REBUFFINI 687736 Meteor Adapter Cam Kit Air Filter

( Brand: Rebuffini ), ( Manufacturer Part Number: 687736 ), ( Part Type: Adapter Cam Filter ), ( Country Of Origin: United States )

Review REBUFFINI Meteor Air Filter Adapter Hardware Kitsharley Cam fits TWIN

The **Rebuffini 687736 Meteor Air Filter Adapter Kit for Harley-Davidson Twin Cam engines** is a meticulously engineered aftermarket solution designed to enhance the performance, efficiency, and longevity of your motorcycle s intake system while maintaining a sleek, factory-inspired aesthetic. Specifically crafted for Harley-Davidson models equipped with the Twin Cam engine architecture, this kit replaces the stock air filter assembly with a high-performance, high-flow **Meteor air filter**, a premium component renowned for its superior filtration and airflow characteristics. The adapter kit ensures a seamless integration between the stock intake manifold and the Meteor filter, eliminating the need for costly modifications or custom fabrication while preserving the original engine bay layout. Constructed from durable, corrosion-resistant materials, the adapter features precision-machined fittings and a robust mounting bracket that securely fastens to the motorcycle s frame, providing a tight seal to prevent air leaks and maximize efficiency. The kit includes all necessary hardware, including gaskets, clamps, and mounting hardware, ensuring a straightforward installation process that even intermediate mechanics can tackle with confidence. Beyond its performance benefits, the Meteor air filter adapter kit offers a subtle yet noticeable upgrade in the motorcycle s underseat area, replacing the bulky, restrictive stock filter with a more compact, aerodynamic design that enhances both functionality and visual appeal. With its ability to improve throttle response, reduce backpressure, and extend the life of internal engine components by filtering out contaminants more effectively, this kit is an ideal choice for riders seeking a balance between performance gains and practicality. Whether you re preparing your Harley for track days, long-distance cruising, or simply aiming to restore its factory-like performance, the Rebuffini 687736 Meteor Air Filter Adapter Kit delivers a reliable, high-quality solution that stands out in the aftermarket community for its precision engineering and proven results.

The **Rebuffini 687736 Meteor Air Filter Adapter Kit** for Harley-Davidson Twin Cam engines is designed to improve airflow and performance by replacing the stock air filter with a high-flow aftermarket solution. Below is a detailed breakdown of its pros and cons, followed by a conclusion and recommendation.

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### **Pros**

1. **Enhanced Airflow and Performance**

The kit replaces the restrictive stock air filter with a high-flow design, allowing more air into the engine. This can lead to improved throttle response, better horsepower, and smoother power delivery, especially in high-RPM scenarios. Many riders report a noticeable difference in acceleration and overall engine feel.

2. **Easier Installation and Maintenance**

The kit is designed to be a straightforward drop-in replacement. It comes with all necessary components, including the filter housing adapter, gasket, and sometimes a new air filter (depending on the model). Unlike some aftermarket filters that require extensive modifications, this kit is engineered to fit directly over the stock filter housing, reducing labor time.

3. **Compatibility with Stock and Aftermarket Filters**

The adapter is versatile and can be used with a variety of high-performance air filters, such as K&N, Airaid, or other high-flow filters. This flexibility allows riders to upgrade their filter without needing additional modifications to the intake system.

4. **Improved Cooling**

A high-flow air filter can help cool the engine by increasing airflow, which may reduce the risk of overheating, particularly in stop-and-go traffic or high-load conditions. This is especially beneficial for riders who frequently use their bikes in urban environments.

5. **Aesthetic Appeal**

The Meteor kit often includes a sleek, polished aluminum or chrome-plated adapter that enhances the bike s appearance. This can be a desirable upgrade for riders who prioritize both performance and style.

6. **Backed by Rebuffini s Reputation**

Rebuffini is a well-respected brand in the Harley-Davidson aftermarket community, known for producing high-quality, durable components. Their kits are often praised for their precision engineering and reliability.

7. **Potential for Increased Fuel Efficiency**

While not a guaranteed outcome, some riders report improved fuel efficiency due to the optimized airflow reducing engine strain and improving combustion efficiency. This is subjective and depends on riding style and other factors.

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### **Cons**

1. **Potential for Increased Engine Wear**

A high-flow air filter increases the volume of air entering the engine, which can lead to slightly richer air-fuel mixtures if the bike s ECU (Electronic Control Unit) is not tuned. Over time, this can contribute to carbon buildup on intake valves, pistons, and spark plugs, potentially reducing engine longevity if not addressed. Regular maintenance, such as valve cleaning and spark plug replacement, is recommended.

2. **Requires Tuning for Optimal Performance**

While the kit itself is straightforward to install, the increased airflow may necessitate a tune from a professional to optimize the air-fuel ratio. Without tuning, the engine may run leaner, leading to rough idling, reduced power, or even engine damage in extreme cases. Many riders opt to have their bike tuned by a shop like **Harley-Davidson Performance or a reputable tuner** to ensure the engine runs smoothly.

