Yoshimura Alpha T Works Street Slip-On Exhaust KTM 390 Duke / Rc390 One look at an Alpha T system and you know it's something special! Utilizing a tapered conical sleeve that produces a higher GP tone than its bigger brother Alpha, it is also lighter than the original Alpha. Features: Durable stainless steel muffler featuring Yoshimura's exclusive Works Finish and fitted with a carbon fiber end cap Beautiful shape resulting from Tri-Oval design heritage Unrivaled fit and finish due to improved production tolerances Optimized for maximum flow and improved ground clearance Muffler volume and shape produces that magic tone Yoshimura is famous for Optimized for durability and ease of service Stainless steel tail-pipe The Yoshimura Works Finish takes on a unique coloring after it goes through a heat cycle on the motorcycle that looks much like those titanium works components that factory racers use Uniform heat coloration Increased fatigue strength Increased scratch and stain resistance