S-S CYCLE MN-0Q2E Breather Conversion Fltr Bh Kit Reviews MN/0Q2ES

( Brand: S-s Cycle ), ( Manufacturer Part Number: MN/0Q2E ), ( Compatible Make: Harley Davidson ), ( Compatible Model: Fltr Road Glide ), ( Bundle Description: 1 Pc Genuines S Cycle Breather Conversion Kit ), ( Type: Breather Conversion Kit ), ( Core Charge: Free No Core Charge ), ( Fitment Type: Direct Replacement )

Review S CYCLE Scycle Mn/0q2esbreather Conversion Kit Harley Davidson Fltr Bh fits ROAD GLIDE 1998

The **Cycle MN/0Q2ES Breather Conversion Kit** is a meticulously engineered aftermarket upgrade designed to transform the performance and efficiency of your **1998 Harley-Davidson FLTR Road Glide (BH) with the MN/0Q2E engine**, offering a seamless transition from the stock air-cooled, carbureted powerplant to a more refined, high-performance breathing system. This kit is specifically tailored to address the limitations of the original air-cooled, single-carburetor setup by introducing a sophisticated **airbox and breather system** that significantly enhances airflow, reduces backpressure, and optimizes combustion. By replacing the restrictive stock breather with a high-flow, dual-chamber design, the kit ensures cleaner air intake, minimizes oil carryover, and prevents the buildup of harmful carbon deposits that plague older Harley engines. The **Cycle MN/0Q2ES** is crafted from durable, high-quality materials, including reinforced plastic and precision-machined components, ensuring longevity and compatibility with the FLTR s unique under-seat architecture. This conversion not only improves throttle response and horsepower but also reduces engine strain, leading to a smoother, more reliable ride. Whether you're a cruiser looking to extract every ounce of power from your classic Road Glide or a restomod enthusiast seeking to modernize your bike s breathing system, this kit provides a straightforward yet impactful solution without the need for extensive modifications. With its easy installation process requiring minimal tools and no welding it stands as a practical choice for riders who want to breathe new life into their Harley s aging air-cooled heart.

### **Pros and Cons of the Cycle MN/0Q2ES Breather Conversion Kit for a 1998 Harley-Davidson FLTR Road Glide (BH MN/0Q2E)**

#### **Pros**

1. **Improved Engine Breathing and Performance**

The stock breather system on Harley-Davidson engines, particularly the Evolution Big Twin (Evo), can restrict airflow, leading to reduced power and efficiency. The Cycle MN/0Q2ES kit replaces the restrictive stock breather with a more efficient aftermarket design, allowing better air intake and exhaust scavenging. This can result in a slight increase in horsepower and torque, especially noticeable under load.

2. **Reduced Carbon Buildup**

The stock breather system is prone to carbon deposits forming on the piston crowns and valves, which can reduce compression and efficiency over time. The upgraded breather helps minimize carbon buildup by improving airflow and reducing backpressure, leading to cleaner combustion and longer engine life.

3. **Easier Installation and Maintenance**

The Cycle kit is designed for straightforward installation, often requiring minimal modifications to the stock setup. It typically includes all necessary components (breather housing, hoses, and sometimes a filter) and comes with clear instructions. This makes it accessible for DIY enthusiasts who may not have extensive mechanical experience.

4. **Compatibility with Other Modifications**

If you plan to add other performance upgrades (such as a high-flow air filter, exhaust system, or camshafts), the Cycle breather kit can serve as a foundational improvement that complements these modifications. It ensures that the engine is breathing optimally before or after further tuning.

5. **Cost-Effective Performance Boost**

Compared to more extensive engine modifications (such as porting, polishing, or full camshaft upgrades), the breather conversion is relatively inexpensive. It offers a noticeable performance gain without requiring major mechanical work or expensive parts.

6. **Reduced Oil Consumption**

A well-functioning breather system helps maintain proper crankcase pressure, which can reduce oil consumption and prevent leaks from gaskets and seals. This is particularly beneficial for older Harley-Davidsons, where oil leaks are a common issue.

7. **Potential for Better Fuel Economy**

By improving combustion efficiency and reducing carbon buildup, the breather kit can contribute to slightly better fuel economy, especially noticeable during highway cruising where the engine runs leaner.

