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Product image 1KTM 450SX-F FE 22-24/Husqvarna FC450 RE 22-24 RS-12 Stainless Full Exhaust, w/ Aluminum Muffler
Product image 2KTM 450SX-F FE 22-24/Husqvarna FC450 RE 22-24 RS-12 Stainless Full Exhaust, w/ Aluminum Muffler
Product image 3KTM 450SX-F FE 22-24/Husqvarna FC450 RE 22-24 RS-12 Stainless Full Exhaust, w/ Aluminum Muffler
Product image 4KTM 450SX-F FE 22-24/Husqvarna FC450 RE 22-24 RS-12 Stainless Full Exhaust, w/ Aluminum Muffler
Product image 5KTM 450SX-F FE 22-24/Husqvarna FC450 RE 22-24 RS-12 Stainless Full Exhaust, w/ Aluminum Muffler
Product image 6KTM 450SX-F FE 22-24/Husqvarna FC450 RE 22-24 RS-12 Stainless Full Exhaust, w/ Aluminum Muffler
Product image 7KTM 450SX-F FE 22-24/Husqvarna FC450 RE 22-24 RS-12 Stainless Full Exhaust, w/ Aluminum Muffler
Product image 8KTM 450SX-F FE 22-24/Husqvarna FC450 RE 22-24 RS-12 Stainless Full Exhaust, w/ Aluminum Muffler
Product image 9KTM 450SX-F FE 22-24/Husqvarna FC450 RE 22-24 RS-12 Stainless Full Exhaust, w/ Aluminum Muffler
Product image 10KTM 450SX-F FE 22-24/Husqvarna FC450 RE 22-24 RS-12 Stainless Full Exhaust, w/ Aluminum Muffler
Product image 11KTM 450SX-F FE 22-24/Husqvarna FC450 RE 22-24 RS-12 Stainless Full Exhaust, w/ Aluminum Muffler
Product image 12KTM 450SX-F FE 22-24/Husqvarna FC450 RE 22-24 RS-12 Stainless Full Exhaust, w/ Aluminum Muffler

*Product may vary by application

KTM 450SX-F FE 22-24/Husqvarna FC450 RE 22-24 RS-12 Stainless Full Exhaust, w/ Aluminum Muffler

SKU: 264630S320

Sound Insert/Spark Arrester Options


Regular price $1,099.00

MADE IN USA

Signature Series Exhaust System


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Emissions Compliance Declaration: QUALIFIED MANUFACTURER DECLARED "REPLACEMENT PART"


WARNING: Cancer and Reproductive harm - www.p65warnings.ca.gov


 

Yoshimura RS12 Exhaust for 2023 KTM 450 SX-F | Track Tested

 

Introducing the newest RS-12 full system from Yoshimura R&D of America for the 2022.5 KTM SX-F Factory Edition/2023 SX-F 450 and 2022.5 Husqvarna Rockstar Edition FC450/2023 FC450. We got to work as soon as we could developing a system that would not only perform better than stock but one that would make the new 450's more controllable and more connected. Days of dyno and rider testing put our new RS-12 Signature Series exactly where we wanted it. Packing lots of punch for these two 450cc European machines.

This new system is the first Yoshimura production motocross exhaust to incorporate a resonator on the header and in the muffler. This new header resonator unlocks bottom and midrange power to not only make the new Austrian bikes more powerful, but provides more rider connectivity.

  • Aggressive intelligently designed, the RS-12 asymmetrical shaped muffler allows maximize capacity and incorporates a resonance chamber for managing sound and increasing usable power. RS-12's unique profile also provides more clearance for tire and brake caliper.
  • Tuned header resonator for enhanced power characteristics and improved sound
  • Just like the works systems our Factory Racers use, RS-12 systems utilize 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
  • Works-look matte carbon fiber end cap with industry leading design and innovation end cap detailing as expected from Yoshimura
  • Carbon end cap covers inner cap mounted design improves durability, and eases servicing as compared to other sandwich mounting designs most commonly found in the industry
  • New patent pending Precision Taper Fit (PTF) insert ring makes it easy to install and remove sound inserts and spark arresters
  • Tapered muffler body inlet design of RS-12 enables the system to be pushed forward thus helping with weight centralization without sacrificing performance

Spark arrestor sold separately.

The RS-12 proudly developed, designed, and made in the USA.

Sound Insert/Spark Arrester Options                 
​​
Sound Level
Volume Insert Spark Arrestor Included
INS-30-K
Yes

SA-21-K No


SA-20-K No 

  

. . . . .

This product was designed to fit on a standard equipped motorcycle, as delivered from the factory. OE and aftermarket accessories not found on a bike as delivered from the factory may not be compatible with this product.

Attention international customers: This product was designed and tested to be compatible with vehicles in the U.S. marketplace only. Compatibility, including fitment and performance, may vary by marketplace.

Signature Series Exhaust System

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Introducing Signature Series by Yoshimura - an offering of exhaust systems that a dealer can install with confidence. Our Signature Series lineup is the answer for today's dealer who is faced with a challenging marketplace. The applications for the Signature Series line cover the entire powersports spectrum, including many of our off-road applications. Every one of our Championship Winning Motocross exhaust systems and nearly all of our ATV/Side-by-Side applications are members of the Signature Series Family. All Signature Series components are tested, documented, and marked as required by federal and state regulations.

Vehicle Fitment

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  • Husqvarna FC450 2023
  • Husqvarna FC450 2024
  • Husqvarna FC450 Factory Edition 2022
  • KTM 450SX F 2023
  • KTM 450SX F 2024
  • KTM 450SX F FACTORY EDITION 2022


  • Customer Reviews

    Based on 2 reviews
    100%
    (2)
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    0%
    (0)
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    B
    Brytan
    Love the pipe looks awesome

    The pipe looks awesome super light. It was super easy to put on. The pipe doesn’t make the bike sound to deferent. The only down side was the little rubber piece for the insert fell into the tip of the exhaust but a little pit of work with a pick I got it right out.

    R
    Randy
    A++

    Looks and sounds great, ships super fast too!

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    Race series product restriction and affirmation

    Warning:

    The RACE SERIES product you are purchasing removes, renders inoperative, or bypasses required elements of the emission control systems of EPA, certified motorcycles of motorcyle engines and may only be installed on motorcycles that are restricted to closed course competition. Installation of this product on a motorcyle that is ridden on a public street, highway, or public lands violates the tampering and defeat device provisions of the Clean Air Act & 203(a)(3)(A) and/or & 203(a)(3)(B) and may subject you to a civil penalty of up to $37,000.

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    Race Information

    Rider/Purchaser Information

    Affirmation

    By clicking below, I affirm:
    1. that i have read the above warning;
    2. that any information I have entered is accurate; and
    3. that any motorcycle on which I install the RACE SERIES product will be restricted to closed course competition and will not be ridden on any public street, highway or public lands.