Diesel truck accessories off road accessories ABOUT US | RETURNS FORM | POLICIES | FAQ'S | VIEW CART | CHECKOUT
100% customer guarantee
join our newsletter Thoroughbred Diesel
brands performance accessories stock parts tractor parts
customer guarantee
shop by diesel
shop by
Thoroughbred Apparel
read our low price guarantee
click here for diesel truck gallery
gift cards
diesel resource guide
Diablo Sport logo

Diablo GMC Sierra InTune Tuner

InTune Flash Tuner
free next day air
click here to order
DiabloSport InTune Tuner
Fits: GMC Sierra
Part # I1000 (1 sku fits multiple applications)

Q: What is the difference between the Diablo Trinity vs. Intune?
The Trinity has the virtual gauges, on screen dragstrip, SD card, and more 'features', while the inTune is the latest in tuner technology, on a Predator replacement level. Engine tune wise, they're the same but the Trinity is better for data logging.

Important GM Vehicle Note: 2011 & 2012 GM Trucks/SUVs with 8th digit in the vin G are not supported.

NOTE: This product CAN NOT ship to California due to CARB regulations.

Add horsepower and torque to your car or truck using DiabloSport’s dyno tested performance tunes! These tunes are pre-loaded in to each inTune unit specifically to increase your power, economy, and drivability (see below)

The tunes work great whether on a stock vehicle, or even mildly modified (like a cat back exhaust and cold air intake). DiabloSport takes the guess work out of making safe, reliable horsepower on your ride!

inTune always saves a copy of the vehicle’s factory data in its memory in case it needs to be serviced at the dealership at some point in the future. That means you always have a copy of your vehicle data on your tuner and once it’s restored it leaves no footprints or watermarks in the vehicle’s computer.

Using state of the art tuning software along with DiabloSports extensive tuning experience, the DiabloSport inTune is able to offer the safest, most powerful and efficient tuning you can buy!

With enhanced memory and the latest in tuning technology, the inTunes is the most reliable hand held programmer available.


  • Easy operation using the color touch screen
  • One part number covers hundreds of vehicle applications
  • Includes pre-loaded tunes for all supported vehicles
  • Automatic online updates with PC - FREE
  • Downloads drag and drop updates with Mac - FREE
  • Includes USB update cable
  • Performs data logging
  • Accepts custom tunes
  • Includes diagnostic code reader
  • Includes input for up to two added external sensors
  • 30-Day satisfaction guarantee when purchase through a participating dealers
fitment chart
Year Make Model Sub-Model Engine Vehicle HP Rating
1999-2013 GMC Sierra 1500/2500/3500 4.8L 15-30 HP/ Ft./Lb TQ
1999-2013 GMC Sierra 1500/2500/3500 5.3L 15-30 HP/ Ft./Lb TQ
2014-2014 GMC Sierra 1500/2500/3500 5.3L 15-20 HP/ Ft./Lb TQ
1999-2013 GMC Sierra 1500/2500/3500 6.0L 15-30 HP/ Ft./Lb TQ
2009-2014 GMC Sierra 1500/2500/3500 6.2L 15-30 HP/ Ft./Lb TQ
1999-2007 GMC Sierra 2500/3500 HD 8.1L 15-30 HP/ Ft./Lb TQ
2001-2010 GMC Sierra 2500/3500/4500/KODIAK 6.6L Duramax 40HP-65HP-85HP-120HP
Product Description Price Order
DiabloSport InTune
Fits: 2001-2010 GMC Sierra 2500/3500/4500 HD
Eng Size: 6.6L Duramax (DIESEL)
free next day air
DiabloSport InTune
Fits: 1999-2013 GMC Sierra
Eng Size: 4.8L
free next day air
DiabloSport InTune
Fits: 1999-2014 GMC Sierra
Eng Size: 5.3L
free next day air
DiabloSport InTune
Fits: 1999-2013 GMC Sierra
Eng Size: 6.0L
free next day air
DiabloSport InTune
Fits: 2009-2014 GMC Sierra
Eng Size: 6.2L
free next day air
DiabloSport InTune
Fits: 2014-2014 GMC Sierra 1500
Eng Size: 5.3L
free next day air
DiabloSport InTune
Fits: 1999-2007 GMC Sierra 2500/3500 HD
Eng Size: 8.1L
free next day air
Thoroughbred Diesel logo glowing Thoroughbred Diesel Performance and Repair Shop
4843 Rockwell rd.
Winchester, KY 40391
Call Toll Free: 1-866-737-4966
Copyright© 2003-2015 Thoroughbred Diesel All rights reserved.
Site Map
100% customer guarantee