Precision Works LS R4 A/C Bracket LQ LS2 LS3 LS6 Version 2Precision Works LS R4 A C Bracket LQ LS2 LS3 LS6 Version 2 Version 2 of this Precision Works LS R4 A C Bracket uses 100% billet aluminum with high quality hardware. The difference is we uses less part, the bracket plate is thinner for lightweight. Hands down the best value on the market today for less than $100 with free shipping included! Key Features: 6061 grade billet aluminum CNC machined Front bracket Rear bracket Hardware that includes bolts,