FMF 021039 Sst Expansion Chamber Header Pipe Exhaust Muffler

( Brand: Fmf ), ( Manufacturer Part Number: 021039 ), ( Part Type: Pipe Header Exhaust Muffler ), ( Oe/oem Part Number: 18300-ksr-j01 )

Review FMF Sst Expansion Chamber Header Pipe Exhaust Muffler fits CR125R CR125 2004

FMF Powercore 021039 Exhaust System for CR125R/CR125SST - Performance Enhancement and Sound Optimization

The FMF 021039 2004 04 CR125R CR125 SST Expansion Chamber Header Pipe Exhaust Muffler is a high-performance aftermarket exhaust system designed specifically for the CR125R and CR125SST dirt bikes of model year 2004. This exhaust system, a product of the esteemed FMF Racing brand, is renowned for its ability to enhance power delivery, improve throttle response, and optimize the overall riding experience.

The FMF Powercore 021039 is an expansion chamber header pipe exhaust muffler, a design that offers a superior balance between power and sound. The expansion chamber design allows for efficient exhaust scavenging, reducing backpressure and increasing engine performance. The header pipe, constructed from high-quality stainless steel, ensures durability and resistance to corrosion, while the muffler section provides an optimized sound profile that is both aggressive and compliant with noise regulations.

The Powercore 021039 also features FMF's proprietary Powercore silencer core, known for its exceptional effectiveness in reducing exhaust noise while maintaining performance. The core's unique design allows for a steady, controlled exhaust flow, which contributes to the system's overall power gains and throttle response.

Installation of the FMF 021039 exhaust system is straightforward, with clear, detailed instructions provided. The system is designed to fit seamlessly with the CR125R and CR125SST, ensuring a perfect fit and a factory-like finish.

In summary, the FMF 021039 2004 04 CR125R CR125 SST Expansion Chamber Header Pipe Exhaust Muffler is an excellent choice for riders seeking to improve their bike's performance, optimize its sound, and enhance their overall riding experience. With its durable construction, efficient design, and proven performance gains, this exhaust system is a worthy investment for any serious dirt bike enthusiast.

Product: FMF 021039 2004-04 CR125R/CR125SST Expansion Chamber Header Pipe Exhaust Muffler

1. Improved Power Delivery: This exhaust system is designed to provide a more efficient power delivery, giving the motorcycle a better performance and acceleration.

2. Enhanced Sound: The FMF exhaust system is known for its unique and powerful sound, which can enhance the overall riding experience.

3. Durable Construction: The exhaust system is made with high-quality materials that ensure durability and resistance to heat and wear.

4. Weight Reduction: Compared to stock exhaust systems, this FMF exhaust system is lighter, which can improve the bike's handling and agility.

1. High Cost: The FMF exhaust system is more expensive than a stock exhaust system, which may be a deterrent for some buyers.

2. Requires Professional Installation: Proper installation of this exhaust system requires professional skills and tools, adding to the overall cost.

3. Loudness: The exhaust system may be too loud for some riders, especially in residential areas.

4. Potential Impact on Emissions: Aftermarket exhaust systems like this one may not meet emissions standards, which could potentially lead to issues in certain regions.

The FMF 021039 2004-04 CR125R/CR125SST Expansion Chamber Header Pipe Exhaust Muffler offers significant performance improvements and a unique sound. However, its high cost, the need for professional installation, potential loudness, and potential emissions issues are important factors to consider. If you prioritize performance and sound, and are willing to invest in a high-quality aftermarket exhaust system, this product could be a good choice. If cost or emissions concerns are a priority, you may want to consider a different option.

Details:

Please look at all the images provided as they are of exact product and indicate condition best. They are free and may or not need to be replaced. 2004 HONDA CR125R, condition: FMF SST Expansion Chamber. The pictures provided are of exact products and contain as much detail possible.

Shipping: Quick Dispatch: Ships promptly post-purchase. Buyer pays for return shipping. No other cracks, breaks, or repairs. All used products contain scuffs and scratches from normal use.

Part Number s: 021039, Product Fitment: Make: model: Year: Notes: HondaCR125R 2004. These include light bulbs, bearings, seals, and gaskets. Contains dents.

part #: 021039 price

• $129.99

specifications izmotorcyclepipe:

• for models: Cr125r, Cr125
• for years: 2004
• brand: Fmf
• mpn: 021039
• part type: Pipe Header Exhaust Muffler
• oe/oem part number: 18300-ksr-j01

seller izmotorcyclepipe:

• city: Fordland, Missouri
• rating: 99.5%
• # reviews: 3454

shipping izmotorcyclepipe:

• cost: $0.00
• class: Standard
• service: UPS Ground
• carrier: UPS
• type: Fixed
• transit: 4-7 Days

payments izmotorcyclepipe:

• credit card: Discover
• other
• wallet: Paypal

offer izmotorcyclepipe:

• availability: In Stock
• options: Ship-to-home
• quantity: 1
• started: December 6, 2025
• sold: 0

general izmotorcyclepipe:

• Motorcycle Scooter Parts Accessories > Exhaust Emission Systems > Exhaust Pipes Tips
• condition: Used

returns izmotorcyclepipe:

• policy: Returns Accepted
• time: 30 Days
• paid by: Buyer

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