Merchant Automotive Switch

The Merchant Automotive DSP5 Switch is an ignition component specifically designed to integrate seamlessly with EFI Live Tuning for the GM 6.6L Duramax LB7 engine. This device provides the user with the ability to change tuning parameters on-the-fly, offering significantly enhanced flexibility and control over engine performance. It is crucial to understand that this product is a switch only; the actual DSP5 tuning files are not included. To utilize the full functionality of this DSP5 switch, you must already have compatible DSP5 tuning installed on your vehicle's ECU. This allows for the selection of up to five different performance or economy modes without needing to stop and reflash the computer. This specific model is designed for the 2001-2004 LB7 Duramax engines. For other model years or variations, different DSP5 switch configurations may be required. Ensure compatibility with your specific vehicle application before purchase.