recommended to achieve claimed powerPlug-and-play install in an hour or two
      $616.97 - $979.00
    • (1 review)
      # 13555088
      GMC Sierra with Overdrive 2005, Performance Module by JET®. The Speedo Pro Programmer is designed for the driver who has changed tire size or gear ratios, or both, and wants to correct the speedometer and automatic shift points...
      Clear any engine diagnostic codesCorrect the speedometer and automatic shift points
      $242.96 - $250.46
    • (0 reviews)
      # 122356308
      GMC Sierra 2005, Livewire TS Performance Programmer and Monitor by SCT Performance®. Recalibrate your vehicle’s computer for better performance with the iTSX/TSX Wireless Programmer. It comes pre-loaded with performance tune...
      Recalibrates your vehicle’s computer to maximize performance, develop more power and torque, and increase fuel mileageArrives pre-loaded with dyno-proven tune files
      $599.00
    • (0 reviews)
      # 122356313
      GMC Sierra 2005, SCT X4 Series Power Flash Programmer by SCT Performance®. Pre-Loaded.The SCT X4 Power Flash Programmer provides your PowerStroke with pre-loaded, dyno-proven power! From the factory, your vehicles computer is...
      Increase horsepower, torque, increased throttle response, firmer shifts and even increased fuel mileageBuilt-in WIFI connectivity attaches to your local wireless network for easy device updates
      $399.00
    • (0 reviews)
      # 187833074
      GMC Sierra Regular Cab / Extended Cab / Crew Cab Diesel / Gas 2005, Flashpaq by aFe®. Simple Plug and Play Tuning, Digital Color 4.3" Touch Screen Display, Customizable Gauges, Reads and Clears Trouble Codes, Backup Camera Capable,...
      High-definition, 2.8" color screenRedesigned graphic interface for improved user experience
      $395.00
    • (0 reviews)
      # 134326949
      GMC Sierra 2500 HD Diesel 2005, Scorcher HD Module by aFe®. HP Gain: +60 hp. TQ Gain: +90 lbs. x ft.. Gain horsepower, broaden your power curve and reduce turbo lag in just 30 minutes. That's how little time it takes to install the...
      Increases horsepower and torqueIncreases fuel mileage
      $445.00
    • (0 reviews)
      # 187809279
      GMC Sierra Exclude Cab & Chassis 2005, Hand Held iQ Flash Monitor by Banks®. Internet Updateable. Faster GPS Refresh Rate. Bluetooth hands-free phone / streaming Audio. Control Banks Electronic SpeedBrake. Take complete control of...
      5.0” (diagonal) widescreenFingerprint resistant oleophobic coating
      $741.88
    • (1 review)
      # 79449840
      GMC Sierra Diesel 2005, iQ Dashboard PC by Banks®. Provides Dynamic Link Between Driver and Vehicle. Rock-Solid Windows® CE Foundation. Up To 13 Different Operating Modes. 5" Full Color Touch Screen Display. On Screen Alerts. The...
      For Use w/Banks iQ Dashboard PCFull Featured GPS navigation
      $398.00 - $495.94
    • (0 reviews)
      # 79449914
      GMC Sierra Diesel 2005, SpeedBrake Braking System by Banks®. Uses the Banks IQ controller to interface with the SpeedBrake. Imagine setting your "comfort zone" and cutting downhill speed by nearly 80% without even touching the...
      Maintains downhill speed automaticallyNo extra hardware to install
      $496.74 - $874.84
    • (0 reviews)
      # 187816910
      GMC Sierra Diesel 2005, EFILive Custom ECM Tuning by Fleece Performance®. Tuning is simply the act of making a number of mechanical components work in harmony. AutoCals all come loaded with two tunes. Each Fleece Performance tune...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $499.00 - $849.00
    • (0 reviews)
      # 202007241
      GMC Sierra 2005, Insight CS2 Monitor by Edge®. Specially created to provide the ultimate level of vehicle, the CS monitor plugs in to any OBD II compatible vehicle port. Fault codes and check engine lights can be diagnosed and...
