Triumph bonneville airbox mods

Oh man, what a difference in speed. I did the 19t sprocket conversion 1st and from 4th to 5th it would loose power. Now with the Bellmouth on, my bonneville eats up the road (hauls ass). Every gear change blows my mind,the power is there immediately. Next is k&n airfilter then I will do a dyno tune. Thanks for watching 🤘