E89 Z4 E45 gear4 E89 Z4 N54 *E45 mix* Fin-turbo stage 2 with FBO LPFP Walbro 450 + new oem HPFP LP sensor retrofitted B58 oem coils + 2-step colder sparkplugs
Power issues I have power issues I can’t get over 170 hp and torque it’s like I’m capped I install the MHD flex fuel kit