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K&N Replacement Air Filter AUDI A8 4.2L-V8; 2004-2005

Marsoni M251S
Sale price$79.56
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K&N Replacement Air Filter AUDI A8 4.2L-V8; 2004-2005K&N washable, reusable High Flow Air Filters feature a state of the art design of layered, oiled cotton media engineered to improve airflow and capture contaminants, and are designed to provide an increase in horsepower. Each performance air filter is reusable, engineered to last for the entire lifespan of your vehicle, and backed by K&N's 10 Year Million Mile Limited Warranty. K&N drop in replacement filters are designed to install easily into your
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
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4.6 ★★★★★
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Michael Rhodes
San Leandro, US
★★★★★ 5
Outboard thermostat
Works fine. A little pricey but better to buy the best than risk a cheap failure and destroy your engine like i did once.
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Reviewed in the United States on May 29, 2026
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carlos febus
Massapequa, US
★★★★★ 5
Good
Good
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Reviewed in the United States on April 27, 2026
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Will Rhoden
Boise, US
★★★★★ 5
Works as it should
Works as it should
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Reviewed in the United States on March 24, 2026
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kelly napper
Houston, US
★★★★★ 4
Four Stars
Just what I needed
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Reviewed in the United States on October 14, 2016
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Paul Schneeman
West Palm Beach, US
★★★★★ 5
Functioned as advertized.
Installed these in my Whalers 96 200 Offshore. No issues, used permatex gasket compound on aluminum engine parts after cleaning with fine brass wire wheel.
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Reviewed in the United States on November 20, 2024

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