The IS300 Grounding Kit is now an 8 wire kit custom tailored for the IS300 that are tripple the thickness for greatly needed electrical current. Each kit will come with 8 wires, longer bolts, tie wraps, and install instructions. Installation is simple, takes about 30 minutes, and all that is needed is a socket wrench set (10mm). Customers say 'car cranked over a lot quicker and more effortlessly. It settled to a nice buttery smooth idle. 7 day delivery typical.