Hi all i'm thinking of doing stage 1 tuning to my 919 blade. Was wondering if the air filter would make the car sound any louder tho? I fitted a air filter on my old 106 ralle and that made the car sound great would it be similar on a bike engine tho. Also i have read that this tts jet kit and filter change may not be worth doing as very little gains is there any truth in this? also if anybody knows of anywhere i could get his work done costs and set up properly that would be a great help thanks for any help.

[Edited on 20/5/09 by polomouth]