Introducing the original EX-Motorcycle 4-1 Exhaust Collector for BMW K Series, a high-quality aftermarket solution for replacing the stock exhaust on your BMW K series motorcycle. This collector is designed to provide improved performance, durability, and a sleek appearance.
Made from 304 16 gauge stainless steel, this collector offers excellent resistance to oxidation, corrosion, and long-lasting durability. It is fabricated using computer-controlled laser cutting for precise measurements, then rolled and TIG welded for a strong and seamless construction. The finishing touches are done by hand to ensure a polished and professional look.
The collector features four inlets that securely fit over the stock header pipes using a push-fit mechanism. It is held in place with two swivel springs (not included) for easy installation. The outlet is positioned at a 30-degree angle to improve ground clearance and has a 2-inch (50.8mm) outside diameter, allowing for compatibility with most aftermarket silencers.
For installation, the collector comes with spring tabs already welded in position. It also two spring tabs that need to be welded to your stock header pipes. It is designed to be a slip-over fit for the 8-valve K100, although you may need to loosen the header bolts to align the ends of the pipes. It can also be used on the 16-valve K1100 by cutting the headers from the stock silencer or by using K100 headers.
Upgrade your BMW K series motorcycle with the 4-1 Exhaust Collector and enjoy improved performance, durability, and a stylish appearance.