2008 GMC Sierra Denali Performance Chips

    • BULLY DOG®RAM Mirror-Mate™ Mounting Kit (for Triple Dog GT and WatchDog)
      $40.49$32.39
      (0)
      GMC Sierra Denali 2008, RAM Mirror-Mate™ Mounting Kit for Triple Dog GT and WatchDog by Bully Dog®. Adds a Ram-Mount ball mount between the OEM mirror and the mirror button glued to the windshield glass. Does not affect location...
      # 42488666
    • BULLY DOG®Triple Dog GT Tuner
      $624.75$499.80
      (1)
      GMC Sierra Denali 2008, Triple Dog GT Tuner by Bully Dog®. The Triple Dog Gauge Tuner or GT is four products in one: a vehicle engine tuner, monitor, gauge and diagnostic device all in a single unit. The GT dramatically improves...
      # 42491550
    • BULLY DOG®WatchDog™ Monitor
      $374.99$299.99
      (1)
      GMC Sierra Denali 2008, WatchDog™ Monitor by Bully Dog®. Monitor multiple vehicle parameters. Plugs into OBD-II port for easy installation. Mount permanently or suction cup to windshield. Great for tuning or towing. Tracks...
      # 42491561
    • HYPERTECH®Speedometer Calibrator
      $286.25$229.00
      (0)
      GMC Sierra Denali Gas 2008, Speedometer Calibrator by Hypertech®. The law requires accurate speedometer readings, even if you have non-stock tires or gear ratios installed. The Speedometer Calibrator is created to provide that...
      # 2017527
    • Banks®iQ Flash
      $927.35$741.88
      (0)
      GMC Sierra Denali 2008, iQ Flash by Banks®, HP Gain: Up To 154 hp, TQ Gain: Up To 318. Take complete control of all added power and safety functions when you connect the Banks iQ Flash to any Banks diesel tuner, AutoMind Flash...
      # 3144102
    • DiabloSport®inTune Programmer
      $486.25$389.00
      (0)
      GMC Sierra Denali 2008, inTune Programmer by DiabloSport®. With dimensions smaller than most smart phones, this full-function programmer plugs in to any vehicle’s OBD II port to remap ECU operation for increased power and...
      # 26901883
    • DiabloSport®Trinity Analog Cable
      $24.99$19.99
      (0)
      GMC Sierra Denali 2008, Trinity Analog Cable by DiabloSport®. For vehicles with a tight amount of leg room, this accessory OBD II cable features a 90 degree bend to route the cable out of the way of your knees. Extremely useful for...
      # 26901884
    • DiabloSport®Trinity Suction Cup Mount
      $31.24$24.99
      (0)
      GMC Sierra Denali 2008, Trinity Suction Cup Mount by DiabloSport®. This is a replacement suction cup mount for all T1000 units. This item has universal fitment to all Trinitys and is a service replacement for lost or damaged...
      # 26901885
    • BULLY DOG®GT Platinum Programmer
      $460.69$368.55
      (0)
      GMC Sierra Denali 2008, GT Platinum Programmer by Bully Dog®. Shift Point/Firmness. Speed Limit. The GT Platinum is four products in one; a vehicle engine tuner, monitor, gauge and diagnostic device all in a single unit. The GT...
      # 42488816
    • JET®Performance Module
      $303.70from $242.96
      (0)
      GMC Sierra Denali 2008, Performance Module by JET®. Provide Performance Gains Up To 21 Horse Power. Easily Installed In Less Than 30 Minutes. Will Increase Horsepower And Torque. Improve Overall Throttle Response. Performance Tune...
      # 13555247
    • JET®Dynamic Spectrum Tuner
      $468.75$375.00
      (0)
      GMC Sierra Denali 2008, Dynamic Spectrum Tuner by JET®. Modify Virtually Every Aspect. Allows Editing Of Fuel And Spark Tables. Allows Editing Of Speed And Rev Limiters. Allows Editing Of Transmission Functions. Allows Edit Torque...
      # 13546105
    Guides & Articles
    Are Superchips Really Super?Are Superchips Really Super?
    Although most automobile manufacturers try to achieve a balance between performance and emissions when the ECU is programmed, in reality more power can be obtained when certain engine control parameters are changed. Aftermarket superchips are made to adjust parameters to increase engine power and torque. The superchip gives a “boost” to your vehicle’s...
    The throttle controller will basically bypass the computer in the vehicle. It is designed to take the information right from the accelerator position sensor and compile it in a high speed controller circuit that compiles the signal sent from the Accelerator position sensors. With this controller you are able to program it to different options and the throttle...