PLEASE NOTE: WE STRONGLY RECOMMEND THE USE OF A FUEL TUNER ON THE 2017 MODELS WITH SLIP-ON MUFFLERS.
This 4-inch slip-on system gives you the sound and look you would expect from a premium muffler, at an incredibly low price.
The 4-inch diameter, 909-Twins feature a unique scalloped and smooth rolled outer tip that is matched with a scalloped inner tip. This "Twin" tip design gives an elegant look, especially because there are no visible outer screws securing the core. We use a 2.25-inch perforated core for its traditional and recognizable Harley sound.
