The Alpha T slip-on claims to remove nearly half the weight compared to stock. Where the stock muffler weighs 6.7 pounds, the titanium Alpha T is claimed to weigh 3.5 and the stainless Alpha T weighs in at a claimed 4.3. The Yoshimura Alpha T exhaust will also bring a different style and new sound to your 2017 CBR. It is available in either stainless/carbon fiber or titanium/carbon fiber configurations, both offer the same amount of performance. The new Alpha T adds a couple of ponies and is 50-state emissions legal.