Starting now till the 19th of September, buy any Superchips Racing programmer for any of the big three diesel applications through the Superchips internet store and use promo code redline to get 50% off the Redline** downloadable racing file.
2007.2 - 2009 Duramax 6.6L LMM owners using the Redline file for example will gain +151 HP and +266 ft/lb TQ to the rear wheels.
**Additional modifications such as DPF and EGR delete kits are required to use the Redline file.
This is an offroad only product and is not meant for street or highway use where normal emissions laws are present.
Any questions feel free to let me know.