The AWE Tuning BMW F32 328i/428i Exhaust Suite is available as follows. Some fitments depend upon N20 versus N26 motor type, so be sure to check our simple N20 vs N26 guide to verify motor type. The single side (two tips) axle back F32 328i/428i Touring Edition Exhaust, featuring 180 Technology The quad outlet (four tips) axle back F32 328i/428i Touring Edition Exhaust, featuring 180 Technology The F30 328i/428i Touring Edition Exhaust + Performance Mid Pipe Package, available in both single side and quad outlet The 3D printed bolt on marking template to turn a single side bumper into a quad tip bumper (available for both Non-M Sport and M Sport cars) All F32 328i/428i systems are outfitted with 80mm Chrome Silver or Diamond Black, double walled AWE Tuning tips. The AWE Tuning Touring Edition Exhaust is an axle back system that leverages AWE Tuning’s proprietary sound cancellation solution, 180 Technology™, to produce the perfect exhaust note, drone free. If you’re unfamiliar with 180 Technology, learn more through this brief 180 Technology™ video. The AWE Tuning Performance Mid Pipe is a key component in obtaining the perfect signature aggressive yet sophisticated note from the exhaust. This resonated piece removes the factory secondary cat (on N26 Motors) and replaces it with straight through 3” T304 stainless steel tubing. As exhaust gases exit the 328i/428i engine and flow into an AWE Tuning 180 Technology™ equipped resonator, they pass through strategically located ports, and into reflection chambers. Sound waves, carried by these exhaust gasses, bounce off the walls of the reflection chambers. By controlling the size and location of the ports and the chambers, we also control when the sound waves exit the chambers. The specific timing of when the reflected sound waves rejoin the main exhaust flow creates a one-hundred-and-eighty-degree out-of-phase sound wave that cancels out problematic frequencies. More on AWE Tuning 180 Technology in the tab above.