      This unit is a monitor only and does NOT offer software reprogramming to enhance engine performanceSpecifically designed for gasoline engines
      $299.95
    • (0 reviews)
      # 72765229
      GMC Sierra 2005, Insight CTS2 Monitor by Edge®. Specially created to provide the ultimate level of vehicle, the CTS monitor plugs in to any OBD II compatible vehicle port. Fault codes and check engine lights can be diagnosed and...
      This unit is a monitor only and does NOT offer software reprogramming to enhance engine performanceFull width 5" color monitor serves as display and features touch-screen controls
      $429.95
    • (0 reviews)
      # 202024172
      GMC Sierra Allison Transmission 2005, Co-Pilot Conversion Kit by ATS Diesel Performance®. Converting your GM Duramax with the Allison transmission from a 5 speed to a 6 speed will lower rpms going down the highway and will allow...
      Control over converter lockupPush button control
      $1,116.25
    • (0 reviews)
      # 71993573
      GMC Sierra 2005, Co-Pilot Torque Converter Lock-Up Controller by ATS Diesel Performance®. The ATS Co-Pilot transmission controller is recommended for use with light duty pickup trucks with a heavy-duty aftermarket transmission and...
      Control over converter lockupPush button control
      $617.50
    • (0 reviews)
      # 56790968
      GMC Sierra 4L60-E Transmission / 4L80-E Transmission 2005, Perfect Torc Transmission Controller by Painless Performance®.
      Ensures outstanding driving performanceMade to provide fuel economy
      $645.99
    • (0 reviews)
      # 87552504
      GMC Sierra 4-Speed 2005, EZ-TCU™ GM Overdrive Transmission Controller by TCI®.
      $637.54
    • (0 reviews)
      # 13548475
      GMC Sierra L33 Engine / LR4 Engine with Overdrive 2005, Speedo Pro Programmer by JET®. The Speedo Pro Programmer is designed for the driver who has changed tire size or gear ratios, or both, and wants to correct the speedometer and...
      Clear any engine diagnostic codesCorrect the speedometer and automatic shift points
      $217.46
    • (0 reviews)
      # 13555097
      GMC Sierra with Overdrive 2005, Speedometer Calibrator by JET®. JET Performance Accu-Speed interacts with the vehicle speed sensor on late model GM, Ford, Dodge, and Jeep trucks and SUVs. It connects to the transmission to allow...
      Designed to modify speed sensor output readingsConnects to the transmission output speed sensor
      $149.96
    • (0 reviews)
      # 62684076
      GMC Sierra 2005, Speedometer Calibrator Programmer by Hypertech®. This cost-effective module corrects speedometer and odometer readings when non-stock tires or gear ratios are installed. The module comes without a hand-held monitor...
      Designed for any OBD II compatible gasoline or diesel powered vehiclePrograms vehicle ECU to correctly calculate and display speedometer and odometer readings when non-stock size tires are equipped on vehicle
      $229.00 - $311.39
    • (0 reviews)
      # 72209781
      GMC Sierra 2005, ACCU Pro Speedometer Calibrator by Pro Comp®. 1 per Pack. This calibration tool is the first of its kind. Compact and easy to use, the ACCU PRO calibration tool plugs directly into your vehicle’s diagnostic port....
      Accu Pro is easy to installTire gauge has 2" diameter gauge face
      $205.99
    • (0 reviews)
      # 202016179
      GMC Sierra Diesel 2005, Insight Pro CS2 Monitor by Edge®. Specially created to provide the ultimate level of vehicle, the CS monitor plugs in to any OBD II compatible vehicle port. Fault codes and check engine lights can be...
      This unit is a monitor only and does NOT offer software reprogramming to enhance engine performanceSpecifically designed for gasoline engines
      $449.95
    • (0 reviews)
      # 144621542
      GMC Sierra Diesel 2005, Insight Pro CTS2 Monitor by Edge®. Specially created to provide the ultimate level of vehicle, the CS monitor plugs in to any OBD II compatible vehicle port. Fault codes and check engine lights can be...
