is this a good thing to buy for my car it is a 2000 V6 mustang all that I have done to it so far is subs amp and a cold air intake and 17" cobra rims and the Performance exhaust is on it's way to my house right now so is the throttle body spacer a wast of money or will it do somthing to my car with a stock engen http://wheelskin.com/Merchant2/merchant.mvc?Screen=PROD&Store_Code=W&Product_Code=SPE-38015 thanks for all the help