FMF RACING 879-6776 Exhaust Muffler Header

( Brand: Fmf Racing ), ( Manufacturer Part Number: 879-6776 ), ( Part Type: Exhaust Muffler Header ), ( Placement On Vehicle: Exhaust ), ( Color: Gold ), ( Country Of Origin: Japan )

Review FMF RACING Honda Gold Series Full Exhaust System Muffler Header fits CR250R 2003

The **FMF Racing 879-6776 Exhaust Muffler Header** is a meticulously engineered aftermarket upgrade designed specifically for the **2003 Honda CR250R**, delivering a striking blend of performance, durability, and aesthetic appeal. Crafted from high-quality **4130 chromoly steel**, this header and muffler assembly is built to withstand the rigors of off-road riding while enhancing the engine s breathing capacity for improved throttle response and power delivery. The **dual-chamber muffler** features a **slip-on design** with a **stainless steel inner liner**, ensuring longevity and resistance to corrosion, even in the harshest conditions. The **smooth, polished finish** on the header and the **matte black or polished chrome exterior** options allow riders to customize the look to match their preferred style, whether they favor a sleek, modern appearance or a rugged, high-performance aesthetic. This system is engineered to reduce backpressure, allowing exhaust gases to exit more efficiently, which translates to better engine efficiency and a more aggressive, sport-tuned exhaust note ideal for those seeking a balance between off-road capability and on-trail presence. Backed by FMF Racing s reputation for precision manufacturing and reliability, this header and muffler is a trusted choice for enthusiasts looking to elevate the performance and character of their 2003 Honda CR250R without compromising on build quality.

### **Pros and Cons of buying a FMF Racing 879-6776 2003 Honda CR250R Exhaust Muffler Header**

1. **Performance Gains** The FMF Racing header is designed to improve exhaust flow, reducing backpressure and increasing horsepower and torque. Many riders report noticeable power improvements, especially in the mid-to-high RPM range.

2. **Lightweight Construction** FMF Racing headers are typically made from high-quality stainless steel, which is lighter than stock headers. This reduces overall weight, improving handling and acceleration.

3. **Durability** FMF Racing components are known for their robust construction, often featuring welded joints and heat-treated materials that can withstand high temperatures and stress.

4. **Compatibility** This specific part is designed for the 2003 Honda CR250R, ensuring a proper fit without modifications. It replaces the stock exhaust system while maintaining OEM mounting points.

5. **Sound Improvement** While not as aggressive as some aftermarket exhausts, the FMF header provides a deeper, more resonant tone compared to the stock system, appealing to riders who want a sportier exhaust note.

6. **Aftermarket Support** FMF Racing is a well-regarded brand with a strong reputation in the motocross and dirt bike community. Their parts are widely available through dealers and online retailers.

7. **Ease of Installation** The header is designed for straightforward installation, often requiring only basic tools. Many riders complete the job in under an hour with minimal effort.

8. **Potential for Further Mods** If you plan to upgrade your exhaust system further (e.g., adding a downpipe or slip-on), the FMF header provides a solid foundation for those modifications.

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1. **Cost** The FMF Racing header is more expensive than the stock exhaust system. Depending on pricing, it may represent a significant investment, especially if you re on a tight budget.

2. **Legal Restrictions** In some regions, aftermarket exhaust systems may be restricted or require additional modifications (e.g., mufflers with baffles) to comply with local noise laws. Always check local regulations before purchasing.

3. **Maintenance Requirements** Stainless steel headers can develop carbon buildup over time, especially in high-RPM applications. Regular cleaning (e.g., with a carburetor cleaner or ultrasonic bath) may be necessary to maintain performance.

4. **Potential for Leaks** If not installed correctly, gaskets or welds can fail, leading to exhaust leaks. This requires careful attention during installation to prevent issues.

5. **Limited Power Increase (Compared to Full Exhausts)** While the header improves flow, it may not provide the same power gains as a full aftermarket exhaust system (e.g., one with a slip-on and muffler). If you re chasing maximum performance, you may need to pair it with other mods.

6. **Weight Transfer Considerations** While lighter than stock, some riders note that the header s design may slightly alter the bike s weight distribution, which could affect handling in extreme conditions.

7. **Compatibility with Other Mods** If you have other exhaust-related mods (e.g., a different carburetor or fuel system), the FMF header may require tuning adjustments to optimize performance.

8. **Resale Value Impact** Aftermarket exhaust headers can reduce a bike s resale value, especially if the market favors stock or less aggressive modifications.

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The **FMF Racing 879-6776 2003 Honda CR250R Exhaust Muffler Header** is a solid choice for riders looking to improve exhaust flow, power, and sound without a full exhaust swap. It strikes a balance between performance gains and practicality, offering noticeable benefits with relatively straightforward installation. However, it is not a "set-and-forget" upgrade it requires proper installation, occasional maintenance, and consideration of legal and budgetary constraints.

If you re primarily focused on **power and handling improvements** and can afford the cost, this header is a worthwhile investment. However, if you re on a tight budget or prefer minimal modifications, the stock exhaust may suffice. For those seeking **maximum performance**, pairing this header with a slip-on and muffler (e.g., from FMF Racing or another reputable brand) would yield even better results.

- **Buy it if:** You want a **direct, cost-effective power upgrade**, prioritize durability, and are willing to invest in a quality aftermarket part. It s ideal for riders who already have or plan to add other performance mods (e.g., carburetor tuning, suspension upgrades).

- **Skip it if:** You re concerned about **legal restrictions**, budget constraints, or prefer to keep the bike stock for resale. Alternatively, consider a **slip-on muffler** or **full exhaust system** if you want more aggressive power gains.

- **Pair it with:** A **carburetor tune** (e.g., adjusting the jet size) or a **downpipe** to maximize airflow benefits. If you plan to run it at high RPMs, consider a **high-flow air filter** to complement the exhaust upgrade.

Ultimately, this header is a **smart intermediate step** for riders looking to enhance their CR250R s performance without a full exhaust overhaul.

Details:

Philadelphia, PA. 2003 CR-250R. FMF full exhaust.

part #: 8796776 prices

• $135.00-$283.78

specifications cyclemufflermo:

• for models: Cr250r
• for makes: Honda
• for years: 2003
• brand: Fmf Racing
• mpn: 879-6776
• part type: Exhaust Muffler Header
• placement on vehicle: Exhaust
• color: Gold
• country of origin: Japan

offer cyclemufflermo:

• sold: 0
• options: Ship-to-home
• availability: In Stock
• quantity: 1
• started: March 20, 2026

general cyclemufflermo:

• condition: Used
• Motorcycle Scooter Parts Accessories > Exhaust Emission Systems > Silencers, Mufflers Baffles

seller cyclemufflermo:

• rating: 100.0%
• # reviews: 8724
• city: Marcus Hook, Pennsylvania

returns cyclemufflermo:

• policy: No Returns

shipping cyclemufflermo:

• cost: $89.53
• class: Standard
• carrier: UPS
• transit: 4-7 Days
• type: Calculated
• service: UPS Ground

payments cyclemufflermo:

• wallet: Google-pay
• other
• credit card: Mastercard

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