[99RM250]

Well while im rebuilding my motor i thought i would put some good modifications on it...this is what im planning so far...Competition air filter, aftermarket reed valve. forged piston, forged rod, aftermarket head, and a different fatty pipe... i think i know what i brand i want to pick on all the items except for the head...pro circuit was the only place i could find a aftermarket head at...any suggestions on the brands guys? thanks!

also i thought about boring it out...what are the pros and cons of this and how much should i bore it over if i do? thanks!!

 

[mxdude14]

I dont know who makes them but you can buy high compressional heads to increase the power alot.
Later
Aaron Naylor

 

[99RM250]

I dont know who makes them but you can buy high compressional heads to increase the power alot.
Later
Aaron Naylor

well the only aftermarket head i have seen for our bikes is at pro circuits website...i was wanderin if anyone has ever used it?

also i have decided to go with a Pro x piston...are these good pistons?