At present I have a pipercross cone filter fitted, it was on when I bought the car, however I read and I have to agree that this is a bad idea since it sucks hot air from the engine, and that a standard airbox with a K&N panel filter is alot better.

So I have obtained an airbox with above mentioned K&N panel filter, but what I wanna know is, is there anything you can do to the airbox to improve it even further?? de-restrict it perhaps in some way??

Any hints / tips greatly appreciated