
HKS mushroom filters are air intake filters designed for use in vehicles. They are available in a variety of colours, including green and yellow, and are marketed as providing high air intake efficiency and dust filtration. The filters are also washable and reusable. However, there are mixed reviews regarding their effectiveness, with some users reporting issues with reliability and filtration. Some claim that the filters cannot withstand extreme heat and can fall apart, while others state that they do not filter effectively, resulting in dirty intakes. Nonetheless, the HKS mushroom filters remain a popular choice for automotive enthusiasts due to their sleek design and potential performance benefits.
| Characteristics | Values |
|---|---|
| Washable | Yes |
| Reusability | Can be washed with water or soap and reused |
| Installation | Easy |
| Airflow | High |
| Filtration | Ineffective at filtering according to some users |
| Replacement | Needs to be replaced every 6,000-10,000 km or every 6-12 months |
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What You'll Learn

HKS mushroom filters are washable and reusable
The HKS mushroom filter is available in two types: the Red/Wet 2 layer filter and the Green /Dry 3 layer filter. The 3-layer dry-type polyurethane filter provides high air intake efficiency, dust filtration, and long product life. The wet type 2-layer filter is also available, which is a wet 2-layer polyurethane form impregnated with a special high viscosity adhesive.
The HKS mushroom filter is designed to improve throttle response and increase horsepower. The hemispherical honeycomb structure makes the chaotic airflow evenly dispersed in six directions, allowing the air to form a stable airflow. The plates and nets are made of high-quality stainless steel, which prevents them from rusting in cold air or high moisture locations.
The HKS mushroom filter is a popular choice for car enthusiasts, with many reporting positive experiences with the product. Some users have praised its sleek and clean design, while others have noted its high performance and efficiency. However, there are also mixed reviews, with some people reporting issues with filtration and the filter falling apart. It is recommended that the air filter element be replaced regularly, ideally every 6,000-10,000 km or every 6-12 months.
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They are made of micro cotton gauze, stainless steel, and polyurethane
HKS mushroom filters are made of micro cotton gauze, stainless steel, and polyurethane. The micro cotton gauze filter material can be washed with water or soap and can be reused. The plates and nets are made of high-quality stainless steel, which prevents rusting in cold air or high moisture locations. The 3-layer dry-type polyurethane filter provides high air intake efficiency, dust filtration, and long product life.
The HKS mushroom filters are suitable for highly modified or turbocharged vehicles that can achieve higher airflow. They are equipped with adjustable clamps, ensuring a perfect fit. The high flow air filter can reduce the pressure of the engine's air intake, while increasing the air intake per unit of time and volumetric efficiency when the engine is running.
The HKS mushroom filters have received mixed reviews. Some users have reported issues with filtration, claiming that their intake pipes were full of small particles and dust. Others have praised the filters for their high flow and ease of installation.
It is recommended to replace the air filter element at regular intervals, with a suggested replacement every 6,000-10,000 km or every 6-12 months.
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They are suitable for modified or turbocharged vehicles
HKS mushroom air filters are suitable for modified or turbocharged vehicles. They are designed to increase airflow and improve throttle response and horsepower. The washable filters are made of high-quality stainless steel, which prevents rusting in cold air or high moisture locations. The micro cotton gauze filter material can be washed with water or soap and reused.
The HKS mushroom air filters are available in two types: the Red/Wet 2-layer filter and the Green/Dry 3-layer filter. The 3-layer dry-type polyurethane filter is designed to provide high air intake efficiency, dust filtration, and long product life. It is recommended to replace the filter every 6,000-10,000 km or every 6-12 months.
The HKS mushroom air filters have received mixed reviews from customers. Some people have reported that the filters are unreliable, unable to withstand extreme heat, and can fall apart and get sucked into turbos. Others have reported that the filters do not filter effectively, allowing dirt and small particles into the intake. However, some customers have defended the product, stating that they have never had any issues with the filter breaking or melting.
It is important to note that proper maintenance and replacement of the HKS mushroom air filters are necessary to ensure optimal performance. While the filters are washable and reusable, they should be replaced at regular intervals to maintain their effectiveness.
Overall, the HKS mushroom air filters can be a suitable option for modified or turbocharged vehicles, but it is essential to consider the mixed reviews and potential issues that have been reported by some customers.
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They can be unreliable and may not withstand extreme heat
HKS mushroom filters are known for their sleek and modern aesthetic, but their reliability has been questioned by some users. One of the main concerns is their ability to withstand extreme heat. Some users have reported that the filters cannot handle the high temperatures generated by powerful engines, leading to concerns about their durability and safety.
There are reports that the filters have melted or fallen apart, potentially causing blockages or damage to the engine. This is a significant issue, as it can result in costly repairs and even pose safety hazards if left unchecked. While some users have not encountered these issues, the potential for extreme heat damage is a valid concern.
The HKS mushroom filters are designed to be washable and reusable, which is a convenient feature. However, it is important to follow the recommended replacement intervals to maintain optimal performance and avoid potential issues. The filters are available in both a two-layer and a three-layer design, with the three-layer option offering improved filtration and longer product life.
Despite the concerns about reliability, many users appreciate the high airflow and performance that HKS mushroom filters provide. The filters are designed to increase airflow and improve throttle response, resulting in increased horsepower. The washable and reusable nature of the filters also contributes to their appeal, as it reduces maintenance costs and allows for easier upkeep.
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They are available in red/wet 2-layer and green/dry 3-layer filters
HKS mushroom filters are available in red/wet 2-layer and green/dry 3-layer filters. The red/wet 2-layer filter is a polyurethane foam filter that can be impregnated with a special high-viscosity adhesive. This filter type is designed to provide high air intake flow efficiency without sacrificing filtration ability. The green/dry 3-layer filter, on the other hand, is a dry-type polyurethane filter that offers high air intake efficiency, superior dust filtration, and extended product life. It is recommended to replace the filter element every 6,000-10,000 km or every 6-12 months for optimal performance.
The HKS mushroom filters are designed to improve throttle response and increase horsepower. They are suitable for turbocharged vehicles, and the adjustable clamps ensure a perfect fit. The filters are made of high-quality materials, with the plates and nets constructed from stainless steel to prevent rusting, even in cold air or high moisture locations. The micro cotton gauze filter material is washable and reusable, making it a durable and cost-effective choice.
The red/wet 2-layer filter is known for its high airflow capabilities, providing efficient air intake without compromising filtration. This filter type is ideal for those seeking maximum airflow while still maintaining adequate filtration. On the other hand, the green/dry 3-layer filter excels in filtration performance, offering superior dust filtration and extended product life. This filter type is perfect for those who prioritize filtration efficiency and longevity over absolute maximum airflow.
The HKS mushroom filters have received mixed reviews from users. Some report issues with dirty intakes and filtration, while others claim that their intakes remain clean. The 3-layer dry filter is generally considered an improvement over the 2-layer race-style foams, as it provides better filtration. However, some users have expressed concerns about the filters not standing up to extreme heat and the potential for them to fall apart and get sucked into turbos. Nonetheless, many appreciate the sleek and clean look of the HKS filters compared to bulkier alternatives.
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Frequently asked questions
Yes, the micro cotton gauze filter material of the HKS mushroom filters can be washed with water or soap and can be reused.
It is recommended that you replace your HKS mushroom filter every 6,000-10,000 km or every 6-12 months.
The HKS mushroom filter is suitable for highly modified or turbocharged vehicles that can achieve higher airflow. It can increase the air intake per unit of time and volumetric efficiency when the engine is running, improving throttle response and increasing horsepower.

























