LLY - LBZ - LMM DSP5 Switch

The 5 Position LLY-LBZ-LMM Duramax Switch is designed for seamless integration, plugging directly into the ECM connector of your 6.6 Duramax diesel truck. This Duramax tuning switch allows you to switch between custom tunes on the fly, giving you instant control over your truck’s performance.

Built for convenience and performance, this Duramax switch requires you to open the ECM connector of your truck and pin the new wires. It is perfect for a combination of daily driving, towing, or performance tuning.

Fitment: Compatible with 2004.5–2010 Duramax 6.6L diesel engines.

Includes:

• Rotary SOTF Tune Selection Switch with knob
• Switch position label / face plate
• Protective wire conduit