Plan about 1-2hrs for the install, hopefully quicker with the help of this thread. To start, the hardware included from PumaSpeed is hardly adequate, especially to maintain the angle of the splitter correctly at speed. You will need to pick up 3 20mm thick rubber washers (hard but pliable) and 1 40mm trim screw (same thread as the OEM black trim screw). You'll also need a 1/4" drill bit and 7mm driver/socket. First remove part of the soft plastic trim that extends from the front of the wheel well - that attaches to the OEM lower diffuser and bumper cover. Remove the 7mm trim bolt from the fender liner to the bumper cover and 7mm bolt where the trim attaches to the bottom of the bumper cover. You will not reuse that bolt. Cut off only the section that attaches to the bumper cover, leaving the area that is affixed to the OEM diffuser. Next, align the splitter and mark where the OEM bolts reside on the bottom of the bumper cover and drill holes in the splitter. These are the two OEM trim bolts found on the bottom edges of the bumper. The reason why you are using the OEM bolts is because the bolts will go through the splitter, bumper cover and plastic inner liner with the metal clip in the liner holding it all together. This is a pretty damn secure setup. You will not use the two holes on each edge of the splitter, only one of them - see below. Once this is done for both sides (L and R), then drill through outermost hole on the splitter into the bumper cover and use the smaller bolt, washer and nut included with the kit. Do this on both sides. Next drill a hole in the splitter about 2" ahead of the splitter hole (see pic) and attach to the bumper using the small supplied bolt, washer and nut. Lastly, using the holes in the splitter (rear section), drill through the bumper cover tab and affix using the Long Puma bolt, 20mm rubber spacer and washer/bolt. Do this on the left and right tabs. Then locate the OEM bolt just off center, left side and drill through the splitter and use the 40mm trim screw, 20mm rubber spacer and attach to the bumper. Reinstall the trim screws (L and R side) that attach the fender liner to the bumper. Done! With the 20mm rubber spacers your splitter should be perfectly level and with 11 bolts holding it all together it will hold up at speed.