K&N High Flow Air Filter E-3225 - Harley & Indian V-Twin
About K&N
K&N pioneered the washable, reusable cotton-gauze air filter and has been building intake products since 1969. On a V-twin, an intake swap is usually step one of the classic uncork — filter, exhaust, then tune.
Unleash more performance from your Harley or Indian V-twin with the K&N E-3225 High Flow Air Filter. Engineered with pleated cotton-gauze media, this filter is designed to increase airflow to your engine, optimizing combustion and power delivery. It's a direct replacement that drops into your OEM airbox, making it a straightforward upgrade.
Why riders pick this
- Increases airflow for better engine performance
- Pleated cotton-gauze media for superior filtration
- Washable and reusable for extended service life
- Pre-oiled and ready to install
- Designed for direct OEM airbox fitment
A high-performance engine needs to breathe, and the K&N E-3225 High Flow Air Filter is built to deliver. Unlike restrictive stock paper filters, K&N's signature pleated cotton-gauze media provides a significantly larger filtration area, allowing your V-twin to draw in more air. This increased airflow can translate to better throttle response and more usable torque, especially when paired with other performance upgrades. Each filter comes pre-oiled and ready for immediate installation, ensuring you spend less time in the garage and more time on the road.
Optimized Airflow and Filtration
- Pleated cotton-gauze media for increased airflow
- Maintains excellent filtration efficiency
- Washable and reusable design for long service life
- Pre-oiled and ready for immediate installation
- Direct fit for OEM airboxes on compatible V-twins
Performance and Longevity
The K&N E-3225 filter is not just about performance; it's also built for durability and ease of maintenance. Its washable and reusable nature means you won't be constantly buying disposable filters, saving you money in the long run. Designed to drop into your factory airbox, it typically requires no fuel management modifications, making it an accessible first step into performance upgrades for your Harley-Davidson or Indian Motorcycle.
Specifications
- Brand: K&N
- Manufacturer Part #: E-3225
- UPC: 024844003744
- Length: 6.31 in
- Width: 6.56 in
- Height: 3.5 in
- Weight: 0.68 lbs
Common questions
Do I need a tuner or ECU flash with this K&N air filter?
Fuel management modifications are typically not required with this filter, as it's designed to work within the stock parameters of most OEM airboxes.
How often should I clean and re-oil this air filter?
K&N recommends inspecting the filter at every oil change. Cleaning and re-oiling frequency depends on riding conditions, but typically every 10,000 to 20,000 miles.
Is this a direct replacement for my stock air filter?
Yes, the K&N E-3225 is designed as a direct drop-in replacement for the OEM air filter in compatible V-twin motorcycles. Please confirm fitment for your specific model.
Ordering from Vtwinbikers
- Brand new, sourced through authorized US distribution — never used, never grey-market.
- Not sure it fits? Use Shop by Bike to filter by your year and model, or email us and we will confirm before you order.
- Harley-Davidson and Indian Motorcycle is all we do, so you are talking to people who ride what you ride.
| BRAND | K&N |
| TYPE | Air Filters |
| SKU | 793225 |
| WEIGHT | 0.68 lb |
