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Yoshimura RS-12 Exhaust System Kawasaki KX250

Enhance your Kawasaki KX250F with Yoshimura's RS-12 Signature Series full system exhaust, designed specifically for the latest model. This state-of-the-art system adds up to 3.3% more horsepower at 11,000 rpm and 3.4% more torque at 10,600 rpm, giving the 2025 KX250F an unmistakable edge on the track. Crafted to complement the new bike's chassis and engine, the RS-12 maximizes performance throughout the power spectrum, offering improved top-end power and more engaging performance where it counts.

Features:

  • Our new Carbon Faced Machined Joint eliminates the need for anti-seize by impregnating the surface of the stainless steel joint with carbon atoms, reducing friction and wear over the joint's lifespan
  • Our header resonator isn't just there for looks, it allows us to maximize power across the spectrum, while enhancing rider connectivity
  • Our new RS-12 for the 2025 KX250F comes with an INS-31-K sound insert installed for an ear-pleasing exhaust note and optimal power, with an SA-21-K spark arrestor available separately for those venturing into the woods
  • Proudly developed and made in the USA
Made in the USA
Product Style J&P Cycles Item # Catalog Number Store Sku MFR. Product # Availability
Product Style Stainless Steel/Carbon Fiber J&P Cycles Item #10474319 Catalog Number10474319 Store Sku MFR. Product #242950S520 AvailabilityIn Stock: Ships within 24 hours

This product DOES NOT FIT your 2005 Yamaha FZ6 FZS600

This Product Fits
Kawasaki
KX250 2025, 2026
This item is also available for 10 different vehicles. View All Models
Honda
CRF250R 2025-2026
CRF250RX 2025-2026
Kawasaki
KX450 2024-2026
KX450 50th Anniversary Edition 2024
KX450X 2024-2026
Suzuki
DR-Z4S 2025
DR-Z4SM 2025
Yamaha
YZ250F 2024-2026
YZ250F 70th Anniversary Edition 2026
YZ250F Monster Energy Race Edition 2024-2025
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