I had one on my 1.0 cvt... and I felt that it pulled through the gears more smoothly... downside was foot down and fuel needle went down quicker than it would have without the k&n cone... despite this I felt it was worth it as I didnt have to clean the cone-filter for a long time... so it worked out even... I would have spent money on new air filters!! I started cleaning it every year after that though... Id say panel filter... if I could go back... Id have got the panel one... and that lovely roar... dear God I love that sound!!!