YAMAHA 1P800 Header Expansion Chamber Silencer 5NX-11

( Manufacturer Part Number: 1P800 ), ( Part Type: Header Silencer ), ( Placement On Vehicle: Exhaust )

Review YAMAHA Header Expansion Chamber And Silencer Like New fits YZ250 2006

Yamaha YZ250 2006 5NX-11 Exhaust System: 2006 Yamaha YZ250 5NX-11 Expansion Chamber and Silencer

Experience unparalleled performance enhancement for your 2006 Yamaha YZ250 with the 5NX-11 Exhaust System Expansion Chamber and Silencer. This high-performance exhaust system is a direct fit for your Yamaha YZ250, engineered to maximize power, improve fuel efficiency, and reduce engine noise for an optimal riding experience.

The expansion chamber, known as the 5NX-11, is a masterpiece of engineering and design. Crafted from top-tier materials, it ensures durability and longevity while providing superior gas flow for increased performance. The chamber's unique design allows for efficient exhaust gas expulsion, reducing back pressure and providing a more responsive engine.

The system also includes a silencer, designed to meet the strictest noise regulations while still delivering an aggressive, distinctive sound. The silencer features a compact, lightweight design without compromising on performance, making it an excellent choice for both amateur and professional riders.

Installation is straightforward and hassle-free, with bolt-on compatibility that requires no modification to your existing exhaust system. The system comes with all necessary hardware for a seamless installation process.

Upgrade your Yamaha YZ250 with the 2006 Yamaha YZ250 5NX-11 Exhaust System Expansion Chamber and Silencer. Experience improved power, enhanced fuel efficiency, and a distinctive, aggressive sound, all while maintaining the durability and reliability you've come to expect from Yamaha. Ride with confidence and redefine your riding experience with this premium exhaust system.

Yamaha YZ250 5nx-11 Silencer (2006) Expansion Chamber Analysis

1. Improved Performance: The expansion chamber is designed to enhance the exhaust flow, which can potentially increase power and torque output. This may result in better acceleration and overall performance.

2. Sound Enhancement: The silencer also provides a unique sound that some riders prefer, adding a touch of personality to your motorcycle.

3. Quality: Yamaha is a well-respected brand in the motorcycle industry, and this product is likely to be of high quality, ensuring durability and reliability.

1. Compatibility: Ensure the expansion chamber and silencer are compatible with your specific Yamaha YZ250 model from 2006. Incorrect fitment could lead to issues with the motorcycle's operation.

2. Cost: Aftermarket parts like these can be more expensive than stock components. The price may not be suitable for everyone's budget.

3. Performance Variation: While the expansion chamber may improve performance, the effect can vary depending on the specific conditions, including the motorcycle's tuning and the rider's riding style.

The Yamaha 1P800 2006 YZ250 header expansion chamber 5nx-11 silencer can potentially offer improved performance and a unique sound for your motorcycle. However, it's crucial to verify compatibility with your specific model and consider the potential cost. If you're a performance-oriented rider with a suitable budget, this aftermarket part could be a worthwhile investment. For casual riders or those on a tight budget, it might be wiser to stick with the stock components.

Details:

Hi I have this full exhaust setup off a 2006 YZ250. Both the pipe and silencer are in good shape, no dents or gouges. Springs, o-rings, and seals are not included, only what is pictured. Please reach out with any questions.

part #: 1p800 prices

• $126.89-$129.99

specifications cyclemufflermo:

• for models: Yz250
• for makes: Yamaha
• for years: 2006
• mpn: 1p800
• part type: Header Silencer
• placement on vehicle: Exhaust

payments cyclemufflermo:

• other
• wallet: Apple-pay
• credit card: Diners-club

general cyclemufflermo:

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

offer cyclemufflermo:

• quantity: 1
• options: Ship-to-home
• sold: 0
• started: November 20, 2025
• best offers: True
• availability: In Stock

returns cyclemufflermo:

• policy: No Returns

seller cyclemufflermo:

• city: Loomis, California
• rating: 100.0%
• # reviews: 65

shipping cyclemufflermo:

• class: Standard
• transit: 5-12 Days
• carrier: FedEx
• service: FedEx Ground / FedEx Home Delivery
• type: Calculated
• cost: $22.35

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