Powercore 4 Hex Exhaust Silencer 24-25 Kawasaki KX 450 F X - FMF 042401

Engineered for serious off-road and motocross enthusiasts, the FMF Racing Powercore 4 HEX 042401 slip-on muffler delivers noticeable improvements in both torque and horsepower at a budget-friendly price. Drawing on features from elite racing exhausts, this robust system is crafted with a stainless steel midpipe and endcap combined with an aluminium body. It offers long-term reliability through advanced internal packing and incorporates Hi-Flo core technology for optimised exhaust flow, ensuring your bike performs at its peak.

Features

• Substantial increase in power and torque across the RPM range
• Durable, race-inspired stainless steel and aluminium construction
• Hi-Flo internal core technology for superior airflow
• Proprietary Space Age packing maximises longevity
• Removable screen-type spark arrestor included for versatility
• Compatible with optional quiet insert (sold separately)
• Notice: For closed course competition use only

Specifications

• Item ID: 042401
• Type: Slip-On
• Configuration: Single
• Material: Aluminium housing with stainless steel midpipe and endcap
• Finish: Grey anodised
• Spark Arrestor: Screen insert included
• Quiet Insert: Sold separately
• Carb Warning: No

Vehicle Fitment

Kawasaki

• KX450F (2024–2025)
• KX450X (2024–2025)