Description Reviews MINI Cooper S Intake Tube for the N18 is the tube that goes front the mass air flow sensor to the turbo. On the N18 Cooper S we have been seeing that tube popping off of the turbo side (which is why we created the DT TIF) as well as cracking and/or actually snapping off or cracking. This is a MINI OEM Part. 1 Review 5 N18 Intake Tube Posted by Stacy on 23rd Jul 2019 Perfect fit and less expensive than the dealership!! Great products and a great website!!!!