Hi Joe! Welcome to CRF's Only and congrats on your CRF250L!
On the mods it depends on what area of the bike you are looking to improve or what type of riding needs you have based on the kind of riding you do. If you are riding off-road then first things should be bike protection (skid plate, radiator guard, master cylinder guard, handguards, etc.). if you are looking for more power check out our Performance Packages. You can find these in our CRF250L catalog:
If you have questions let me know.