Many of the different companies use the same bag manufacturers. I've always used the generic kits that used the Firestone bags. Four wheel parts wholesalers always had the best prices that I found. The complete kits with compressor ran around $450. That price was the shop price. Its been a couple years since I bought a kit, so the pricing may have changed slightly. What ever you do, get the kit with a compressor, will make life much easier in adjusting your load.