if your looking for an illuminated shift knob just go up to autozone or the closest auto part store. (o rieleys and autozone are usually the big ones for that one size fits all stuff) but personally i think they just look to cheap to go in a IS. I too have a scratched up metal plain knob i been needing to replace (cuz it loox icky around all my nice interior :P) I know if you go to any toyota dealership or lexus dealership tho they sell the oem ones along with some aftermarket ones. Again you have to deal with dealership prices... but its a shift knob, wont be that expensive, and they look a lot better than that universal crap (Look at me i drive a honda with led shifter kinda crap) Also check out lextasy.com They have a massive selection of stuff for lexus's especially is300's, some people here seem to give them a bad rep but ive used them on several occasions and ive had no problems. So check em out if you havent already. have a good'n