Just about got the manifold sorted to link the 3 x twin GSXR750 bodies to the jaguar head.

Started thinking about filters, I'd love to run open Trumpets, but this engine cost the last owner £11,000, for a rebuild at Racing Green, so I'm not risking it.

What do people think of these type of filters:
Image deleted by owner

Or am I better with Trumpets and something like this:

Image deleted by owner

Will there be a vast difference on a 300bhp 4.2L Six??

first ones no!

foam ones YES

Agree. Top ones look like low flow breather filters. Bottom type, much better.

top ones are standard cheap kn style bike carb filters as seen on every ped in the land these days
not recomended for your application but also don't use the individual style foam filter socks they are shite.

trumpets into custom airbox would be best solution

I'd be making my own airbox if it were mine...

If that much has been spent on the engine then you should fit an airbox at the very least. Individual or twin foam filters will just restrict the air flow.