Hey jim. Sorry i didnt get back to your right away i never check my profile for messages. anyways I run the hybrid gfb unit. Part number from gfb is "my03" and yes you can run it 100% recirculating, 50/50, or 100% atmospheric. Its a great bov and you can find them used for around 150-160ish in the forsale section.

hey kevin its jimmy from hvcc i was wondering what bov u had nd u can change ur recircualtion to b full or all noise?