Based on a new GMT900 platform, the Sierra now had a level of sophistication to accompany its power and ability as a truck. A 6.2L sibling of the LS3 was also introduced, giving you the ability to buy a 400 horsepower truck off of the showroom floor.

Improve the sound and performance of your ride with Hooker, Flowtech or Flowmaster mufflers! Choose from various styles including; turbo, chambered or glass pack styles in multiple configurations.