hey guys im about to get some 100 hp injectors. the ip is already tweaked and a pin. i need some help! i know im going to need gauges but which ones should i get? any other upgrades? i want to be able to get about 400 hp or so..

 

Pyrometer, Boost, Fuel pressure. When I installed my Denny T pin it brought my pyro temps over 1100, you should have gotten them first, IMO. Im not near 400 and with whats in my sig I have trouble cooling exhaust temp on hills, pulling my trailer. I would assume your gonna need twins and meth but, Im sure someone who's close to 400 will chime in. Good luck!!!