From Auto-Otaku
Another interesting YJA find here, a race-tuned 2 door KGC10 Skyline. As you can see. this is obviously not your typical Hakosuka build. The GT wing and rear air diffuser look like they would be more at home on an S2000 or Evo then an early Skyline.
The engine is an L-series stroked to 3.1L. Check the purple anodized trumpets on the Solex carbs which are a nice touch. Among the huge list of modifications are a KPGC110 radiator and master cylinder, and a one-off oil cooler and exhaust system. Underneath is R31 Skyline suspension.
In the interior are twin Recaro seats with 5 point harnesses and a 7 point roll cage. The wheels are Watanabe R-type 15x8.5 -15 in the front and Panasport 15x11.5 -15 in the rear. The headlights have also been retrofitted with HID bulbs.
She can be yours for a little less than $15,000 US. Check out the auction right here http://page13.auctions.yahoo.co.jp/jp/auction/r43415591 .