A universal foam air filter manufactured by Pipercross. An ideal accessory for anyone fitting a set of bike carbs using one of our custom manifolds, or twin 40 weber/dellorto’s. Please refer to the chart below for sizes and use the menu’s to specify your choice. Pipercross recommend a minimum clearance of 25mm from the mouth of the trumpets to the air filter, so please consider which filter is best suited to your trumpet lengths.