      This unit is a monitor only and does NOT offer software reprogramming to enhance engine performanceSpecifically designed for gasoline engines
      $579.95
    • (0 reviews)
      # 74339246
      GMC Sierra Diesel 2005, Dash Pod by Edge®. The Edge Dash Pod houses any Attitude, Evolution or Insight unit and allows dashboard mounting for an original OEM look. The Insight CTS requires an additional adaptor piece sold...
      Secures Attitude, Evolution and Insight units and any applicable adapter pieces in place on your dashboard at eye level for easy useDesigned to match the exact contours of your vehicle for an even fit that looks OEM
      $50.00
    • (0 reviews)
      # 71990103
      GMC Sierra 2005, Attitude Visor Mount by ATS Diesel Performance®. Includes: Switches. Angled Bracket. To Mount your Edge Products attitude in the overhead compartment in your truck.
      Single piece of brushed aluminumSwitches can be used for any accessories
      $68.83
    • (0 reviews)
      # 202024141
      Universal High Idle Valet Switch by PPE®. This product allows for the engine idle to be set at 3 predetermined points (between 750 rpm and 1,800 rpm) to facilitate faster engine warm-ups, electrical system charging or even having...
      Includes dash panel insert and harnessDesigned to deliver trouble-free, consistent performance
      $53.99
    • (0 reviews)
      # 87353289
      GMC Sierra 2005, FlashScan V2 Device by EFILive®. Providing monitoring capabilities for vehicle parameters, this product is a must for those who want to get the most of the overall performance of their auto. This product is...
      Ensures monitoring of vehicle parametersMade to boost performance of your auto
      $1,792.48 - $3,361.88
    • (0 reviews)
      # 148953098
      GMC Sierra 4L60-E Transmission / 4L80-E Transmission 2005, Shift Boss Package with Pressure Sensor by TCI®. Designed utilizing the latest technology, this product by TCI features premium quality and will perform better than...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $149.46 - $256.91
    • (0 reviews)
      # 87353281
      GMC Sierra Duramax Engine 2005, Main Girdle Kit by EFILive®. Designed utilizing the latest technology, this product by EFILive features premium quality and will perform better than advertised. Perfect for your vehicle and...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $364.62 - $862.50
    • (0 reviews)
      # mpn580055087
      Universal Temperature Module by Hypertech®. These Hyperpac Temperature Modules measure exhaust gas temperature (EGT) and display the information on your Hyperpac performance computer screen. These kits contain software, the...
      Developed to keep the EGT at approximately 1350 degrees Fahrenheit, even when towing maximum loads.Easy Installation
      $345.55
    • (0 reviews)
      # 172937740
      Universal PowerPack System by Banks®. The Banks Power Motorhome PowerPack System is the ultimate in added power for your vehicle. This is a plug-and-play pre-set module with a set of Banks DynaFact Gauges. To purchase this unit...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $1,388.65 - $1,935.36
    • (0 reviews)
      # mpn2102163594
      GMC Sierra 2005, Advantage III Series Pro Racer Software by SCT Performance®. You've always wanted to tune your car yourself. Advantage III Pro Racer software from SCT Performance gives you the tools to custom-tune and tweak your...
      Automatic On-Line software updates via the internetSCT's Dealer Technical Support is the best in the industry
      $349.00
    • (0 reviews)
      # 122355243
      Universal SCT Eliminator Single Multi Program Switch Chip by SCT Performance®. SCT's single program and 5 program, four bank custom chips are specifically tuned for your car or truck by one of SCT's Custom Tuning dealers world wide.
      Available as a single or multi-program switch chipEasily switch between custom tunes using the optional Dial Selector
      $269.00 - $383.50
    • (0 reviews)
      # 172937852
      Universal Profec Boost Controller by GReddy®. The new PRofec is compact, powerful and easy to use. The large OLED Display, with the simple two-button / rotary-dial control, make for intuitive operation. An ultra slim controller can...
