Description
Yoshimura Street RS-12 Slip On For Africa Twin - 12401BS520
- Matte Carbon Fiber end cap
- All-new faceted end cap
- Exclusive Yoshimura Works Finish
- Made in USA
Fits 2020-2026 CRF1100
Weight: 8.7 lbs (compared to the stock muffler weight of 13.4 lbs — a savings of 4.7 lbs)
Materials & Finish: Stainless steel body with Yoshimura's signature Works Finish (satin/matte finish that develops unique heat coloration), matte carbon-fiber end cap, and a custom carbon-fiber heat guard.
Performance Gains: Increases horsepower (approx. +3.8%) and torque (approx. +2.7%) while smoothing out the power delivery across the rev range.
Muffler Design: Asymmetrical RS-12 profile built to maximize internal volume, manage sound output, and improve tire and brake caliper clearance.
Serviceability: Features a patent-pending Precision Taper Fit (PTF) insert ring that lets you easily install or remove sound inserts and spark arrestors without dismantling the end cap.

