As Andy says you've got to get the most out of it or you may as well buy a diesel....55 squidgy horse power? No thanks.
Ive had many modded 2 strokes in the past and ALL have been pretty unreliable in one way or another .
The MC21 i have now will be getting a set of pipes and a re-jet to suit and thats about it (standard pipes are far too quiet for my liking

The other thing is im pretty skint at the MO so standard 55 squidgy H.P = safe in my book

_________________
MC21R Repsol replica
SC36 'Fire storm'
RG250 MK3 GAMMA 'WALTER WOLF'
DR350SEV winter hack