---

#### **Cons**

1. **Mixed Reviews on Performance Gains**

While many riders report noticeable improvements in throttle response and power, others particularly those with heavily modified engines or high-performance exhaust systems may not see dramatic gains. The stock Evo engine is already relatively efficient, so the breather kit s impact may be modest compared to more aggressive modifications.

2. **Potential for Increased Oil Consumption**

In some cases, a more efficient breather system can slightly increase crankcase pressure, which may lead to a small rise in oil consumption. This is usually minimal but worth monitoring, especially if you have a history of oil leaks or valve cover gasket issues.

3. **Requires Regular Filter Maintenance**

The breather kit often includes a filter (either paper or foam) that must be replaced periodically (typically every 10,000 15,000 miles). Neglecting this can negate the benefits of the upgrade and even introduce contaminants into the engine.

4. **Not a Substitute for Other Upgrades**

While the breather kit helps, it is not a complete solution for poor engine performance. If your Harley is running poorly due to worn components (e.g., valves, pistons, or ignition issues), the breather alone won t fix those problems. It s best paired with other maintenance or upgrades.

5. **Possible Voidance of Warranty (If Applicable)**

If your Harley is still under warranty (unlikely for a 1998 model), installing aftermarket parts like a breather kit could void certain coverage. Always check your warranty terms before proceeding.

6. **Installation Quality Varies by Installer**

While the Cycle kit is designed for easy installation, improper fitting (e.g., loose hoses, incorrect filter placement, or improper sealing) can lead to leaks or reduced effectiveness. Those without mechanical experience may need to seek professional help, adding to the cost.

7. **Limited Impact on Stock Engines**

If your Harley is already running well with minimal modifications, the breather kit may not provide a significant enough improvement to justify the cost. The gains are more noticeable on engines that are already modified or showing signs of carbon buildup.

---

### **Conclusion**

The **Cycle MN/0Q2ES Breather Conversion Kit** is a worthwhile upgrade for a 1998 Harley-Davidson FLTR Road Glide, particularly if your engine is showing signs of carbon fouling, sluggish throttle response, or reduced efficiency. It offers a cost-effective way to improve breathing, reduce carbon buildup, and enhance overall performance without requiring extensive modifications. The installation is straightforward, and the benefits such as better power delivery and cleaner combustion are often noticeable.

However, the gains are not revolutionary, and the kit is most effective when paired with other maintenance or upgrades. It is not a cure-all for worn-out engines but serves as a solid foundational improvement. For riders who prioritize ease of installation, affordability, and incremental performance gains, this kit is a strong recommendation. Those seeking dramatic power increases should consider pairing it with other modifications (e.g., high-flow air filter, exhaust system, or camshafts).

### **Recommendation**

- Your Harley is showing signs of carbon buildup or reduced performance.

- You want a simple, cost-effective way to improve engine breathing and efficiency.

- You plan to add other performance upgrades in the future.

- You are comfortable with basic maintenance (e.g., replacing the filter regularly).

- Your engine is already running well with no noticeable issues.

- You are looking for a major power boost (consider more aggressive modifications instead).

- You are unwilling to perform basic maintenance on the kit.

**Final Verdict:** The Cycle breather kit is a **solid, low-risk upgrade** that can enhance your 1998 Harley s performance and longevity. It s particularly valuable for riders who want to optimize their stock or lightly modified engine without significant expense or complexity. Pair it with regular maintenance (filter changes, oil checks) to maximize its benefits.

Details:

Cycle Breather Conversion Kit for 1998 Harley Davidson FLTR Road Glide - bh: Status: In Stock.

part #: mn0q2e price

• $66.92

specifications intakefuelmotorcycle:

• for models: Road, Glide
• for makes: Harley, Davidson
• for years: 1998
• brand: S-s Cycle
• mpn: Mn/0q2e
• compatible make: Harley Davidson
• compatible model: Fltr Road Glide
• bundle description: 1 Pc Genuines S Cycle Breather Conversion Kit
• type: Breather Conversion Kit
• core charge: Free No Core Charge
• fitment type: Direct Replacement

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

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• rating: 99.3%
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• # reviews: 23389

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

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• quantity: 1
• options: Ship-to-home
• availability: In Stock
• sold: 0
• started: May 28, 2026

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