ok what is the best set up i ve seen pro-design and herd of sparks racing new a-box. but whats the best for the buck. also i herd that that crank has a breather hose in the a-box that sucks in dirt whats the best correction for that

01 blu 660r
prm baja grab bar
gyt-r hour/tack

 

well i exclusively use pro flow on all my machines. and they have never let me down once, and i do alot of sand riding and we all know that sand is very hard to filter out cause the size of it...everywhere from local sand areas to glamis and have never been let down. and yamaha is known for crappy air boxes..so i suggest the pro flow kit!!

99 banshee
01 raptor


hammer down in nj!!!

 

I installed a pro-design filter on mine, works well. Personal opinion, throw away o-ring and use black silicone to seal adaptor. Breather vent, your dealer should have killer aftermarket crank breathers. Or do like i did, go to a vw hotrod shop and get an empi breather and go to the hardware store and get a 1/2 x 1/2 barbed connector, and just slip it on the hose.