there is only one that matters Razor. The real question should be where can i purchase it.. lol and thats from any vendor and directly from him me personally i use hartline and razors..
I just finished installing Razor's kit last night. The kit is 100% complete and awesome! Initial road tests will be tonight or tomorrow. If you search 'Alky" many posts will come up. Julio answers nearly every question asked and he even puts his phone number on the instructions of the kit, the support is great.