any air filter fits really mate, just up to you what you want to get, very easy to fit, get your haynes manual out and read how to take the stock one off if you need to. just a few bolts and a jubliee round the throttle body.
As for the cams theres a tutorial somewhere yeh, and the shims may need changed if they have been worn by the cams. but check the ttorials and youll be laffin.