      The OLED map sensor can take a pressure until 300kPa (3.0bar)Simple to set as a manual boost control and features electronic response
      $408.50
    • (0 reviews)
      # mpn457999787
      Universal Speed Limiter Cut Controller by GReddy®. It is a general-purpose product that can be used for domestic cars of MT equipped except for the CAN communication vehicle. 140 km/h and 180 km/h it can be to release the speed...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and racing lifestyle
      $64.60
    • (1 review)
      # 172937794
      Universal e-Manage Ultimate by GReddy®. The GReddy e-manage Ultimate is as close to a stand-alone management system as you can get while maintaining the best features of a "piggy-back" engine management; an economical price, the...
      (Dip) Toggle Switch - 2 independent setting can now be stored and accessed via the “Toggle Switch.” 2 separate maps for the “Injection Adjustment Map” and the “Ignition Map.” (For Rotary engines, 2 separate “Primary and Secondary Injector Maps” and “Leading & Trailing Ignition Maps.”) i.e. one program for “street” and one for “race track”.Serial port - External data (like “GReddy Warning Meters”, and other future optional products) can be monitored and recorded in real time through a data link cable.
      $589.00
    • (0 reviews)
      # mpn2656926927
      Universal Dynamics Module by AEM®. The AEM Vehicle Dynamics Module (VDM) is an AEMnet CANbus enabled device with an on-board 3-axis accelerometer, 3-axis gyrometer and 5Hz GPS + GLONASS that provides pinpoint position accuracy. The...
      GPS latitude & longitude delivers AEMdata track map functionality via AEMnet CANbusEasily Add GPS, lateral G, altitude, pitch and roll data to engine data logs!
      $375.00
    • (0 reviews)
      # 63479962
      Universal 4-Channel K-Type Thermocouple Amplifier by AEM®. Get laboratory-grade accuracy for critical vehicle system temperatures like oil, air, coolant, disc brake, etc. with the 4-Channel K-Type Thermocouple Amplifier. Unlike...
      Guaranteed laboratory-grade temperature accuracy, even at the extremes of the temperature rangeAllows accurate monitoring of critical vehicle system temperatures like oil, air, coolant, disc brakes, etc
      $325.62
    • (0 reviews)
      # 57824349
      Universal X-WiFi Wideband Air / Fuel Controller and EGT Monitor by AEM®. This versatile tool allows you to monitor and control AFR and EGT (EGT sensors sold separately) and access the data on your iPhone or iPod Touch via wireless...
      Allows you to use your smart phone as an ancillary AFR and EGT gaugeAccurately monitors AFR (one bank) and EGTs (up to 2 banks)
      $366.83
    • (0 reviews)
      # mpn458132573
      Universal Auxbox Multi-Sensor Device Datalogger by Innovate Motorsports®. The AuxBox attaches to the auxiliary input of the LM-1 or it can be integrated into the MTS serial chain. The AuxBox has 5 built-in sensors. The 5 internal...
      $182.17
    • (0 reviews)
      # mpn458132583
      Universal OT-2/LC-2 OBD-II and Wideband AFR WiFi Interface by Innovate Motorsports®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in...
      Expertly crafted from premium materialsDesigned to match rigorous quality standards
      $241.80
    • (0 reviews)
      # 172937735
      Universal Banks iQ™ iQ Monitor and Mount by Banks®. The Banks Power iQ Dashboard PC is the perfect upgrade for the Banks Diesel Tuner and/or Speedbrake. This is the top-of-the-line in user interface contols on the market today....
