OK, I'm sold - I've decided to get an OS. .18 CV-RX for my RTR MT2.
[link]http://www2.towerhobbies.com/cgi-bin/wti0001p?&I=LXGGP7&P=0[/link]

However, I suspect I will have to do some upgrades to the drivetrain for it to handle the power, right???

A friend suggested all that I will need is:
- 2x HPI Heavy-Duty Final Gear Set P1x38T/P1x13T ([link]http://www2.towerhobbies.com/cgi-bin/wti0001p?&W=001057081&I=LXJYM2&P=K[/link])

What else is critical and required before I put in the bigger engine? Universal dogbones, MIP CVDS - new pinion/spur???

Any suggestions would be much appreciated.

Thanks
Matthew