Purchase and Installation Options Shift Collar: The OEM shift boot comes with a chrome/plastic collar which is attached with a metal retainer ring. Our collar is a black 3d Printed version made from PLA Lower Retainer Ring: This is the frame of the lower part of the shift boot which allows the shift boot to snap onto the center console 1. PLUG AND PLAY. Most aftermarket shift boots come bare. This options comes with a 3d Printed shift collar and also a lower retainer ring already installed. 2. NO COLLAR / RING. This will require you to remove the ring and collar from your old shift boot. The collar is simple, just remove the retainer ring and install in the new boot. It's a tight fit so it may require some effort. Removing the old lower retainer ring takes a bit more effort. You will have to remove/cut the stitching from the boot and take out the ring, it usually is rusted/dirty. After removal, you can install the shift boot by attaching zip ties to the pre-made holes. 3. Shift collar only. Some like the subtle black look, with this option, we will send a black shift collar. 4. Lower Retainer only. With this option we will send an extra retainer ring so you don't have to remove your old one.