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Yoshimura

Yoshimura RS-12 Exhaust System Kawasaki KX250 2025

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Motorcycle Muffler Repacking Explained and Made Simple by Yoshimura R&D

Yoshimura RS-12 Exhaust System Kawasaki KX250 2025

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$999^.⁰⁰

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Material: Stainless Steel/Carbon Fiber

Blemished/Refurbished

This item is available as a Blem/Refurb. These are items that cannot be sold as "New" merchandise and are limited to stock on hand. See the product details for a description of the product's condition.

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Yoshimura RS-12 Exhaust System Kawasaki KX250

Yoshimura introduces the RS-12 Signature Series full system exhaust, designed to enhance the performance of the latest Kawasaki KX250F. This new evolution of the motorcycle features an upgraded chassis and engine, and the RS-12 exhaust has been fine-tuned to mesh seamlessly with these advancements. Extensive development has revealed notable improvements, including an increase of up to 3.3% in horsepower at 11,000 rpm and up to 3.4% in torque at 10,600 rpm. The result is a significant boost in power delivery across the top end and improved throttle response throughout the lower and mid-range of the power spectrum, propelling the 2025 KX250F towards victory.

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

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This product is vehicle specific. Click here to select your vehicle to ensure fitment.

Kawasaki: KX250 2025, 2026

This item is also available for 59 other models:

Gas Gas: MC 250F 2021-2023; MC 250F 2024-2026; MC 250F Factory Edition 2023-2025; MC 350F 2022-2023; MC 350F 2024-2025; MC 450F 2024-2026; MC 450F Factory Edition 2023-2025; MC 450F Prado Edition 2025

Honda: CRF250R 2022-2024; CRF250R 2025-2026; CRF250RX 2022-2024; CRF250RX 2025-2026; CRF450R 2021-2024; CRF450R 50th Anniversary Edition 2023; CRF450R-S 2023-2024; CRF450R Works Edition 2021-2024; CRF450RX 2021-2024

Husqvarna: FC250 2019-2022; FC250 2023-2025; FC250 Rockstar Edition 2022-2025; FC350 2019-2022; FC350 2023-2025; FC450 2023-2025; FC450 Rockstar Edition 2022-2025

KTM: 250 SX-F 2019-2022; 250 SX-F 2023-2026; 250 SX-F Adamo Edition 2025; 250 SX-F Factory Edition 2021; 250 SX-F Factory Edition 2022-2025; 250 XC-F 2019-2022; 350 SX-F 2019-2022; 350 SX-F 2023-2026; 350 XC-F 2019-2022; 350 XC-F Kailub Russell 2021; 450 SX-F 2023-2026; 450 SX-F Factory Edition 2022-2025

Kawasaki: KX250 2021-2024; KX250X 2021-2024; KX450 2024-2026; KX450 2019-2023; KX450SR 2022-2026; KX450X 2024-2026; KX450X 2021-2023

Suzuki: DR-Z4S 2025-2026; DR-Z4SM 2025-2026

Triumph: TF250X 2024-2025; TF450E 2025; TF450RC Edition 2025

Yamaha: WR250F 2020-2023; YZ250F 2024-2026; YZ250F 2019-2023; YZ250F 70th Anniversary Edition 2026; YZ250F Monster Energy Race Edition 2024-2025; YZ250F Monster Energy Race Edition 2021-2023; YZ250FX 2020-2023; YZ450F 2020-2022; YZ450F 2023-2025; YZ450F Monster Energy Race Edition 2021-2022; YZ450F Monster Energy Race Edition 2023-2025

Product Style	Item #	Store SKU	Manufacturer Product #	Availability
Product Style Stainless Steel/Carbon Fiber	Item # 10474319	Store SKU	Manufacturer Product # 242950S520	Availability Out of Stock

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