Looking for in-stock aftermarket parts to modify or upgrade your GMC Sierra 3500 HD with programmers & tuners? At Tunersports.com we carry a huge selection of the top name brand performance programmers & tuner parts and accessories for your Sierra 3500 HD.
Whether you have a 2007 or 2024 GMC Sierra 3500 HD in AT4 to WT trim we have you covered. We have 28 programmers & tuners available to mod your Sierra 3500 HD. All parts have free shipping to the Continental US 48 States.
 IN STOCK 77-14003Silver Bullet throttle body spacers create turbulence in the air flow at the point just prior entry into the engine increasing horsepower, torque and improving throttle response and fuel efficiency. Silver Bullet throttle body spacers are constructed out of durable T-6061 billet aluminum and using ... aFe Power Sprint Booster Power Converter 07-17 GM Trucks V6/V8 (AT) 2007-2014 GMC Sierra 3500 HD WT 2007-2019 GMC Sierra 3500 HD SLE / SLT 2011-2019 GMC Sierra 3500 HD Denali 2015-2019 GMC Sierra 3500 HD Base $277.86 SALE |
 IN STOCK 66411Wrap Your Hand Around Some Serious Power! Introducing the latest in pre-loaded, pre-programmed power from the most trusted name in engineered engine efficiency. Banks is the only record-holding engine builder in the programming game, and now that expertise can be yours! The Banks AutoMind programmer... Banks Power 01-15 Chevy/GMC 6.6L Diesel/Gas AutoMind 2 Flash - Programming Module 2007-2014 GMC Sierra 3500 HD WT 2007-2016 GMC Sierra 3500 HD SLE / SLT 2011-2016 GMC Sierra 3500 HD Denali 2015-2016 GMC Sierra 3500 HD Base $439.00 |
 IN STOCK - LOW 66652Banks Power 17-19 Chevrolet/GMC 2500/3500 6.6L Gen 2 Diesel Derringer Tuner (Req iDash) 2017-2019 GMC Sierra 3500 HD Base / Denali / SLE / SLT $490.00 |
 IN STOCK 66692Stops the competition dead in their tracks. Six years of engine and chassis dyno experience developing and selling this engine for military use results in our torque and power gains across the full operating rpm range, starting right off idle and marching to the shift point in each gear. Derringer i... Banks Power 17-19 GM 2500 6.6L L5P Derringer Tuner (Gen 2) w/ 1.8in iDash 2017-2019 GMC Sierra 3500 HD Base / Denali / SLE / SLT $769.00 |
 IN STOCK 66793Stops the competition dead in their tracks. Six years of engine and chassis dyno experience developing and selling this engine for military use results in our torque and power gains across the full operating rpm range, starting right off idle and marching to the shift point in each gear. Derringer i... Banks Power 17-19 GM 2500 6.6L L5P Derringer Tuner (Gen 2) w/ 1.8in iDash DataMonster 2017-2019 GMC Sierra 3500 HD Base / Denali / SLE / SLT $889.00 |
 IN STOCK - LOW 67100Stops the competition dead in their tracks. Six years of engine and chassis dyno experience developing and selling this engine for military use results in our torque and power gains across the full operating rpm range, starting right off idle and marching to the shift point in each gear. Derringer i... Banks Power 2020 GM 2500/3500 6.6L L5P Derringer Tuner (Gen 2) - Requires iDash 2020-2021 GMC Sierra 3500 HD Base 2020-2022 GMC Sierra 3500 HD AT4 / Denali / SLE / SLT 2022-2022 GMC Sierra 3500 HD Pro $490.00 |
 IN STOCK 67102Stops the competition dead in their tracks. Six years of engine and chassis dyno experience developing and selling this engine for military use results in our torque and power gains across the full operating rpm range, starting right off idle and marching to the shift point in each gear. Derringer i... Banks Power 2020 GM 2500/3500 6.6L L5P Derringer Tuner (Gen 2) w/ 1.8in iDash 2020-2021 GMC Sierra 3500 HD Base 2020-2022 GMC Sierra 3500 HD AT4 / Denali / SLE / SLT 2022-2022 GMC Sierra 3500 HD Pro $769.00 |
 IN STOCK 67103Stops the competition dead in their tracks. Six years of engine and chassis dyno experience developing and selling this engine for military use results in our torque and power gains across the full operating rpm range, starting right off idle and marching to the shift point in each gear. Derringer i... Banks Power 2020 GM 2500/3500 6.6L L5P Derringer Tuner (Gen 2) w/ 1.8in iDash DataMonster 2020-2021 GMC Sierra 3500 HD Base 2020-2022 GMC Sierra 3500 HD AT4 / Denali / SLE / SLT 2022-2022 GMC Sierra 3500 HD Pro $889.00 |
 IN STOCK 63865Calibrated for diesels that work and tow. Adds up to 100 hp/ 235 lb-ft with adjust on the fly power; built-in-safety; CleanTuner Technology and fuel economy features. All gains measured at rear wheels.... Banks Power 06-07 Chev 6.6L LLY-LBZ Economind - Powerpack w/ Switch 2007-2007 GMC Sierra 3500 HD SLE / SLT / WT $739.00 |
 IN STOCK - LOW 63867Highest proven HP and torque for sport applications; adds up to 155 hp/ 385 lb-ft with adjust on the fly power; built-in safety and CleanTune Technology; plus flexible touch screen vehicle command center.... Banks Power 06-07 Chev 6.6L LLY-LBZ Six-Gun Diesel Tuner w/ Switch 2007-2007 GMC Sierra 3500 HD SLE / SLT / WT $642.00 |
 IN STOCK 1036606Easy to install; Faster engine warm-ups; Adjustable; Great to use for remote starters, PTO's and extended idling applications; 2006-2007 LBZ 800/1250/1700 RPM... BD Diesel High Idle Control - 2006-2007 Chevrolet Duramax LBZ 2007-2007 GMC Sierra 3500 HD SLE / SLT / WT $61.41 |
 IN STOCK 1036627Easy to install; Faster engine warm-ups; Adjustable; Great to use for remote starters, PTO's and extended idling applications; 900/1200/1500/1800/2100 RPM... BD Diesel High Idle Control - 08-17 Chevrolet Duramax 6.6L 2008-2014 GMC Sierra 3500 HD WT 2008-2019 GMC Sierra 3500 HD SLE / SLT 2011-2019 GMC Sierra 3500 HD Denali 2015-2019 GMC Sierra 3500 HD Base $318.95 |