Installed a new Pipercross Air filter today, they are abit tricky to install as the filter edges tend to extrude slightly putting on the top air box cover on its just a matter of going around poking the filter edges back into its proper location. Noticed the bike started alot easier and felt more sharper/responsive revving the bike. Tomorrow is looking like good weather so will go for a spin and see how it feels. Got pretty good service from pipercross in the UK, its was mailed within 2 hours of ordering it online and received it back in Aus 7 days later.