Most people know that modifying a truck's engine will make it more powerful. What we do is offer GMC Sierra Engine components that not only address performance, but durability as well as efficiency and even reliability. You count on your truck for so many things, from work to play and even just getting around. We want to make each trip more enjoyable and productive, so you love your Sierra more than ever. One of the biggest ways to make more horsepower and torque is to install a high quality Whipple W140AX Intercooled Supercharger Kit. We have a nice selection of options for different model years and engine sizes, so you can get a forced induction setup that's engineered just right for your truck. Each kit comes with everything you need to get the supercharger installed and running reliability day after day, including the intercooler, piping, and hardware. You'll be amazed at how big of a difference a Whipple will make when you press down on the accelerator, putting a big smile on your face. If you're looking for a less expensive modification that still will give you some thrills and a practical performance upgrade, check out the JMS PedalMAX Drive By Wire Throttle Enhancement Device. It plugs right into your truck's OBD II port, and you can stack it with tuners and other devices. Instead of a delay between pressing on the pedal and the engine responding, the reaction is laser quick, so you can get up to speed or pass others without issues. Any engine components you choose from our site will deliver the kind of quality you demand from your truck.

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Fitment Includes

• Base, C3, Classic, HT, Hybrid, Nevada Edition, SL, Z71, Denali, SLE, 1500, SLT and WT Sierras
• Engines: 4.3L Vortec V6, 4.8L Vortec V8, 5.3L Vortec V8, 5.3L Flex-Fuel Vortec V8, 5.3L Vortec V8 Hybrid, 6.0L 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.