OK, cusiosity got the best of me. I checked my original BRE Spook to see how many fasteners. I bought my 4/71 240Z new in November of 1971 and installed the Spook in the Spring of '72 by carefully following the included instructions. I took it off in April of this year after the "Z" was pulled from a 15 year "nap" for refreshing. It was held on with 9 bolts & large washers. Two bolts went into each turn signal nacel and five went through the center of the front valance in two rows (three bolts near the trailing edge and two forward near where the spoiler bends down away from the valance). Here's what's odd. In the row of three, the center hole is an inch off-center toward the driver's side and the end holes are exactly 18" apart with the driver's side hole being 8" from the off-center hole and the passenger side hole being 10" from the off-center hole. The forward row of two holes are 9" apart and centered. I can't believe I was so exact in my measurements, yet the center hole was exactly an inch off center. I know I went by the instructions and probably still have them somewhere. Was there a factory drain hole in the front valance that was used as the 1st off-center mounting hole? I can't tell by looking at the original parts, but the off-center hole in the Spook looks cleanly drilled and perfectly round, unlike the rest of the holes that I probably drilled at the time. I seem to remember that there was a pilot hole to use and then work out from there for the rest of the mounting holes - but that was 35 years ago and my memory storage has been full for quite some time. It i s, however, an original BRE Spook and I installed it in my driveway all by myself. Those were the Good Old Days! Dennis 1971 240Z Original Owner