Recently purchased a 2015 A4 sline black edition Nav and over the moon with it. After coming out of a 2010 A4 sline there’s noticeable improvements all over but now to the other part, my old A4 had the CAHA 170hp engine, but my new A4 has the 148hp CSUA engine. The power difference doesn’t look much on paper but in the real world for over taking its a pain in the **** and need to get her mapped soon. Has anyone mapped this particular engine and had any issues. I’ve been quoted a few figures ranging from 180 hp up to 195 hp. All these are off the shelf maps from the likes of top gear tuning. I’m over in Ireland so don’t have a great selection of mappers here.