I have 2 separate items for sale.

On the left is a lower intake snorkel for F6 typhoons and few other models? Goes in the lower half of the airbox and draws more air from behind the headlight for your B-Series. Item is seen as bit dirty but works fine.

On the right is a K&N panel filter for a BA/F regular airbox. Dunno what other models it suits.

Both items are $50 each. Postage will be $10 per item, or pickup can be arranged if you're in Western Suburbs of VIC.