What car do you have? MY99 sedan
What engine is it? EJ205
What mods that may affect fuel? TBE, CAI, BOV
Whats the transmission? Auto/Manual? Manual
How many k's do yo u get to a full tank? 450-470 with old RMS 3" zorst, now 400-420 with HKS system..
What fuel do you use? U98


Will resubmit once FMIC, VF34, Autronic, Fuel Pump, Silicon Intake and other engine mods are on and tuned to see what difference it makes..