Upgrading your Harley Davidson with a stage 1 air cleaner is a very effective ways to improve engine breathing, throttle response, and overall performance. But with dozens of options on the market, choosing the right one can be overwhelming. We researched manufacturer specifications, industry standards, and aggregated owner feedback to bring you this honest, evidence-based comparison of the best stage 1 air cleaners for Harley Davidson. Our evaluation focuses on real-world performance, build quality, ease of installation, and value, so you can make an informed decision.
| Photo | Product | Score | Buy |
|---|---|---|---|
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Screamin Eagle Heavy Breather Extreme Top Pick High-flow filter with rain sock, includes backing plate and filter element |
9.0 | 🛒 Check Price |
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K&N High Performance Air Cleaner Kit Best Value Washable and reusable cotton gauze filter, includes chrome cover |
8.7 | 🛒 Check Price |
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Arlen Ness Big Sucker Air Cleaner Kit Best for Performance Large diameter filter with billet aluminum backing plate |
8.4 | 🛒 Check Price |
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S&S Cycle Teardrop Air Cleaner Classic Style Teardrop-shaped chrome cover, washable foam filter |
8.1 | 🛒 Check Price |
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DK Customs Outlaw 585 Air Cleaner Compact Design Low-profile design with billet aluminum construction |
7.8 | 🛒 Check Price |
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Vance & Hines High Flow Air Cleaner Budget Friendly Steel backing plate with high-flow paper filter |
7.3 | 🛒 Check Price |
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H-D Screamin Eagle Stage 1 Air Cleaner Kit OEM Upgrade Factory-designed kit with washable filter and chrome cover |
7.2 | 🛒 Check Price |
1. Screamin Eagle Heavy Breather Extreme: Top Pick
The Screamin Eagle Heavy Breather Extreme stands out as a top performer in our evaluation. Based on owner feedback and the spec sheets, this air cleaner delivers a substantial increase in airflow, which translates to better throttle response and a more aggressive engine sound. The included rain sock is a thoughtful addition for riders who encounter wet conditions, ensuring the filter stays dry and functional. Installation is straightforward, with a direct bolt-on design that fits most Harley Davidson models without the need for additional parts.
However, this kit comes at a higher price point than many competitors, which may deter budget-conscious buyers. Additionally, while the filter is washable and reusable, the cleaning process is slightly more involved than some simpler designs. Riders looking for a more affordable option or those who prefer a classic open-element look might want to consider alternatives.
- High-flow filter design delivers significant airflow increase for stage 1 tuning.
- Includes rain sock for wet weather protection without sacrificing performance.
- Direct bolt-on fit for most Harley Davidson models with no modifications required.
Pros: Excellent airflow and throttle response improvement.; Durable construction with quality materials.
Cons: Premium pricing compared to other stage 1 kits.
2. K&N High Performance Air Cleaner Kit: Best Value
The K&N High Performance Air Cleaner Kit offers a compelling balance of performance and value. In our comparison, this kit provides noticeable improvements in airflow and engine response, especially when paired with a stage 1 tuner. The cotton gauze filter is washable and reusable, backed by K&N’s million-mile warranty, making it a cost-effective choice over time. The chrome cover gives a classic, polished look that complements many Harley models.
That said, the filter requires regular cleaning and re-oiling to maintain optimal performance, which some owners may find inconvenient. Additionally, the included cover is somewhat basic compared to billet aluminum options. Riders seeking a more premium aesthetic or those who prefer a maintenance-free filter might look elsewhere.
- Washable and reusable K&N filter with million-mile warranty.
- Chrome cover adds classic styling to your Harley.
- Simple installation with included hardware and instructions.
Pros: Excellent long-term value due to reusable filter.; Good performance gains for the price.
Cons: Filter requires periodic cleaning and re-oiling.
3. Arlen Ness Big Sucker Air Cleaner Kit: Best for Performance
The Arlen Ness Big Sucker Air Cleaner Kit is a favorite among performance enthusiasts. Based on owner feedback and manufacturer specs, this kit offers one of the largest filter surfaces available, allowing for maximum airflow into the engine. The billet aluminum backing plate is both durable and helps dissipate heat, which is beneficial for tuned engines. The included pre-filter adds an extra layer of protection against debris.
However, the large diameter filter can interfere with certain fuel tank configurations, particularly on older or custom models. Installation may require some adjustments or spacers. Riders with tight clearances or those who prefer a more compact design should consider other options.
- Oversized filter element for maximum airflow capacity.
- Billet aluminum backing plate provides rigidity and heat dissipation.
- Includes pre-filter for added engine protection.
Pros: Exceptional airflow for high-performance builds.; Sturdy billet construction.
Cons: Larger size may cause clearance issues with some fuel tanks.
4. S&S Cycle Teardrop Air Cleaner: Classic Style
The S&S Cycle Teardrop Air Cleaner brings a touch of nostalgia to your Harley. Its distinctive teardrop shape and chrome cover are designed to complement classic and retro-styled bikes. In our evaluation, the foam filter provides adequate airflow for stage 1 upgrades, though it may not match the flow of larger cotton gauze elements. Installation is straightforward, with a direct bolt-on design for Twin Cam engines.
The foam filter is washable but may need more frequent cleaning in dusty conditions compared to K&N-style filters. Additionally, the performance gains are modest relative to some competitors. Riders seeking maximum power or those who prefer a more modern, open-element look might want to explore other options.
