• Sign Up! To view all forums and unlock additional cool features

    Welcome to the #1 Genesis G90 Forum and Genesis G90 community dedicated to Genesis G90 owners and enthusiasts. Register for an account, it's free and it's easy, so don't hesitate to join the Genesis G90 Forum today!


Search results

  1. J

    JB4 Misfires

    Hello all, I’ve had the JB4 on my 2019 Stinger GT for about 15,000 miles now. Car is at 21,000. I haven’t ran into issues until recently. At high RPM, I’m getting misfires and loud pops from my exhaust. I usually just run 93 octane. - 15,000 miles on performance plugs - Borla Catback -...


Top