It looks like there is a new rule for aftermarket power added cars for 2006. Any driver running 10-13.99 with an aftermarket power adder (ie Turbo, Nitrous, or Blower) must wear an 3.2a/1 fire retardant jacket. Our track is NHRA sanctioned and they will be enforcing this rule stringently according to our tech guy. I don't know what it's like anywhere else but just something for you guys to be aware of. I just bought one from Summit Racing for $45US. Pretty cheap actually. It's good for a 3 second blast from a hydrocarbon fire. Just FYI for you guys running nitrous or blowers and plan to go to the track. Check it out before hand.