Back when I used to ride the 80 class I used a pro circuit works pipe and a R304 shorty silencer. I highly recomend pro circuit. What kind of riding do you do?
thanks for the advice, i do the local races but this year im going to do the nationals and thought about getting a new pipe,and i also thought about getting a v force do you know if there anygood
Both on my YZ85 that I raced and on my current YZ125 I have a full Pro Circuit exhaust system and the V-Force 3 reed system on them I highly recomed them. With these changes you won't notice a huge gain in but I will give crisper throttle response.
As far as the nationals go you may want to use the the Standerd 304 silencer rather then the R304 shorty. I use the standered 304 for outdoors motocoss and the shorty for supercross for the winter time.