Great to here tim., good to see the Dealerships taking care of there customers..., Especially there Avalanche Customers, Mine has made Me Very Happy., in getting My Differential problem fixed so fast., and I taked to them about My Whipple Charger.., and they said to Me., after You install it., bring Your truck in., and the Service Manager said He would have one of His Master Certified Techs sign off on the installation.., this way., He told Me I will retain My 3 Year 36,000 mile warrenty., as this is the Supercharger used on the (Thunder) Av.., and We had talked Racing, and Performance for a bit.., and He said.., You know Your stuff., so Im sure You'll do the install Right., so I have no problem with doing this for You., and the Owner for the Delership loved Your truck, and what You had done to it so far.., said it is good advertising for our Avalanche sales., so if He wants to do the Whipple Charger.., thats no problem.. Wow., am I Ever Pleased with this Dealer., I had never dealt with them before..., But.., they have a lifetime Customer now in Me.....