ninjaz

Hi everyone, i have just bought a 2003 350z. i want to lower it by about 40mm, is it as easy as just fitting springs or will i need to change other parts like iv read elsewhere. Also i want to fit spacers aswell to push the rear wheels out a bit, does this affect the handling or wear the tyres? and how much will all this roughly cost? i dont have a massive budget but i dont wanna spend my money on parts that wont work or last long please help! thanks