Hi Folks,
Been running the kev O2 and fuel mod for 2 weeks now. They've made the bike feel much better. Today installed the dna filters Stage2 (with a stage 3 air flow). The kev mod set just past 6 O'clock. There is a booming type sound coming from the bike , doesn't seem to be the exhaust (stock). Seems to be coming from the airbox. Only noticeable on the move. Is this normal?


Apologies if this has been covered before. This bike carry on is all new to me.