Wow, that seems like a huge amount of money. Electric / Air systems can be bought or built for lot less. Cycle-tek sells the killbox w/ wiring harness for $130. Plugs right into 08 Busa. The air cylinder is $27 from Grainger, solenoid is $30 and the paint ball bottle goes for $18 at the local WalMart. Throw in some fittings and some sweat equity and your under $200 for whole system. Cycle-tek sels whole systems running on CO2 or compressed air for $360ish or so. Autozone sells miniature compressors that can be mounted in tail or nose. 120 psi air gauge can be swiped from work. Several folks sell systems running off the nitrous bottle, but I would recomend against it. I have never heard of one reliably working at the track. I'm not a big fan of CO2 either because it always runs out when you're ready to pull into lanes.