15-19 YZF-R3 Two Brothers S1R Black Series Full Exhaust Aluminum
2015-2019 YZF-R3 Two Brothers Racing S1R Black Series Full System Exhaust Aluminum Instantly the S1R takes off weight and adds noticeable performance. Containing a lightweight spiral-wound perforated core, machined spring-retained connection and carbon fiber material, the S1R will take your bikes performance from great to amazing. The S1R exhaust is a state-of-the-art product from Two Brothers Racing. The system features...