only reason procharger is considered the best is because they sell a cheap intercooler with their kit. vortech w/ an intercooler > procharger w/ an intercooler IMO if your comparing the P1SC to the vortech S ... the D1SC is nice so is the F1 ... if you want the best for the $$ though get a Novi2000 - and if you got too much money then get a KB or send the money to me
