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Accel SuperTuner (99-06 4.8L Silverado 1500)Find parts that fit my vehicle

Item S114427G99-48
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$390.95 each

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      Product Information

      Features, Description, Reviews, Q&A, Specs & Installation

      Features

      • Improves Horsepower, Torque and Overall Performance
      • Pre-Loaded with Pre-Configured Accel Tunes
      • Full Color, High-Resolution 2.8-inch Display
      • Easy to Understand Graphic Interface
      • Simple to use 5-Button Interface
      • Reads/Clears DTC Trouble Codes
      • CARB Certified - CARB EO #D-745
      • Internet Updateable - PC/Windows Compatible Only
      • Fits 1999-2006 4.8L Silverado 1500 Models

      Description

      Increase Horsepower and Torque. Unlock the hidden potential that your vehicle has to offer with an Accel SuperTuner. When your vehicle rolled off the assembly line, the manufacturer programmed it to the needs of a daily driver and not the performance enthusiast. After loading one of Accel’s Pre-Configured Tunes, you will see a noticeable gain in horsepower and torque.

      Adjustable Parameters. The Accel SuperTuner features end user-adjustable parameters so you can further customize the tune to maximize the performance of your modifications. These parameters can be adjusted on Accel SuperTuner Pre-Configured Tunes and/or the stock tune. Please note not all adjustments are available on all models/vehicles.

      • Active fuel management control
      • Tire size adjustment
      • Axle gear ratio adjustment
      • Shift point and firmness adjustment
      • Speed and rev limiter adjustments

      Compact, Convenient and Efficient. Featuring a full color, 2.8-inch high definition screen, this Accel SuperTuner has a slim, sleek design that makes it easy to handle and store in your center console or glove box when not in use. Not only is it compact, but its exceptionally graphic interface provides an improved user experience, when compared to the older SuperTuner models. Powered by your vehicle's OBD-II port or USB connection when connected to your PC/Windows computer, this Tuner features increased memory with a high speed processer to provide extraordinary tuning and updating speed.

      Internet Updateable. The Accel SuperTuner includes a USB cable to enable quick updates or upgrades over the internet. It is recommended to update your SuperTuner to ensure you have the latest software updates and calibration files before installation. Updates are available through Accel.

      Measure 0-60 Times. Another really cool feature of the Accel SuperTuner is that it allows you to measure your 0-60 and 1⁄4 mile elapsed times. By keeping track of your 0-60 and 1/4 mile times you can see the difference your latest go fast mods have made.

      Diagnostics Tool. The Accel SuperTuner can also be used as a diagnostic code reader. Save yourself time and money by reading and clearing your own Diagnostic Trouble Codes (DTCs) rather than paying a dealer to do the same. It's as easy as a few simple steps.

      Easy to Load; Easy to Restore. When you load your Accel tune on your vehicle, the tuner automatically stores your vehicle's factory settings. To return to the original factory settings, just plug the tuner back in, select the option to restore the factory settings, and you're done. This is ideal for visiting dealerships for warranty work.

      CARB Certified. The Accel SuperTuner is 50-state emissions compliant, meaning you can enjoy more power in states with CARB restrictions like California, without any headaches or worry. CARB EO Number: D-745.

      Application. This Accel SuperTuner is designed for use on 1999-2006 4.8L Silverado 1500 Models.

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      Fitment:

      Details

      Accel 49505

      CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

      Installation & What's in the Box

      Installation Info

      Installation Time

      (approx) 15 Minutes

      Difficulty Level:

      Simple installation for anyone.

      Installation Guides

        No guide available for this part yet.

      What's in the Box

      • (1) Tuner
      • (1) OBD-II Cable
      • (1) USB to Mini-USB Cable
      • Quick Start Guide
      4.5

      Customer Reviews (28)

      Customer Photos featuring this product

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      Review Summary

      5 Stars71%4 Stars21%1 Stars7%
      4.5 out of 5 overall ratings from 28 customers

      Installation Time: Less than 1 Hour

      Aug 29, 2021

      5
      2002 LS - Freddievargas
      Installation Time: Less than 1 Hour

      Great product

      Great product worked on my 2002 silverado 4.8 liked how i could change my tire sizes and speed limiter and shift points

