GM Duramax DSP5 Switch. If you are considering a DSP5 tune for your truck, you’ll need one of these switches in order to be able to flip between the tunes.
It is important that you identify which vehicle you have by choosing the appropriate option before ordering.
If you have questions, please be sure to ask before ordering! Contact Us or give us a call toll Free: 888-302-0632
*NOTE: Your cheapest shipping option will be USPS. If you need guaranteed service on this item (next day, 2 day, etc.) please select UPS for shipping, otherwise use the postal service for the best price! Contact us with any questions and/or problems.