my wife just bought me a 2000 zx9r. green/purple. the bike i always wanted. was looking at a newer bike but i found this bike and fell in love. near mint condition, and only 5000 miles. they guy who owned it before me kept it in a garage and barely rode it. i just replaced the stock exhaust with a muzzy full racing kit, and put a dynojet stage one jet kit. holy cow what a difference. the damn thing was crazy stock, but now its really crazy. what other things would anyone recommend i do to it?