FMF 4.1 RCT Titanium Exhaust System - Kawasaki KX 450F / X (2024-2025)

Overview

Push your Kawasaki KX 450F or X (2024–2025) to peak performance with FMF’s Factory 4.1 RCT Titanium Exhaust System. Featuring a blue anodized titanium muffler, Megabomb header, and carbon fiber end cap, this full system is built for maximum power gains, weight savings, and razor-sharp handling. It’s the same factory tech trusted by pro teams—ready to bolt onto your ride.

Key Features

• Complete Race System: Includes FMF’s 4.1 RCT slip-on and Megabomb titanium header.
• Resonance Chamber Technology™: Internal and external chambers boost power and reduce sound.
• Massive Power Gains: Broad RPM improvements with stronger low-end and over-rev performance.
• Weight Savings: Aerospace-grade titanium construction cuts serious weight compared to stock.
• Crash-Resistant Design: Shorter muffler reduces damage and improves mass centralization.
• Rapid Tuning System (RTS): Easily adjust with included inserts for noise and power tuning.
• Made in the USA: 100% built in FMF’s Southern California facility.

Specifications

• Fitment: Kawasaki KX 450F / X (2024–2025)
• Item ID: 042406
• System Type: Full Exhaust (Header + Slip-On)
• Header: Megabomb Titanium
• Muffler: Blue Anodized Titanium
• End Cap: Carbon Fiber
• Midpipe: Titanium
• Spark Arrestor: Screen insert included
• Quiet Insert: 94 dB insert included
• Use: Closed Course Only

If you want podium-ready power with lightweight durability, the FMF 4.1 RCT full system is your KX’s ultimate upgrade.