https://boxerflow.com/ 2026-08-27 weekly https://boxerflow.com/images/boxerflow-rally-intake-r1300gs-airbox-covers.jpg BoxerFlow Rally Intake - high-flow airbox covers for BMW R 1300 GS / GSA https://boxerflow.com/images/bmw-r1300gs-oem-airbox-intake-covers.jpg BMW OEM airbox intake covers 13715A72831 / 13715A72832 for the R 1300 GS / GSA https://boxerflow.com/images/gallery/boxerflow-rally-intake-r1300gs-installed-tank-view.jpg BoxerFlow Rally Intake covers fitted to a BMW R 1300 GS, seen from the saddle https://boxerflow.com/images/gallery/boxerflow-rally-intake-r1300gs-installed-cockpit-view.jpg BoxerFlow Rally Intake installed on a BMW R 1300 GS, cockpit view over the tank https://boxerflow.com/images/gallery/boxerflow-rally-intake-r1300gs-cover-engraving-detail.jpg BoxerFlow Rally Intake open flow channels, fitted to the R 1300 GS airbox https://boxerflow.com/images/gallery/boxerflow-rally-intake-r1300gs-cover-branding-closeup.jpg Engraved BoxerFlow Rally Intake lettering on the installed cover https://boxerflow.com/images/gallery/boxerflow-rally-intake-r1300gs-left-cover-installed.jpg BoxerFlow Rally Intake cover on the OEM fixing point of a BMW R 1300 GS https://boxerflow.com/images/gallery/boxerflow-rally-intake-r1300gs-vent-slots-detail.jpg Open intake slots of the BoxerFlow Rally Intake looking into the R 1300 GS airbox