Superchargers and Warranties

[Born again]

I was supposed to pick up my '04 Lux today but thaere was a glitch installing the 3rd TV screen. I asked for installation in the headres in front of the third row seat and the dealer said they had to order it special beacuse the headrest fold when the second row seat is folder down. SO now I have to wait three more days . Anyway, I have been thinking about taking the extra time to let the fealer install a supercharger. The dealer wants $8,500 installed. The salesman says it is covered under the manufacturer's warranty if the dealer installs it. The sales manager says the warranty is actually provided by the supercharger manufacturer. Any on you knowledgable folka have any ideas on the best supercharger system and prices installed? More importantly, has anyone had any experience with warranty service with an installed supercharger. I don't want to have a problem after I get the Hummer huffer . Thanks for the info. God bless all!