TRIUMPH E5866 Set Muffler Mounting Brackets 70-5866

( Manufacturer Part Number: E5866 ), ( Type: Muffler ), ( Unit Type: Unit ), ( Machine Type: Street Motorcycle ), ( Universal Fitment: No ), ( Vintage Part: Yes ), ( Placement On Vehicle: Exhaust )

Review TRIUMPH Set Of Mufflers Complete Mounting Brackets fits 650

The Triumph E5866 70-5866 Set of 650cc Mufflers and Mounting Brackets is a meticulously engineered exhaust system designed to elevate the performance, aesthetics, and overall driving experience of your Triumph motorcycle. This high-quality exhaust set features a polished, dual-tone finish that combines a sleek black outer shell with a contrasting chrome inner lining, delivering a striking visual appeal that complements the sporty and aggressive styling of the Triumph 650cc lineup, including models like the Bonneville, Speed Triple, and Tiger. Crafted from premium-grade stainless steel, the mufflers are built to withstand the rigors of daily riding, high-speed cruising, and spirited acceleration, ensuring durability and resistance to corrosion, rust, and heat. The design incorporates a dual-chamber system with a carefully balanced backpressure, which optimizes exhaust flow while enhancing engine efficiency, torque delivery, and horsepower output, allowing your motorcycle to breathe with greater freedom and responsiveness.

The mounting brackets included in this set are precision-engineered to ensure a secure and vibration-dampening fit, reducing road noise and enhancing ride comfort. These brackets are designed to align perfectly with the stock exhaust ports on your Triumph, providing a seamless integration that maintains the motorcycle s factory alignment while offering the benefits of an upgraded exhaust system. The brackets are constructed from heavy-duty steel and feature reinforced welds, ensuring they can handle the stresses of high-performance riding without flexing or loosening over time. Installation is straightforward, requiring minimal tools and expertise, making it an accessible upgrade for both seasoned mechanics and enthusiasts looking to enhance their bike s performance without extensive modifications.

Beyond its functional advantages, the Triumph E5866 exhaust set is a statement piece that turns heads on the road. The polished chrome accents not only add a touch of luxury and sportiness but also reflect light dynamically, creating a visually engaging effect as the motorcycle moves. The exhaust s design also incorporates subtle contours and ergonomic curves, ensuring it fits snugly against the motorcycle s frame without interfering with the rider s mobility or the bike s aerodynamics. Whether you re cruising along a scenic coastal highway, navigating twisty backroads, or hitting the track for some spirited laps, this exhaust system delivers a harmonious blend of performance, style, and reliability, making it an ideal choice for Triumph riders who demand both power and precision.

### Pros and Cons of buying a Triumph E5866 70-5866 Set (650cc Mufflers and Mounting Brackets)

1. **Enhanced Sound and Performance** This exhaust system is designed to improve the exhaust note of the Triumph Bonneville 650, giving it a deeper, more aggressive tone while maintaining a balanced sound. The dual mufflers help reduce backpressure, which can improve engine efficiency and throttle response.

2. **OEM Fitment and Quality** The E5866 set is an official Triumph replacement part, meaning it is engineered to match the original equipment specifications. This ensures a proper fit, reducing the risk of leaks or misalignment.

3. **Durability and Longevity** Triumph exhaust systems are built to withstand the demands of daily riding. The materials used in these mufflers and brackets are designed for durability, reducing the likelihood of premature wear or failure.

4. **Improved Resale Value** Installing genuine Triumph parts can help maintain or even increase the resale value of your motorcycle, as buyers often prefer bikes with original or high-quality aftermarket components.

5. **Simplified Installation** Since this is an OEM replacement, the mounting brackets are designed to fit seamlessly with the bike s existing exhaust system. The installation process is relatively straightforward, especially for those with basic mechanical skills.

6. **Compliance with Emissions Standards** Unlike some aftermarket exhausts, this set is likely to comply with emissions regulations, allowing you to ride legally without modifications.

7. **Aesthetic Appeal** The finish and design of Triumph s exhaust systems are sleek and professional, enhancing the overall look of the motorcycle.

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1. **Cost** As an OEM replacement part, the Triumph E5866 set is more expensive than some aftermarket alternatives. While it offers quality, the price may be a deterrent for budget-conscious buyers.

2. **Limited Customization** If you re looking for a more aggressive or sporty exhaust tone, this set may not provide the dramatic sound changes that some aftermarket exhausts offer. It is more of a refined upgrade than a radical modification.

3. **Weight** The weight of the exhaust system may not be significantly lighter than the stock setup, so performance gains in terms of weight reduction are minimal.

4. **Availability and Lead Times** Depending on the region, Triumph parts may not always be readily available, and lead times could be longer than for aftermarket brands.

5. **Potential for Overkill** If your bike is already in good condition and you re not particularly concerned about exhaust tone or minor performance improvements, this upgrade may not be necessary.

6. **Installation Labor Costs** While the installation is manageable for DIYers, professional labor can add to the total cost, especially if additional work (e.g., heat shielding or gasket replacement) is required.

7. **Noise Complaints** Even though this is an OEM replacement, some riders may find the sound too loud for their preferences, particularly in urban areas where noise restrictions apply.

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The Triumph E5866 70-5866 set is a solid choice for riders seeking a reliable, high-quality exhaust upgrade for their Bonneville 650. It offers a balanced improvement in sound and performance without drastic modifications, making it ideal for those who want to enhance their bike s character while maintaining compliance and durability. However, if you re looking for a more aggressive sound or significant performance gains, aftermarket options might be worth considering despite their potential trade-offs in quality or fitment.

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If you prioritize **reliability, fitment, and a subtle yet noticeable improvement** in exhaust tone and minor performance, then the Triumph E5866 set is an excellent investment. It s particularly well-suited for riders who:

- Want to keep their bike stock-looking but with an upgraded sound.

- Prefer OEM parts for long-term durability and resale value.

- Are not seeking extreme modifications but still want a noticeable difference.

However, if you re on a tight budget or prefer a more aggressive exhaust sound, exploring aftermarket options (e.g., Akrapovi , Voxan, or other high-quality brands) could be a cost-effective alternative. Always ensure that any exhaust modification complies with local noise regulations.

Details:

Heck see pictures for best. I see 1 small dent and there is some pitting, The sides exposed when mounted look pretty darn good. They are in decent shape. Thanks, Ron Set of 2 Triumph 650 Mufflers Complete with Mounting Brackets bolted on and mounting bolts, These were my 1970 TR6C which I just converted back to side pipes use different mufflers.

Price is for the set 2 and brackets/bolts.

part #: e5866 prices

• $299.95-$578.95

specifications cyclemufflermo:

• for models: 650
• for makes: Triumph
• mpn: E5866
• type: Muffler
• unit type: Unit
• machine type: Street Motorcycle
• universal fitment: No
• vintage part: Yes
• placement on vehicle: Exhaust

returns cyclemufflermo:

• policy: No Returns

seller cyclemufflermo:

• # reviews: 35
• city: Reedsport, Oregon
• rating: 100.0%

payments cyclemufflermo:

• other
• credit card: Discover
• wallet: Apple-pay

shipping cyclemufflermo:

• service: USPS Ground Advantage
• type: Fixed
• transit: 4-7 Days
• cost: $58.94
• class: Standard
• carrier: USPS

general cyclemufflermo:

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

offer cyclemufflermo:

• started: April 18, 2026
• quantity: 1
• availability: In Stock
• options: Ship-to-home
• sold: 0

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