£250.48

It has never been this cheap. We have no record of a lower price.

£250 today · cheaper than every other day in the last 3 months

K&N X-Stream Top Air Filter: High Performance, Premium, Washable, Replacement Engine Filter: Shape: Round, 66-3210

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Price History & Forecast

Grey patches = out of stock. Cheaper = lower on the chart. Hover for exact prices.

Last 15 days · 15 data points (no recent data)

Historical
Generating forecast…
£251.03 £250.42 £250.56 £250.69 £250.82 £250.95 £251.09 29 July 2026 01 August 2026 05 August 2026 08 August 2026 12 August 2026
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Rot, 66-3210

Price data last checked 76 day(s) ago - refreshing...

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Price Distribution

Price distribution over 15 days • 2 price levels

Days at Price
Current Price
1 day · current 14 days 0 4 7 11 14 £250 £251 Days at Price

Price Analysis

Most common price: £251 (14 days, 93.3%)

Price range: £250 - £251

Price levels: 2 different prices over 15 days

Key Features

ENGINEERED POWER: State-of-the-art filtration media provides up to 50% 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%.

EASY INSTALLATION: Pre-oiled and built with simple clamp-on design. One of the easiest and most cost-effective upgrades for your vehicle for quick performance gains.

SAVES MONEY: K&N high-flow replacement air filters will save you $250 over 10 years by avoiding disposable filters.

ECO-FRIENDLY: Using a washable, reusable product helps reduce replacement waste. A K&N filter will last longer than 10 disposable filters.

WORLD CLASS 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.

HIGH QUALITY: Made in America.

RACE TESTED: The Official Air Filter of NASCAR. Trusted on the racetrack—made for your vehicle.

Product Specifications

Brand
K&N
Model
66-3210
Colour
Rot
Domain
Amazon UK
Release Date
14 October 2015
Listed Since
07 August 2012

Barcode

No barcode data available

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