3. **Noise Increase**

High-flow air filters can make the engine sound louder, particularly at higher RPMs. While this may be desirable for some riders, others may find the increased noise level intrusive, especially in residential areas or during city riding.

4. **Cost of Additional Components**

While the adapter kit itself is reasonably priced, upgrading to a high-performance filter (e.g., K&N, Airaid) can add to the overall cost. Additionally, if tuning is required, the cost of a professional tune should be factored into the budget.

5. **Potential for Oil Leaks**

Some riders report minor oil leaks around the adapter gasket, particularly if the gasket is not properly seated or if the housing is not cleaned thoroughly before installation. Ensuring a clean and properly lubricated gasket during installation can mitigate this issue.

6. **Limited to Twin Cam Engines**

This kit is specifically designed for Harley-Davidson Twin Cam engines (e.g., Sportster, Softail, Dyna, and some Road Glide models). It will not be compatible with older Big Twin or newer Evolution engines, limiting its applicability to a subset of Harley riders.

7. **Mixed Reviews on Durability**

While Rebuffini products are generally durable, some users have reported issues with the quality of the gasket or the adapter s fit over time, particularly if the bike is ridden aggressively or in harsh conditions. Ensuring proper installation and maintenance can help extend the kit s lifespan.

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### **Conclusion**

The **Rebuffini 687736 Meteor Air Filter Adapter Kit** is a solid choice for Harley-Davidson Twin Cam owners looking to improve airflow and performance with minimal modifications. It offers a straightforward installation process, compatibility with high-performance filters, and the potential for noticeable power gains. However, it is not a plug-and-play solution it requires attention to tuning, maintenance, and potential additional costs for optimal results.

For riders who prioritize performance, are willing to invest in tuning and maintenance, and do not mind the increased noise and potential for slightly richer mixtures, this kit can be a worthwhile upgrade. On the other hand, riders who prefer stock-like reliability, minimal noise, or do not want to deal with tuning may find the benefits less compelling.

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### **Recommendation**

1. **Research and Plan**

- Ensure your bike s engine is compatible (Twin Cam only).

- Decide whether you want to pair it with a specific high-performance filter (e.g., K&N, Airaid) and factor in the cost.

- Research local tuners or Harley-Davidson Performance centers to discuss tuning options and costs.

2. **Installation**

- Follow the installation instructions carefully, ensuring the gasket is properly seated and lubricated.

- Clean the filter housing thoroughly before installing the adapter to prevent oil leaks.

- Consider using a high-quality gasket sealant if your bike sees heavy use.

3. **Tuning**

- If you plan to run the kit long-term, have your bike tuned by a professional. A tune will optimize the air-fuel mixture, reducing the risk of carbon buildup and ensuring smooth operation.

- Some riders opt for a "stock tune" with adjustments, while others prefer a more aggressive tune for maximum performance.

4. **Maintenance**

- Replace the air filter regularly (every 10,000 15,000 miles, depending on the filter type).

- Monitor spark plugs and perform valve cleaning as recommended by your mechanic.

- Keep an eye on oil consumption, as increased airflow can sometimes lead to slightly higher oil burn rates.

5. **Test Ride and Adjust**

- After installation, take your bike for a test ride to assess the changes in performance and noise.

- If you notice rough idling or hesitation, consult a tuner to adjust the settings.

The Rebuffini Meteor adapter kit is a **strong upgrade for Twin Cam Harley owners** who want to enhance airflow and performance with minimal hassle. However, it is not a "set it and forget it" solution it demands attention to tuning and maintenance. If you are prepared for these steps and want to breathe new life into your engine, this kit is highly recommended. For those who prefer a simpler, lower-commitment upgrade, alternatives like a high-quality stock-style filter or a less aggressive intake system might be preferable.

Details:

Details: New Rebuffini Meteor Assembly Hardware Kit fits carburetors Twin Cam model's 2000 later equipped . Brand: Rebuffini.

part #: 687736 prices

• $59.95-$69.95

specifications intakefuelmotorcycle:

• for models: Twin
• for makes: Harley
• brand: Rebuffini
• mpn: 687736
• part type: Adapter Cam Filter
• country of origin: United States

returns intakefuelmotorcycle:

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

shipping intakefuelmotorcycle:

• transit: 4-9 Days
• class: Standard
• type: Fixed
• cost: $18.95
• service: Standard

offer intakefuelmotorcycle:

• quantity: 1
• availability: In Stock
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• started: April 11, 2026
• options: Ship-to-home

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seller intakefuelmotorcycle:

• city: El Paso, Texas
• # reviews: 4594
• rating: 99.8%

general intakefuelmotorcycle:

• Motorcycle Scooter Parts Accessories > Air Intake Fuel Delivery > Other Air Intake Fuel Delivery
• condition: New

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