hey everyone,my name is andy im 21 and live in northallerton. ive just become the proud owner of a 1997 nissan skyline r33 gtst in white. it has a few mods, 18 inch white koenig monster split rims, gtr sideskirts, gtr rear spoiler, tinted rear windows, blitz nur spec ss exhaust, hard pipe kit, blitz dump valve and turbo timer, hks induction kit and boost gauge. i love the car to bits its awesome. does anyone know how to convert them from kph to mph? what do i need and where do i get it from? any help is much appreciated guys.