I can confirm that MagnaFlow cat back 19324 is a direct bolt on for the 1.4T. MagnaFlow does not list an exhaust for the 1.4T but has a pair for the 2.4L. I took a chance and tried the resonated single outlet 19324 and I will say it was a great addition. The stock exhaust was raspy between 2000 and 4000 rpm under load after I installed the catless downpipe. Videos online of the dual tip unresonated seemed raspy on the 2.4L so I didn’t want to take a chance on that version. Install was easy and fitment was perfect. This is for the Trailhawk so routing takes into account a driveshaft and differential even though I am FWD. The sound is deeper at idle and slightly louder at WOT but around town cabin noise is about the same volume just deeper. The is no rasp at all and I do get a pop when shifting at higher rpm, think of a muffled Abarth. Overall I am very happy with the looks and sound of the system.