I want to get some power out of my ZETEC
I have an 03 ZX3 which is pretty much bone stock. The focus is my daily driver and I am loving the mpg. My question is what can I do to get some performance gains out of the ZETEC without losing many mpg? I really want to hear any possible scenarios except for a motor swap(don't get me wrong I would love to put a v8 in the thing). I really appreciate any input because I am a noob to the ford community and especially the focus.