worth it???

looking for the most bang for my buck on a stock gt without using nos

i heard the most significant impovement per dollar is a K&N air filter and i already got that so now im looking for something else make it faster and for 350 bucksdiablo sportseems to guarentee alot

 

You're better off to wait and get a few more mods under your belt before you buy a tuner as the gains don't match the price. Not that anything does on a 2v though.