gady mate and welcoe to the site... as jas sed what do you have in mind.... a good place to start is usualy to give the car a full service your self then you can get a rough idea of were to start or what needs doing....
hey mate if ya interested in bit more power then take ya throttle body off and take out ur air flow restrictor thatll give ya bit more power and shuld allow u to pull two wheels instantly.
yes that will work but only if you have a s2 engine the bell ,outh never came out in the s1 engine! The only down side to taking it out is the car might idle a bit rough but realy you wouldnt notice it!