Hi at the moment my 98 classic is fitted with a pipercross induction and to be honest i'm not that impressed with it, I've been reading various posts and alot of them seem to be sayin that putting the standard box back on is the way to go.

If this is the case which panel filter would you guys recommend?

 

The K&N filter is highly praised as is the Green Cotton item (which I have just fitted). Their are others from the big Jap names HKS and Blitz, also you could use Simota a newish name. It all depends on the bugjet you have.
Hope this helps.

Brent