Please get them out of your closet and pack your old and extra SFI fire jackets. I don't have an NHRA 2006 rule book and cannot find the data on line but the strong rumor is that any car, (any car), with an aftermarket supercharger or turbo or nitrous requres that the driver have a fire jacket.
So just to be safe, in case Indy invokes that rumored rule, let's let our friends who don't have one borrow.
Karl