I am snot sorry 2 say,, butt, I devised dis system. Been a chiller tech fer 40 ears and came upster wit da system 2 run off da 134A refrigerant frum da factory. Remembuurr da 1st 1ns came out wit da box of ice. Den da next waz a whole different system, no guud. Tat is why I devized da 1- 2 wurk off original system. Dare is no such of plug and play system. Not. I have contacted da idiots dat say da same ass to cut and turn on. No. Wood youz dew dat 2 your a/c system at home. No. Cut and whack and watch gas spuw out and figure dat will wurk?? Hell no, buttster youz don'thalf 2 spend a huge amount of $$ 2 install. Yes, youz doo need extra gas, guages, fittens, tubes, tape, cummon cents, buttster snot alot. If youz waz 2 purrchase da stuff at, say Auto Snow whore da like, tell em whatz youz bee doin. Day wood lend you da guages, sell da gas,, butt snot da canaster, sell fittens and da like, cheap. Dew snot use old used tuben. Humidity gets 2 it will bee contaminated. You have 2 purge da system 2 relieve da humidity whore else?? Dis plug & play is watt it saz, play. Cummon cents is coreect. Bull shitster. Dew it correcdum and it will wurk. Like wa, cheap skatester. Deevize a HX system dat draws da heat out of da system by culant whore air. Da plug & puke is ha guud sellen point butt? Right. I went 2 da local hot rod shop, privatly owned, and wa and da mechanic priced upster a system dat wood wurk. Utter dan da plug & finkster and da price waz ovah $18,000 wit me duen 1/2 da labah. No f-ing way. Eye con add 2 moe HX, inner coolers, fer 1/3 da price wit extra ruum.Cum on. $$$ all about.