FMF Mini Powercore 4 Exhaust System for Yamaha TT-R125 / TTR125 (044136)

Transform your Yamaha mini bike with a true bolt-on performance upgrade: the FMF Mini Powercore 4 is a complete exhaust system that replaces the stock setup to deliver better exhaust flow, crisper throttle response, and a noticeable bump in power across the midrange. Model 044136 is the Mini Powercore 4 configured for Yamaha TT-R125/TTR125 from 2000 through 2026.

Construction uses a Hi-Flo stainless steel core and end caps with a formed end cap, a durable stainless steel header, and an aircraft-grade aluminum canister. This combination yields a lighter assembly than stock, helping the bike feel more responsive and agile on the trail or track.

• Fits: Yamaha TT-R125/TTR125 (2000–2026) — a seamless fit on Yamaha mini models
• Configuration: Mini Powercore 4 with included stainless header (SS header)
• Materials: Hi-Flo stainless core; formed end caps; aircraft-grade aluminum canister; stainless header
• Performance: improved exhaust flow, crisper throttle response, and more responsive mid-range
• Weight and durability: lighter than stock while maintaining durability under demanding riding conditions
• Installation: straightforward bolt-on process

Designed for riders who want a reliable, purpose-built upgrade for racing or recreational riding, the 044136 Powercore 4 delivers a compact, lightweight enhancement that preserves Yamaha’s mini-bike footprint while unlocking extra performance.

The Mini Powercore 4 is the best bang for your buck performance bolt on for your mini. Offered as a standard Mini Powercore 4, Closed Course Big Bore System or as a Spark Arrestor Version, the Mini Powercore 4 features a Hi-Flo stainless steel core and formed end caps, an aircraft grade aluminum canister and a durable stainless steel header. Its pounds lighter than stock and you will swear the motor has been bored and stroked with the first twist of the throttle.

Hi-Flo Core and End Cap

Pounds lighter than stock

The FMF Racing Mini Moto Yamaha exhaust system, part number 044136, is designed to enhance the performance of your Yamaha mini motorcycle. Crafted with precision, this exhaust system offers improved exhaust flow, which can lead to increased horsepower and better throttle response. Its durable construction ensures longevity and reliable operation under various riding conditions. Whether you're customizing your mini bike for racing or recreational riding, this FMF Racing component is built to meet high-performance standards.
Installation is straightforward, and the system fits seamlessly with Yamaha mini models, providing a significant upgrade over stock exhausts. The compact design maintains the lightweight nature of your mini bike while delivering notable performance gains. This product is an ideal choice for enthusiasts seeking to optimize their mini motorcycle's power output and overall efficiency.
Constructed from high-quality materials, the FMF Racing Mini Moto Yamaha exhaust system withstands high temperatures and harsh environments, ensuring consistent performance over time. Its design promotes better exhaust scavenging, which can contribute to improved engine efficiency. Suitable for riders who demand durability and enhanced performance from their mini bikes, this exhaust system is a reliable upgrade that complements your Yamaha mini motorcycle perfectly.

Features:

• Enhanced exhaust flow for increased horsepower

• Durable construction for long-lasting performance

• Optimized for Yamaha mini motorcycle models

• Lightweight design maintains bike agility

• Easy installation with a seamless fit

• Improves throttle response and engine efficiency

• High-quality materials withstand high temperatures