i was planing on doing these to my supra, i have bpu++ i do have a boost controller and the bcc, but i dont have any gauges, can i still put these or should i install some gauges(egt,boost)first? and has anyone done these, do you have tips or recomendations? thanks

gauges at bpu lvl dont really mean much. unless your running nitrous or so then no these arnt neccary they are just there to be impressive and move. a boost gauge is just damn cool =)