Well i've been sayin this for awhile now but I almost have enough money. I will be modding the suspension and evrything first but my question is, do i even need engine mods?

I will get sparks exhaust, K&N filter, cam mod, and thats all unless I need something else?

What do you guys have? (I will be racing A or B class MX localy and prolly some B class at nationals..)