The problem with a dual system is the space available they tell me. the gas tank design makes it nearlt impossible to run it out both sides, like on the banshee's and two silencers on the same side as the stock muffler would likely rub the tire's when the suspension travel's, the said that the 27 and 28 inch tires everyone is running would rub a twin muffler system. Maybe somebody will figure out a design that will work, but I guess for now we'll have to take what they got.

 

OH, by the way, Jeff I think you'll like this one. Twin Air has a filter out now,I've had it in my 650 a couple weeks now. If anyone want's one they are about 22 bucks. phone 1-610-756-6818. the part number for the Pra. 650 air filter is No. 151911.

 

I have K&N in some other stuff, and I like em, but I am deciding whether to wait for K&N to make one for the 650. What do you think, Stakk? Is the twin air one better than K&N or should I still wait?

 

I think as lean as they are already, you'll definitely need to rejet with a K&N. I think they are lean everywhere the pilot jet's, the needle's, and the main's, all need to go up a little. as far as the Twin Air being as good as the K&N, yes it is,BUT foam filter's like T.A. or UNI do flow a little less air than the K.N. but they do flow better than stock. What I'm trying to say is it depend's on where you ride. if it is real dusty,muddy,wet, etc. go with the foam type, like the Twin Air the K&N's are good for competition when max airflow is needed, but I don't think they stop as much dirt as a foam filter. I have use'd them both and that's just my opinion.