- Iconic teardrop shape for a vintage Harley look.
- Washable foam filter element for easy maintenance.
- Direct bolt-on fit for most Twin Cam models.
Pros: Classic styling that appeals to traditionalists.; Good build quality with chrome finish.
Cons: Foam filter may require more frequent cleaning than cotton gauze.
5. DK Customs Outlaw 585 Air Cleaner: Compact Design
The DK Customs Outlaw 585 Air Cleaner is designed for riders who need a compact solution. Its low-profile shape fits in tight spaces where larger air cleaners won’t go, making it ideal for custom builds or bikes with aftermarket fuel tanks. The billet aluminum construction is light yet durable, and the foam filter with pre-filter offers decent filtration. Installation is simple with basic tools.
However, the smaller filter surface area means it may not deliver the same high-RPM airflow as larger kits, potentially capping performance gains for aggressive stage 1 tunes. Riders seeking maximum horsepower or those who prioritize airflow over fitment should consider a larger option.
- Compact, low-profile design for tight clearance areas.
- Billet aluminum construction with black or chrome finish.
- Includes washable foam filter and pre-filter.
Pros: Great for bikes with limited space (e.g., forward controls).; Lightweight and easy to install.
Cons: Smaller filter area limits high-RPM airflow.
6. Vance & Hines High Flow Air Cleaner: Budget Friendly
The Vance & Hines High Flow Air Cleaner is a solid choice for riders on a tight budget. It offers a noticeable improvement over the stock air cleaner, with a high-flow paper filter that allows more air into the engine. The steel backing plate is functional if not fancy, and installation is straightforward with included hardware. For the price, it’s a good way to get into stage 1 without a big investment.
However, the paper filter is disposable and will need replacement, increasing long-term costs. The steel backing plate is prone to rust if not properly maintained, and the overall build quality is not as solid as more expensive kits. Riders who plan to keep their bike for years or want a reusable filter should invest in a higher-end option.
- Affordable entry-level stage 1 air cleaner.
- High-flow paper filter for improved airflow over stock.
- Includes gasket and mounting hardware.
Pros: Very budget-friendly price point.; Simple, no-fuss installation.
Cons: Paper filter is not washable or reusable.; Less durable construction than billet aluminum kits.
7. H-D Screamin Eagle Stage 1 Air Cleaner Kit: OEM Upgrade
The H-D Screamin Eagle Stage 1 Air Cleaner Kit is the official upgrade from Harley-Davidson. It’s designed to fit perfectly and maintain the bike’s warranty when installed by a dealer. The washable foam filter is easy to clean, and the chrome cover integrates smoothly with the bike’s aesthetics. Installation is a breeze, even for DIYers.
However, compared to aftermarket options, this kit offers modest performance gains and carries a premium price tag. The foam filter’s airflow is not as high as cotton gauze or large-diameter filters, so riders seeking maximum power may be disappointed. It’s best for those who prioritize OEM fitment and simplicity over outright performance.
- Official Harley-Davidson accessory for guaranteed fitment.
- Washable foam filter element.
- Chrome cover matches OEM styling.
Pros: Perfect fit and finish for Harley models.; Easy installation with clear instructions.
Cons: Expensive for the performance gains offered.; Filter design is less efficient than aftermarket alternatives.
Frequently Asked Questions
What is a stage 1 air cleaner and what does it do?
A stage 1 air cleaner replaces the restrictive stock air filter and intake assembly to allow more air into the engine. This improves throttle response, increases horsepower and torque, and often enhances the engine sound. It is the first step in a stage 1 performance upgrade, which typically also includes a tuner and exhaust system.
Do I need to tune my Harley after installing a stage 1 air cleaner?
Yes, for optimal performance and to avoid running lean, it is highly recommended to install a stage 1 tuner or have the ECU remapped after upgrading the air cleaner. This ensures the air-fuel mixture is properly calibrated, preventing potential engine damage and maximizing gains.
Will a stage 1 air cleaner void my warranty?
If you install a Harley-Davidson Screamin Eagle kit, it will not void the warranty when installed by a dealer. Aftermarket kits may affect warranty coverage for related components, but under the Magnuson-Moss Warranty Act, the manufacturer must prove the aftermarket part caused the failure. It is best to check with your dealer.
How often do I need to clean or replace the filter?
It depends on the filter type and riding conditions. Foam and cotton gauze filters are washable and reusable; they should be cleaned every 5,000 to 10,000 miles or more often in dusty environments. Paper filters are disposable and typically replaced at similar intervals. Always follow the manufacturer’s recommendations.
Can I install a stage 1 air cleaner myself?
Yes, most stage 1 air cleaner kits are designed for easy bolt-on installation with basic hand tools. Instructions are usually included. However, if you are not comfortable working on your motorcycle, professional installation is recommended to ensure proper fitment and avoid damage.
Our Verdict
After researching and comparing the top stage 1 air cleaners for Harley Davidson, the Screamin Eagle Heavy Breather Extreme earns our top pick for its superior performance, durability, and thoughtful design. For riders seeking the best value, the K&N High Performance Air Cleaner Kit offers excellent gains and long-term savings with its reusable filter. Choose based on your priorities: maximum airflow, budget, or style.
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