YOSHIMURA YAMAHA YZ250F 24-26 YZ250F/WR250F 25-26 RS-12 STAINLESS FULL SYSTEM
While other exhaust brands just carried over their Yamaha YZ250F offerings to include 2024 model, on the dyno and track, the new YZ told Yoshimura there was more on the table. So their R&D team went to work to optimise the new Yamaha.
The adjustments to their spec proved what the 2024 YZ was telling their team was right. The revised RS-12 Signature Series full system added 2.5% max HP and 2.8% max torque over stock. This is why Yoshimura develop and test all of their products!
The RS-12 mufflers have loads of features including a PTF insert system that makes changing inserts a breeze and an optimised muffler shape with added volume and brake calliper clearance.
RS-12 Features and benefits:
- Aggressive intelligently designed, the RS-12 asymmetrical shaped muffler allows maximise capacity and incorporates a resonance chamber for managing sound and increasing usable power. RS-12's unique profile also provides more clearance for tyre and brake calliper.
- Improved performance gains with refined linear power delivery.
- Just like the works systems our Factory Racers use, RS-12 systems utilise precision machined joints. Machined joints provide a superior and exacting fit for joints by better securing the seal between two surfaces with a perfect 360 degree contact surface which translates into improved system life, fit and performance.
- New patent pending Precision Taper Fit (PTF) insert ring makes it easy to install and remove sound inserts and spark arresters.
- Works-look matte carbon fibre end cap with industry leading design, innovation and detailing as expected from Yoshimura.
- Carbon end cap covers the RS-12 inner cap, thus improving looks, while providing easier service as compared to other sandwich mounting designs most commonly found in the industry.
- Proudly designed, developed and made in the USA!
- Repack Kits, optionalĀ InsertsĀ andĀ Spark ArrestersĀ are available for all models
ADDITIONAL INFORMATION
VIEW INSTALLATION INSTRUCTIONS
BIKE FITMENT
YAMAHA
- WR250F 2025-2026
- YZ250F 2024-2026
- YZ250FX 2025-2026
Product Information
Product Information
Shipping & Returns
Shipping & Returns
YOSHIMURA YAMAHA YZ250F 24-26 YZ250F/WR250F 25-26 RS-12 STAINLESS FULL SYSTEM
YOSHIMURA YAMAHA YZ250F 24-26 YZ250F/WR250F 25-26 RS-12 STAINLESS FULL SYSTEM
While other exhaust brands just carried over their Yamaha YZ250F offerings to include 2024 model, on the dyno and track, the new YZ told Yoshimura there was more on the table. So their R&D team went to work to optimise the new Yamaha.
The adjustments to their spec proved what the 2024 YZ was telling their team was right. The revised RS-12 Signature Series full system added 2.5% max HP and 2.8% max torque over stock. This is why Yoshimura develop and test all of their products!
The RS-12 mufflers have loads of features including a PTF insert system that makes changing inserts a breeze and an optimised muffler shape with added volume and brake calliper clearance.
RS-12 Features and benefits:
- Aggressive intelligently designed, the RS-12 asymmetrical shaped muffler allows maximise capacity and incorporates a resonance chamber for managing sound and increasing usable power. RS-12's unique profile also provides more clearance for tyre and brake calliper.
- Improved performance gains with refined linear power delivery.
- Just like the works systems our Factory Racers use, RS-12 systems utilise precision machined joints. Machined joints provide a superior and exacting fit for joints by better securing the seal between two surfaces with a perfect 360 degree contact surface which translates into improved system life, fit and performance.
- New patent pending Precision Taper Fit (PTF) insert ring makes it easy to install and remove sound inserts and spark arresters.
- Works-look matte carbon fibre end cap with industry leading design, innovation and detailing as expected from Yoshimura.
- Carbon end cap covers the RS-12 inner cap, thus improving looks, while providing easier service as compared to other sandwich mounting designs most commonly found in the industry.
- Proudly designed, developed and made in the USA!
- Repack Kits, optionalĀ InsertsĀ andĀ Spark ArrestersĀ are available for all models
ADDITIONAL INFORMATION
VIEW INSTALLATION INSTRUCTIONS
BIKE FITMENT
YAMAHA
- WR250F 2025-2026
- YZ250F 2024-2026
- YZ250FX 2025-2026
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
While other exhaust brands just carried over their Yamaha YZ250F offerings to include 2024 model, on the dyno and track, the new YZ told Yoshimura there was more on the table. So their R&D team went to work to optimise the new Yamaha.
The adjustments to their spec proved what the 2024 YZ was telling their team was right. The revised RS-12 Signature Series full system added 2.5% max HP and 2.8% max torque over stock. This is why Yoshimura develop and test all of their products!
The RS-12 mufflers have loads of features including a PTF insert system that makes changing inserts a breeze and an optimised muffler shape with added volume and brake calliper clearance.
RS-12 Features and benefits:
- Aggressive intelligently designed, the RS-12 asymmetrical shaped muffler allows maximise capacity and incorporates a resonance chamber for managing sound and increasing usable power. RS-12's unique profile also provides more clearance for tyre and brake calliper.
- Improved performance gains with refined linear power delivery.
- Just like the works systems our Factory Racers use, RS-12 systems utilise precision machined joints. Machined joints provide a superior and exacting fit for joints by better securing the seal between two surfaces with a perfect 360 degree contact surface which translates into improved system life, fit and performance.
- New patent pending Precision Taper Fit (PTF) insert ring makes it easy to install and remove sound inserts and spark arresters.
- Works-look matte carbon fibre end cap with industry leading design, innovation and detailing as expected from Yoshimura.
- Carbon end cap covers the RS-12 inner cap, thus improving looks, while providing easier service as compared to other sandwich mounting designs most commonly found in the industry.
- Proudly designed, developed and made in the USA!
- Repack Kits, optionalĀ InsertsĀ andĀ Spark ArrestersĀ are available for all models
ADDITIONAL INFORMATION
VIEW INSTALLATION INSTRUCTIONS
BIKE FITMENT
YAMAHA
- WR250F 2025-2026
- YZ250F 2024-2026
- YZ250FX 2025-2026
