New customers take 10% off any tuning! use code "NEW10"
**Transmission tuning for line pressure changes strongly suggested for 75hp+ tunes**
*Transmission tuning available for LWN and LML Duramax's*
*2001-2010 Dmax we do not build transmission tunes unless the transmission is an upgraded build*
We are LML tunes on the TDN app, you will get an email after the order with how to set it up and a link to us