I heard that SCT offers on off road package that comes with a new programmer and a furnace delete pipe that is interchangable with the factory pipe. Basically it elminates the furnace that dumps 1.5 gallons of fuel to burn all the crap in the particulate filter. Anyone heard of this system? SCT makes you sign and fax a waiver before they'll sell it to you. I wonder if it's worth the trouble and the money????