      For Use w/Banks iQ Dashboard PCFull Featured GPS navigation
      $29.94 - $308.00
    • (0 reviews)
      # 172937789
      Universal EFI Chip by Edelbrock®. Designed utilizing the latest technology, this product by Edelbrock features premium quality and will perform better than advertised. Perfect for your vehicle and lifestyle, it is manufactured to...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $78.46 - $92.80
    • (0 reviews)
      # 132242971
      Universal ELII System Meters Meter Control Unit by APEXi®. The EL II System Meters are the newest addition to the EL Meters lineup. The 60mm System Meters utilize a main control unit which constantly monitors the movement of all of...
      Manufactured from premium materialsDesigned to strict quality standards
      $90.29
    • (0 reviews)
      # 172937839
      Universal Elite 700 Delay Box by Biondo Racing Products®. Designed utilizing the latest technology, this product by Biondo Racing features premium quality and will perform better than advertised. Perfect for your vehicle and...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $285.19 - $783.97
    • (0 reviews)
      # 174643894
      Universal Air/Fuel Meter by Fast®. With no laptop required, FAST™ has developed three simple, easy-to-use air/fuel meters for gasoline, diesel and ethanol/methanol (E85) fuels. Available in single or dual sensor units, these...
      Ideal for carbureted and EFI enginesAvailable in single or dual sensor units
      $346.05 - $454.83
    • (0 reviews)
      # 174652011
      Universal Single Gasoline Air/Fuel Meter by Fast®. With no laptop required, FAST™ has developed three simple, easy-to-use air/fuel meters for gasoline, diesel and ethanol/methanol (E85) fuels. Available in single or dual sensor...
      Ideal for carbureted and EFI enginesAvailable in single or dual sensor units
      $349.45 - $468.21




    Guides & Articles

    • Performance Chips
      Speedo Calibrators and Tranny Controllers Let You Re-Engineer Your Ride
      Many auto enthusiasts are driving around with speedometers registering too low a speed because they've mounted bigger tires on their vehicle. This effect occurs because larger tires have a greater overall circumference (distance around the outer edge) than smaller ones do. A tire with a larger circumference will cover more ground per revolution, and it will also make fewer revolutions in a mile than a tire of smaller diameter.
    • Performance Chips
      Data Monitors and Loggers Provide Access to Important Drivetrain Info
      If you're tuning a modern engine, there's a lot of information you'll need to know in order to make educated adjustments and avoid trial-and-error guesses. Keeping track of air/fuel ratios, fuel pressures, boost pressures, and rpms is difficult at speed, and trying to commit them all to memory is almost impossible - assuming you even have readouts for these items. Maybe all you need to do is closely watch how temperatures and other things are affected by stop-and-go traffic. Or maybe you take your vehicle on track runs. If so, you already know splitting your attention between gauges and driving just causes you to lose focus on both. Because you can't take notes while driving, we offer a practical and effective solution for the tracking of engine data - recording it electronically for later playback.
    • Performance Chips
      Why Should I Add a Throttle Controller?
      Modern cars and trucks are constantly evolving, mostly due to advancements in electronics. This allows vehicle systems previously controlled by mechanical hardware to be run by computers that have processing power undreamt of several short decades ago. When applied properly, this processing power can wring out higher levels of a vehicle's built-in power and responsiveness, without physically making any engine upgrades. One such system found on today's fuel-injected vehicles is electronic throttle control, commonly known as drive-by-wire.
    • Performance Chips
      Are Superchips Really Super?
      In today's ultra-competitive automotive world where fuel consumption, horsepower, and emissions are paramount, modern vehicles are controlled by computers in order to meet these opposite and conflicting demands. And presiding over the multitude of separate computers on any vehicle is the ECU (Engine Control Unit) - sometimes called the ECM (Engine Control Module).

    2005 GMC Sierra Performance Chips & Programmers Reviews

    Average rating:  5  5 - 4 reviews
    5 of 5
    CTS Adaptor #98003
    Nice clean adapter, easy install and just a neat fit to having the CTS mounted on your dash.
    APosted by Anthony (Rowlett, TX) /
    2010 Ford F-150
    Was this review helpful for you? Yes
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