KTM, like many other motorcycle manufacturers, has been known for its innovative designs and engineering. In recent years, KTM has introduced certain models with exhaust systems that resemble those found on 2-stroke engines, even though they are actually 4-stroke engines. This design choice is primarily aimed at improving performance and optimizing the power delivery of the motorcycle.
The exhaust system plays a crucial role in an engine's performance by controlling the flow of exhaust gases. By altering the shape and design of the exhaust header and pipe, manufacturers can influence various aspects of the engine's characteristics, such as power delivery, torque curve, and throttle response.
The design of the exhaust on newer KTM 4-stroke models that resemble 2-stroke exhausts is typically intended to provide improved low-end and mid-range power. These designs often feature a shorter header pipe and a more compact muffler, which can help to create a stronger scavenging effect and increase the velocity of the exhaust gases. This can result in improved throttle response and more torque at lower RPMs, which can be beneficial for off-road or enduro riding where low-end power is important.
It's worth noting that KTM's design choices may not be universally preferred by all riders, as individual preferences can vary. However, the unique exhaust design is a deliberate engineering decision aimed at enhancing specific performance characteristics of the motorcycle.