      Ease Of Use 5/5
      Performance Gain 5/5
      Seat of Your Pants Feel 0/5
      Bang For Your Buck 4/5

      Jul 21, 2020

      1
      2002 LS - 121990

      Did not work on my truck

      I tried performance tune and tow tune but did noting to my 4.8 Silverado 2002 So disappointed I paid close to 270$ for this and had to wait almost a full month to get

      Performance Gain 1/5
      Ease Of Use 5/5
      Seat of Your Pants Feel 1/5
      Bang For Your Buck 1/5

      Dec 20, 2023

      5
      Powerhouse

      Tuner

      It works as it should and does great and has several different settings to choose from

      Ease Of Use 5/5
      Performance Gain 3/5
      Seat of Your Pants Feel 3/5
      Bang For Your Buck 3/5

      Jan 26, 2022

      Review shared from Accel SuperTuner (99-06 5.3L Silverado 1500)

      5
      2002 LT - Davejen675
      Installation Time: Less than 1 Hour

      I LIKE IT (A LOT) !!

      For such a small space a lot is going on. It worked real well on my 02 Chevy Silverado. 9" of lift, 37/12.50/18's. 4.88 Front and rear gears. The tuner corrected the shifts and speedometer. Great product for the money.

      Ease Of Use 5/5
      Performance Gain 5/5
      Seat of Your Pants Feel 5/5
      Bang For Your Buck 5/5

      Mar 10, 2023

      Review shared from Accel SuperTuner (07-13 5.3L Silverado 1500)

      5
      2007 LT - Davejen675
      Installation Time: Less than 1 Hour

      This really works!

      I bought it to adjust some parameters on my truck to accommodate larger tires and such. The fuel mileage is helpful and the power gains are significant. Thanks for a product that works.

      Performance Gain 5/5
      Ease Of Use 5/5
      Seat of Your Pants Feel 5/5
      Bang For Your Buck 5/5

      Jul 27, 2022

      Review shared from Accel SuperTuner (14-16 5.3L Silverado 1500)

      5
      2014 LT - Tonemacchee
      Installation Time: Less than 1 Hour

      All around great product

      Controller fixed my hesitation on acceleration and shifting lag

      Ease Of Use 5/5
      Performance Gain 4/5
      Seat of Your Pants Feel 4/5
      Bang For Your Buck 4/5

      Jul 4, 2022

      Review shared from Accel SuperTuner (14-16 5.3L Silverado 1500)

      5
      2015 LT - 2018z71
      Installation Time: Less than 1 Hour

      Towing camper

      I was very pleased with the towing mod on 93 octane, couldn’t even feel the loaded camper and camping gear

      Ease Of Use 5/5
      Performance Gain 4/5
      Seat of Your Pants Feel 4/5
      Bang For Your Buck 4/5

      Oct 22, 2021

      Review shared from Accel SuperTuner (07-13 5.3L Silverado 1500)

      5
      2009 LT - BrandanGearhart
      Installation Time: Less than 1 Hour

      Tuner

      This does help give you horsepower and you can notice it

      Ease Of Use 5/5
      Performance Gain 5/5
      Seat of Your Pants Feel 5/5
      Bang For Your Buck 5/5

      Jul 5, 2021

      Review shared from Accel SuperTuner (07-13 5.3L Silverado 1500)

      5
      2010 - ajklein
      Installation Time: Less than 1 Hour

      Night and day differnce

      its a easy plug and play.Best bang for your buck. My truck is super quick now.

      Ease Of Use 5/5
      Performance Gain 4/5
      Seat of Your Pants Feel 4/5
      Bang For Your Buck 5/5

      Jan 25, 2021

      Review shared from Accel SuperTuner (14-16 5.3L Silverado 1500)

      4
      2014 LT - Acebrando

      Programer

      It work great after a few issues. It will not work until u update with a computer and register it but after that def happy with all the thinks that u can adjust and do

      Ease Of Use 3/5
      Performance Gain 4/5
      Seat of Your Pants Feel 0/5
      Bang For Your Buck 0/5

      Questions & Answers

      No questions about this product yet. Ask the First Question

      Will It Fit My Silverado 1500

      • 4.8L V8 - 99, 00, 01, 02, 03, 04, 05, 06

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          Your website is easy & helpful. your deliveries come when you say they will. If you have any questions or problems you answer them quickly.

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