CRF450R/RX 25-26 RS-12 Stainless Full Exhaust, w/ Stainless Muffler - 225860S520

CRF450R/RX 25-26 RS-12 Stainless Full Exhaust, w/ Stainless Muffler

Built for the updated 2025 Honda CRF450R/RX platform, the Yoshimura RS-12 Signature Series stainless full exhaust system is engineered to deliver a refined power curve and a factory-level fit. Developed alongside Team Honda HRC, this system pairs a stainless header with a stainless muffler and includes a sound insert to balance strong performance with a clean, rider-friendly exhaust note.

Product Details

• SKU: 225860S520
• Brand: Yoshimura
• Category: Signature Series Exhaust System

Key Features

• RS-12 Signature Series full system for 2025–2026 CRF450R/RX
• Stainless full exhaust with stainless muffler
• Hydroformed muffler design to maximize space, reduce material usage, and improve durability with a deep-draw one-piece resonator
• Hydroformed header primary with an oval-to-round internal transition for precise port matching and improved repeatability
• Carbon Faced Machined Joint designed to eliminate the need for anti-seize and reduce wear by lowering friction at the joint
• Header resonator developed in cooperation with Team Honda HRC to help maximize power across the spectrum
• Cast manifold for increased strength, durability, and easier installation/removal
• Includes INS-32-K sound insert installed (Sound Level: Volume Insert)
• Designed, developed, and made in the USA with support from Team Honda HRC (USA & Europe)

Fitment & Notes

Fitment: 2025–2026 Honda CRF450R/RX (as stated in product title and manufacturer details). Includes INS-32-K sound insert installed. Spark arrester options may vary by insert selection.