FMF Factory 4.1 Mini Exhaust KLX110 KLX110R | 042380

FMF Factory 4.1 Mini Exhaust System for Kawasaki KLX110 / KLX110R

The FMF Factory 4.1 Mini Exhaust System is a premium performance upgrade for Kawasaki KLX110, KLX110L, KLX110R, KLX110R L, and Suzuki DR-Z110 pit bike models. Built for mini moto riders who want improved performance, aggressive FMF styling, and a race-inspired exhaust note, this system is a popular choice for KLX110 pit bike builds and backyard motocross fun.

Product Details

• WPS Number: 79-42380
• Brand Number: 042380
• Product: FMF Factory 4.1 Mini Exhaust System
• Canister Construction: Aluminum
• Header Construction: Stainless steel
• Midpipe: Stainless steel
• End Cap: Stainless steel
• Designed for select Kawasaki KLX110 and Suzuki DR-Z110 mini bike applications

Key Features

• Factory 4.1 Mini performance exhaust system for play bikes and pit bikes
• Designed to improve performance on stock and modified mini bike engines
• Aluminum muffler body with stainless steel header construction
• Stainless steel end cap for durability and clean FMF styling
• Screen-style spark arrestor included
• Quiet insert sold separately
• Great upgrade for KLX110 pit bike builds, backyard riding, mini moto, and closed-course riding

Simplified Fitment Chart

Why Choose the FMF Factory 4.1 Mini?

The FMF Factory 4.1 Mini is built for riders who want more than a basic replacement exhaust. It gives the KLX110 platform a more aggressive look, improved exhaust flow, and the performance-focused feel riders expect from FMF. It is a great choice for pit bike builds, mini moto racing, and upgraded play bikes.

Product and fitment information are provided as a reference only. Always confirm compatibility with your motorcycle before purchasing or installing.