has anyone used the K & N drop in filter? i just ordered one and was wondering if it is going to make any difference at all. i just bought the car, a 2003 SVTF, and i figured i would repalced the filter. any positive or negative feelings on this one. i like the idea of keeping the stock air box...
i am looking at a svt zx5 and it has a few things done to it. just wondering how big of impact they have or if i should put the stock stuff back on. the seller has the stock stuff so it wont be hard to switc back. so here are the mods
ford racing short throw shifter
smaller undrive pulley...