UPDATED LISTING 03/04/2021: E9X 3 series boot will no longer be OEM. We will use the our own boot with our double stitching. E9X M3 will still use OEM boot that we modify. Will not come in OEM cross stitching, only double line. Sometimes the options you're given is not quite enough. Having the ability to retrofit the Performance shift knob with carbon fiber and Alcantara can be the little touch you need to finish your interior build. We will do the retrofit for you and place it onto a new base so you can do a quick swap. Please note that ALL pieces are Genuine OEM including the knob and the boot, except E9X 3 series. The retrofit is used to provide cross-compatibility. These are made to order and may be a few days before they ship. Install: take 10-15 minutes. Difficulty 2/10. PLEASE be careful when pulling the knob. Do not pull straight towards you. You will most likely hit your face.. Pull straight up after unclipping the boot. And just swap it. Press FIRMLY back down to latch the knob back in place. Done!