The BTR SOTF Selector Switch is the perfect accessory for Duramax owners running EZ Lynk custom tuning on their 2011–2016 Chevy or GMC 6.6L LML Duramax. With this OE-style rotary switch, you can instantly change your EZ Lynk tunes while driving—whether you want economy, towing, street, performance, or race, they're all right at your fingertips without ever needing to stop or reflash your ECM.
This switch kit includes a high-quality rotary selector, protective loom, mounting hardware, position switch, and the correct yellow wire configuration specifically for the 2011–2016 LML Duramax platforms. Each part is designed for long-term reliability and smooth, repeatable switching across all tune positions.
The SOTF/DSP5 switch has a nut and two washers. The bottom smooth washer must always remain on the bottom with the tab located in hole number five. If it slips out during installation, follow these steps:
This ensures precise alignment so your switch tracks all positions correctly every time.