One piece Air Filter

[nikscott]

Anyone any ideas on a pipercross style filter for my Caterham. Fitted with a 2 litre zetec on throttle bodies. I dont want to put back on the K&Ns. Want something a bit more modern looking. Pipercross wont fit because the retaining buttons are to high & foul on the bonnet. I tried BHP Plus who supply ITG Filters but they havn't come back to me!