where did you get the airbox and intakeya definantly a pc3 also get rid of the stock air intake i used to have the mod quad kit and lid just got rid of it and got a custom air box w/new intake and it rocks!they sell others w/o a box but i ride were theres alot of water crossings so i wont risk no box!the k&n im using now is huge it has a 4 1/2 inch mounting radious its freekin huge !