Hey guys I got a raptor right now with the lid off and pro design K&N. Would the power increase from that to dual K&Ns with no airbox at all be worth doing it? Also i it hard to get the jetting all right again. Im strictly a duner so no need for the airbox anymore.

 

remove the airbox,i did major mods at the same time but it has been tested to give you 1-2hp increase...

 

I would go up a half to a full size on the jetting depending on how rich or lean you are now. The power increase is across the whole RPM range. It's the only way to go for duning IMO.

 

Alright thanks sixsixt I was hoping you would respond to this question. So what and how much is your set-up you got going?