Hi there, i have A mazda 323f, 1.5, first thing to do is, if it doesnt have a spoiler then get one from a breakers yard from a 2.0ltr zxi, take the front bumper spoiler and side skirts too, this will instantly make it look better, and make it look like the 2 ltr model, then get some fog lights for the front! that will come to no more than £30-40
Then with £100 buy some lowering springs for it, you can pick them up on ebay, but beware you will need a whole weekend to do this, with compressers.
Then with £70 get a k and n induction kit, you can fit this in 10mins,
For exhsust its a custom made job, cant buy them, you will have to go to powerflow.
I have just left the exhaust but put a de-cat on it, sounds great and performs better!. dont bother with back boxes, sounds tacky. de-cats are custome but only £70-80
also change the tail pipe, get a twin end one, cut off the old one and bold a new one on, only if its a single, make sure that fumes are going into both holes.
thats about it, dont tint the windows tried it, and its looks terrible, on that car.
got a tow bar? take it off! lol
polish up the rocker cover! takes weeks but can look like a mirror!