Bonneville America Forums Forums Technical Forums Performance Mods FNG-Questions

You guys missed the airbox. Either drill the air box at the bottom and or remove the snorkle at the top to allow it to breather much better. Cheap way to do the exhaust is to knock out baffles DO NOT remove the reducer cone at the header end that will give you a little back pressure. As far as the air box goes I reccomend the Freak kit to remove it completely and replace it with K&Ns. The advantage to the freak is brackets to mount the side cover and chrome filter shrouds.(they bolt to the airbox) that and it comes with new main jets. If you do any exhaust or intake mods BE SURE TO REJET THE CARBS. That is very important and not difficult to do.Dinqua has a jetting calculator on his web site for down load. just enter the way your bike is set up and the altitude you live/ride at and it will tell you the jets to use.I have tried it on several bikes and so far it hasn't missed.