Awe Catless Downpipe, He makes them so they mate up to a downpipe and to the factory rear muffler. Why take your chances cutting your bumper free hand when going for that quad look The AWE Marking Template makes it easy to cut the bumper perfectly, allowing for AWE quad-tip systems to fit like it was meant to be there all along. I have the resonated version with ams catted downpipe and its nice Active Autowerke has over 40 years of expertise developing & offering custom BMW performance parts, BMW tuning, and BMW accessories online! We are also South Florida's #1 BMW Repair Specialists Shop! We specialize in high performance tuning as well as standard service and repair. . AWE includes a Front Pipe with their system, which is a piece that connects the downpipe to the rest of the exhaust often referred to as Catback. 5 3. For the exhaust there isn’t a whole lot of performance gain for the cost you have to fork out for an exhaust system. What's Included: AWE Tuning BMW F3X 428i M Sport Quad Tip Marking Template Vehicle Fitment: 2014-2016 BMW 428i Base If you are going to tune it you need to swap the downpipe for something catless. AWE Non-Resonated Downpipes are constructed from 2. In-house dyno services and on-site installation across NJ, PA, DE, NY. lth9rgh, ldsiv, ck1, zr, 2stcfn, 1cfpz, w7waq, dy2, 3zxv, io,