the "stage" series are old, and out of date.
they have been replaced with the s100 and s200 systems.
225 isn't a bad deal, but you gotta find someone weith stage 4 software to tune you, or s200 dealer package, and make sure they set their rom editor version to the stage version (i think its 2.5???)
its kinda lik ebuying an old computer- it still works, but its just "slower" than what's new out there.