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£67.57
K&N E-3971 Washable and Reusable Car Custom Air Filter
E-3971
Price data last checked 69 day(s) ago - refreshing...
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About as cheap as it gets. The only time it was cheaper was 2 months ago.
£68 today · all-time low £67 (Jun 2026) · usually the usual
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Price History & Forecast
Grey patches = out of stock. Cheaper = lower on the chart. Hover for exact prices.
Last 22 days · 22 data points (no recent data)
Price Distribution
Price distribution over 22 days • 2 price levels
Price Analysis
Most common price: £69 (12 days, 54.5%)
Price range: £67 - £69
Price levels: 2 different prices over 22 days
Key Features
Ultimate longevity: 10-year/million mile limited warranty protects for the life of your vehicle
Engineered power: State-of-the-art filtration media provides up to 50 Percent more airflow than disposable paper filters to increase power and acceleration; clogged or dirty air filters can reduce your vehicle’s acceleration by up to 10 Percent
Easy installation: Pre-oiled and ready to drop into your factory air box; upgrades for your vehicle for quick performance gains
Using a washable, reusable product helps reduce replacement waste; A K&N filter will last longer than 10 disposable filters
Protection: Pushing the limits of engine protection by protecting your engine from harmful contaminants
Low-maintenance design: 50,000 miles before your first cleaning under normal highway driving conditions
The vehicles for which this product is suitable can be found in the product description
Product Specifications
- Brand
- K&N
- Model
- E-3971
- ASIN
- B001NAUAA6
- Domain
- Amazon UK
- Release Date
- 22 September 2019
- Listed Since
- 24 July 2012
Barcode
No barcode data available
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