FMF Factory 4.1 RCT Aluminum Slip-On Exhaust with Carbon Cap for Kawasaki KX250F, Part 042374

Upgrade your Kawasaki KX250F with the FMF Factory 4.1 RCT Aluminum Slip-On Exhaust, manufacturer part number 042374 and vendor part number 79-40639. This tuned exhaust is designed for 2017, 2018, 2019, and 2020 Kawasaki KX250F models, delivering optimized performance while maintaining a controlled sound level. Its Factory Forward Engineering layout centralizes mass and helps reduce the likelihood of crash damage during demanding riding conditions.

The FMF Factory 4.1 RCT uses advanced Resonance Chamber Technology and a patented core shape to lower sound output without sacrificing maximum power delivery. The patented canister design increases internal volume for additional sound-absorbing material, while the chamber design refines exhaust pressure for application-specific performance. This aluminum version features an aluminum canister, a stainless steel mid-pipe, and a durable carbon fiber rear cap.

Installation is straightforward with the innovative rear end cap, which allows simple installation of tuning tip inserts or a spark arrestor. The exhaust includes a spark arrestor and wash plug for added convenience and off-road usability. Built specifically for the Kawasaki KX250F platform, the FMF Factory 4.1 RCT Slip-On Exhaust is a practical performance upgrade for riders seeking tuned exhaust flow, reduced sound, and durable construction.

Features:

• Resonance Chamber Technology: Incorporates FMF's latest chamber technology for tuned exhaust performance.
• Patented Core Shape: Helps lower sound levels while maintaining maximum power output.
• Patented Canister Shape: Increases internal volume for additional sound-absorbing material.
• Patented Chamber Design: Enhances and refines exhaust pressure for each application.
• Factory Forward Engineering: Centralizes mass and helps protect the exhaust from crash damage.
• Application-Specific Tuning: Uses optimized core specifications for the Kawasaki KX250F.
• Aluminum Construction: Includes an aluminum canister with a stainless steel mid-pipe.
• Carbon Fiber Rear Cap: Provides a lightweight, durable finish and supports simple insert installation.
• Included Accessories: Comes with a spark arrestor and wash plug.
• Fitment: Fits 2017, 2018, 2019, and 2020 Kawasaki KX250F models.