Yoshimura 265022S320 2024-2026 KTM 500/350 EXC-F RS-12 Slip-On Exhaust — +20% Max HP Gain

Yoshimura — High-Velocity Exhaust Flow, Transform Your Dual Sport into a Performance Powerhouse

The 2024-2026 KTM 500 EXC-F and Husqvarna FE 501S are notoriously restricted by their heavy, quiet stock mufflers, which trap heat and choke off the engine's natural torque. This results in a "lazy" throttle response that makes clearing technical trail obstacles harder than it needs to be. The Yoshimura RS-12 Slip-On is the ultimate "uncorking" solution, delivering dyno-proven gains of 20% max horsepower and 8.2% max torque—unheard of numbers for a slip-on system—even with the spark arrestor installed.

Built with "Factory Quality" precision, the RS-12 features an asymmetrical profile that maximizes internal volume while ensuring your KTM 350 EXC-F or Husqvarna FE 350S maintains plenty of clearance for the rear brake caliper during hard landings. The system utilizes Yoshimura’s patent-pending Precision Taper Fit (PTF) insert ring, making it simple to service or swap inserts. Designed and manufactured in the USA, this slip-on centralizes weight to improve the flickability of your machine while providing the deep, aggressive exhaust note these large-displacement bikes deserve.

• Massive Power Increase: Delivers a staggering +20% HP and +8.2% torque over the restrictive stock muffler.
• Factory Quality Machined Joints: Ensures a precise, airtight fit for maximum durability and easy removal.
• PTF Insert System: Easy-to-use Precision Taper Fit allows for rapid spark arrestor or sound insert swaps.
• Increased Caliper Clearance: Asymmetrical design ensures no interference with rear braking components.
• USFS Spark Arrestor: Comes pre-installed for immediate, trail-legal performance on public lands.
• SKU: 265022S320

Moto-House MX Pro Tip:

Because the RS-12 is designed to maximize exhaust flow on the new 2024+ Austrian chassis, the exit path of the exhaust gases is directly in line with the factory rear turn signals. To avoid melting your plastics or blinkers, we strongly recommend installing a tail-tidy kit or low-profile LED blinkers before your first ride with this system installed.

Year	Make	Model
2024 - 2026	KTM	500 EXC-F / 350 EXC-F
2024 - 2026	Husqvarna	FE 501S / FE 350S
2025 - 2026	KTM	500 EXC-F / 350 EXC-F

FAQ Questions

Q) Do I need to relocate my turn signals for this exhaust?
A) Yes. The RS-12 outlet is positioned directly inline with the factory turn signals. Relocation is required to prevent heat damage to your blinker housings.

Q) Is this exhaust legal for trail use?
A) Yes, this system comes with a USFS-approved spark arrestor pre-installed, making it legal for Forest Service trails and off-road parks.

Q) How much power will I gain with just a slip-on?
A) For the 2024+ KTM 500 EXC-F, Yoshimura recorded a massive 20% increase in peak horsepower and an 8.2% increase in torque, making it one of the most effective upgrades available.

Moto-House MX – Choice of Champions – is located in Clermont/Montverde, FL. We are the best motocross shop in Central Florida with lightning-fast shipping.