Interesting stuff Jon. Although I haven't looked at my airbox yet, it would seem that any re-routing of dirty air feed would best be performed on a virgin airbox before MMC performed their butchery.
To that end do you or indeed anyone know the source of the airbox? It appears it may be a pre 2015 Mustang version as later ones had an angle feed from box to accomodate an air manifold that feeds from the front of engine not the rear as on Roadster.
ETA: if the source of airbox can be confirmed it's likely that a K & N slab filter would be available to replace the more restrictive paper one as below.
Last edited by Richard Wood; 12/12/1802:00 AM.
Richard
2018 Roadster 3.7 1966 Land Rover S2a 88 2024 Royal Enfield Guerrilla 450 1945 Guzzi Airone