On my 17 GT Premium I installed GT350 gauges and the oil temp works but not the oil pressure. Have to take it to Galpin Auto Sports in SFV to have them unlock the gauge,
Did similar W/Yellow KYBs adj. and FRPP suspension BMR front and rear sway bars, KYB font brace, stteeda jacking rails W/ Brembo front brakes and 19 PP1 wheels so far.