I installed the BD kit. Not too bad to install and I think it is supposed to be good for 75 psi. I'm pretty sure Piers has one that goes up to 100psi or more, but I've heard they are a royal pain in the arse to install. I'm running 52-55 psi max and have had no boot blowing issues whatsoever since installing these. Geno's sells the kit for $199 I believe. The clamps are very heavy duty!