What are the aftermarket exhaust options?
The main decision is whether to go with a slip-on or a full exhaust system. Go with a full system if you regularly ride at greater than 8000 rpm. There you will enjoy the full benefits. Full systems are quite a bit more expensive than slip-ons. Two choices are the Yoshimura or the Akrapovic. The Akrapovic is more expensive, louder, and makes a bit more power. Hindle and Leo Vinci also make full systems. You will want to rejet the carbs if you go the full system route. You also lose the benefits of the exhaust valve. If your riding style is such that full throttle, greater than 8000 rpm runs are infrequent then a slip-on is a better choice. A slip-on provides a nice mid-range to high rpm boost with an acceptable loss at the low end. Rejetting reclaims the low end and boosts the mid-range and high-end even more. Choice of slip-on is mostly a personal choice based on tolerance to noise level, appearance, and cost. The Factory aftermarket exhaust is among the noisiest, the Yoshimura Zyclon
