CST and Bulletproof are very similar as a former CST employee owns Bulletproof. Both use very similar bracketry the major difference as Donovan mentioned is Bulletproof's steering setup. They use a crossover setup that IMO is better than the centerlink setup that CST uses. With that said I also think CST's steering setup is better than the majority of other lift kits out there. Bulletproof's major downfall is limited production and all their lifts are too big for most peoples taste. If Bulletproof offered a 6" kit I would buy it over CST as everything is the same except for the steering and cosmetics. I have had very good luck with both companies as I ran a CST lift and Bulletproof upper arms and shocks hoops on my old truck before CST offered the uniball setup. I have the owners name but I don't have their contact info. Go to PerformanceLifts.com and talk to Jeff. He may still be in contact with Bulletproof.
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