Originally Posted by enrita
you only need those for much higher power you are running. no need without upgraded turbos.
I can't see it hurting. There's lots of people running this plug with what I have. Sure it's more beneficial with your mods
JB4 G5, VRSF catless DPs, FMIC, BMS DCI, Muffler Delete, Alpina B3 Flash, RB Turbos, BB Race Flash