EMD Auto Wheel Spacer Flush Kit For BMW X3M *OUT OF STOCK ETA 7/31/26*For those seeking a more aggressive stance on the stock 21" wheels, our flush spacer kit will help you get there! Included in the kit are: (4) 15mm Wheel Spacers (20) Extended Wheel Bolts Our wheel spacers are manufactured out of high quality 6061 T6 aluminum, which is black anodized for corrosion resistance. We also machine slots into the back of each spacer, for ease of removal (gone are the days of chiseling the spacer to get it off the hub!). We