Looking for a decent filter before I get a remap I'm open to suggestions

Keep the original one

If its just a panel filter, as above just get a new original one.

 

You'll save about 20 odd quid, as the so called performance panel filters give virtually no benefit over standard

I have to agree with above made no diff to performance DID make a small amount of sound diff

If you can get one cheap it's worth popping one in just for penis waving

Worst thing on cars sound like bees nesting under the bonnet.