AWE Touring Edition Axle-back Exhaust, Quad Outlet for BMW F3X N20/N26 328i/428i - Diamond Black Tips (80mm)

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The AWE 428i / 430i Touring Edition Axle-back Exhaust

The AWE Touring Edition Axle-back Exhaust is a straight-through axle-back system available as dual outlet (single side, two tips) for the 428i / 430i, or quad outlet (two tips on each side) for the 428i, and leverages AWE’s proprietary drone-canceling solution, 180 Technology® , to produce the perfect, drone-free exhaust note. If you’re unfamiliar with 180 Technology®, learn more through this brief 180 Technology® video.

Sound Perfection: AWE 180 Technology®

Perfect tone comes compliments of AWE 180 Technology®.

As exhaust gases exit the N20/26 and B48 engines 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.