seriously i know this has nothing to do with crms but how much hp does a 2000 xr 400 have and wat mods can be done??

An illustration of XR400 power. Less than CRM as I have said already - http://www.bigbearbikers.com/bbtr/dynojet.html

Loads of other websites and literally thousands of mods that 'may or may not' improve power but will cost big bucks and most make your bike VERY LOUD.

XR400 - more weight, less power & better suspension.

xr400 = pure reliability

... until you start to mess with the original .............

i wont just after market pipe ride to africa ;)