Yoshimura 262530S320 2019-2023 KTM/Husqvarna 250/350 RS-12 Full Exhaust — Boost Torque & Power

Yoshimura — Maximum Exhaust Flow and Weight Centralization, Get the Holeshot on Your Austrian Machine

Stop fighting a choked-out powerband and heavy stock canisters. The KTM 250 SX-F and Husqvarna FC 350 are precision instruments that require a high-velocity exhaust path to reach their full potential. The Yoshimura RS-12 Full System eliminates the restrictive backpressure found in stock pipes, delivering an immediate increase in torque and over-rev that allows you to carry gears longer between shifts and clear obstacles with confidence.

Engineered over 24 months of professional racing development, the RS-12 features an asymmetrical profile that maximizes muffler volume for superior sound management while providing massive clearance for the rear brake caliper and tire. Every connection point utilizes "Factory Quality" precision-machined joints, ensuring a perfect 360-degree seal that prevents power-robbing leaks and extends the life of your Husqvarna FC 250 or GasGas MC 350F exhaust system.

• Optimized Power Delivery: Specifically tuned to boost mid-to-top end performance for 250cc and 350cc engines.
• Precision Machined Joints: Factory Quality fitment that ensures a leak-proof seal and easier maintenance.
• Weight Centralization: Tapered muffler body design moves the mass forward for better handling in corners.
• Matte Carbon Fiber End Cap: Innovative inner-mount design increases durability and simplifies repacking.
• PTF Insert System: Patent-pending Precision Taper Fit makes installing spark arresters or sound inserts effortless.
• MPN: 262530S320

Moto-House MX Pro Tip:

When installing a full stainless system on your KTM or Husqvarna, always use a contact cleaner to remove any fingerprints from the header before the first start-up. Oils from your skin will "bake" into the metal, creating permanent brown spots. Cleaning the pipe first ensures a beautiful, even golden-straw patina as the stainless steel heat-cycles.

Year	Make	Model
2021-2023	GasGas	MC 250F / MC 350F
2023	GasGas	EX 250F / EX 350F
2019-2022	Husqvarna	FC 250 / FC 350
2019-2022	KTM	250 SX-F / 350 SX-F
2019-2020	KTM	250 XC-F / 350 XC-F

FAQ Questions

Q) Does this exhaust require an ECU re-map?
A) While the RS-12 is designed to run safely on the stock fuel map, we recommend a Vortex or GET ECU to fully unlock the horsepower gains provided by the increased flow on KTM and Husqvarna models.

Q) How much lighter is the Yoshimura RS-12 than the stock exhaust?
A) The RS-12 utilizes high-grade stainless steel and a lightweight aluminum canister to provide a significant weight reduction over the stock system, specifically improving the "flickability" of the bike.

Q) Can I run a spark arrester with this system?
A) Yes, the RS-12 features a Precision Taper Fit (PTF) insert ring, allowing you to quickly swap between a wide-open race setup and a forest-legal spark arrester (sold separately).

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