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The devil is in the details when it comes to tuning your Sierra engine to perfection, a fact that DiabloSport fully recognizes with its well-regarded line of 2007-2013 tuners for that vehicle and many others besides. Featuring a hand-held form factor made possible by today’s amazingly miniaturized electronics, DiabloSport puts a whole pit crew’s worth of knowledge and tuning power at your fingertips, letting you get a professional level tune with the push of a button or two and a little patience while the 2014-2018 tuners “flash” your pickup’s engine. Low-end horsepower, overall drivability, and sizzling throttle response all result from an easy to apply DiabloSport tune. The pre-loaded performance tunes are both dyno-tested and street-tested to ensure you’ll get real power gains from the tuneup, too. And, you can save on shipping costs when you buy through American Trucks – all orders of $75 or more ship free.

Fitment Includes

  • 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 GMC Sierra 1500
  • Classic, Nevada Edition, SL, Z71, Denali, SLE, 1500, and SLT Sierras
  • Engines: 4.3L Vortec V6, 4.8L Vortec V8, 5.3L Vortec V8, 5.3L Flex-Fuel Vortec V8 6.2L VVT Vortec V8, 4.3L EcoTec3 V6, 5.3L EcoTec3 V8, 6.2L EcoTec3 V8 Sierras

*Please see Sierra parts pages for any exceptions.

DiabloSport Sierra 1500 Parts