can enyone plz give me some info on geting a bit more power out of me focus its a 03plate 1.8lx 5dr i have a air filter on at mo but want a feed a hose for more air and get a stainless steel pipe from carb 2 filter? and i want 2 change the ecu or remap or somethink but not spent alot some 1 said about puting bits on it from a mondaeo 20l engine is this rite or like the ecu and throtle body? stuff like that plz help or post info

 

There are loads of threads to find this info in, with input from a lot of experienced focus owners, who probably won't want to post the same thing over and over again.
Exhaust system and manifold, Decent filter and cold air feed and maybe a larger throttle body and good remap, seems to be the conclusion, but this has been talked about quite a bit and opinions vary a little, so I'd say you need to find some of the past threads.
As for the pipe; I'm guessing you mean between the filter and throttle body, and you can get s/s pipes from most aftermarket retailers (try deamon tweaks, burton power, etc) , but you'll have to find the measurements neccessary to order the pipe.

 

id get a st170 manifold (this needs slightly modding to fit i beleive)
stainless stell exhaust, piper mangex etc etc
maybe a remap and light weight flywheel

about as good as youll get without spending big money, obviously helps if you can fit the parts yourself.

good brakes and suspension will help to make the car feel quicker to as you can give it more