KTM 450SX-F FE 22-26/Husqvarna FC450 RE 22-26 RS-12 Stainless Full Exhaust, w/ Aluminum Muffler - 264630S320

KTM 450SX-F FE 22-26/Husqvarna FC450 RE 22-26 RS-12 Stainless Full Exhaust, w/ Aluminum Muffler

The Yoshimura RS-12 Signature Series full exhaust system is built for riders who want a more connected, controllable feel from their 450—without straying from a proven motocross race-bred design. Developed through dyno and rider testing, this stainless full system with an aluminum muffler introduces resonator technology in both the header and muffler to enhance power characteristics while managing sound. SKU: 264630S320.

Product Details

• SKU: 264630S320
• Brand: Yoshimura
• Category: Signature Series Exhaust System

Key Features

• RS-12 Signature Series stainless full system with aluminum muffler
• First Yoshimura production motocross exhaust to incorporate a resonator on the header and in the muffler
• Tuned header resonator designed to unlock bottom and midrange power and improve sound
• Asymmetrical muffler shape maximizes capacity and integrates a resonance chamber for sound management and usable power
• RS-12 profile provides added clearance for tire and brake caliper
• Precision machined joints for a secure seal with 360-degree contact to support fit and system life
• Works-look matte carbon fiber end cap; inner-cap mounted design improves durability and eases servicing
• Patent-pending Precision Taper Fit (PTF) insert ring for easier installation/removal of sound inserts and spark arresters
• Tapered muffler body inlet design allows the system to be pushed forward for improved weight centralization
• Sound level: Volume Insert
• Developed, designed, and made in the USA

Fitment & Notes

Fitment per Yoshimura: 2022.5 KTM SX-F Factory Edition and later 450SX-F; 2022.5 Husqvarna Rockstar Edition FC450 and later FC450 (model years 22–26 as listed). Spark arrestor sold separately. Sound insert/spark arrester options referenced by Yoshimura: INS-30-K (Volume Insert: Yes); SA-21-K (Spark Arrestor Included: No); SA-20-K (Spark Arrestor Included: No).