[Compatibility] Specifically designed for 2011/2012/2013/2014/2015/2016 GM Duramax LML.Fits 2011-2016 Silverado/Sierra 2500HD & 3500HD, Express 2500/3500/4500, Savana 2500/3500/4500.
[5-Position Selector Switch] Suits different driving demands-daily fuel savings (Economy), balanced towing (Light/Heavy Tow), thrilling acceleration (Performance), or track-ready power (Race).
[Durability] Knurled aluminum control knob offers solid grip and durability. Heat-resistant wire with split loom tubing resists heat and wear under the hood, ensures power delivery in extreme engine bay heat.
[Easy DIY Installation] Comes with detailed instructions. Wire colors and connector pin locations are marked for a smooth setup (Yellow = Pin 11, Black = Pin 35).Professional installation is highly recommended.
[Complete Package] Includes 1 x SOTF switch, 1 x split loom tubing, 1 x black control knob (pre-installed screws), 1 x dial plate,and 1 x hex wrench—everything needed to get started right away.