All replacement muffler’s are intended to replace an existing same muffler or upgrade the muffler for that bike. All mufflers will only fit SPC headers and are intended to pair with headers for the exact fitment of that bike. For example, if you already have an “M8 Softail” Lanesplitter system, and M8 Softail Cutback, Lanesplitter, or Big Bore will fit that setup. Muffler’s WILL NOT work with mix matched headers meant for other model bikes. They are made VERY bike specific. ALL Muffler orders will include springs, clip nuts, and bolts that attach to the clip nuts. *(SPORTSTER fitments: Big Bore’s WILL NOT WORK)
