With an energy engine, well.
Could do a few small beeather mods. I rekon you have a Mark 1, so you could take off the TB as said and clean it up nicely, will really make a difference.
A decat and a exhaust will show gains of a few BHP, but dont expect 10BHP over what the engine does without going into major rebuilding.
Thx man.. I don't want open the engine yet..
Sorry for my answer, but... What is TB?..
TB is short for throttle body