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BMW E28 K&N Performance Air Filters

BMW E28 K&N Performance Air Filters This is absolutely the least expensive and easiest way to improve horsepower and extend the life of your air filter! The sandwiched layers of cotton gauze, specially treated with K&N air filter oil, provides five times more filtering surface over the element circumference. This serves to smooth incoming air flow while reducing intake restriction and thereby boosting horsepower. K&N Performance Air Filters come pre-oiled for easy installation and with K&N's famous 1,000,000 mile warranty. K&N filters are easy to clean: wash with cold water every year and re-oil it every two years for a lifetime of performance.
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K&N Air Filter Cleaning Kit - Aerosol Preserve and maintain your air filter for a lifetime, never having to spend another dollar on a replacement filter again!
K&N
Part #: 99-5000KT
Price: $10.16 (USD) 
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E24 M6, E28 M5 K&N High-Flow Air Filter This is absolutely the least expensive and easiest way to improve horsepower and extend the life of your air filter!
K&N
Part #: 33-2559
Price: $79.99 (USD) 
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3.0si, 320i 80-83, 318i 84-86, 5/6/7-series 77-86, E30 M3, E30 323i K&N High-Flow Air Filter This is absolutely the least expensive and easiest way to improve horsepower and extend the life of your air filter!
K&N
Part #: 33-2005
Price: $79.99 (USD) 
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K&N Recharger Kit Cleaning and re-oiling your K&N filter will prolong its life and maintain K&N's performance adavantage. You should clean your filter every year with water and K&N's cleaning solution and re-oil the filter every two years. K&N air fitlers come pre-oiled.
K&N
Part #: 99-5050
Price: $17.00 (USD) 
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K&N
Part #: 99-5000
Price: $17.00 (USD) 
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E28 528e, E30 318i/325e/i, 850i, 750i, 525i 1989-90, E36 318i K&N High Flow Air Filter 750iL/850i requires 2 filters
K&N
Part #: 33-2059
Price: $48.99 (USD) 
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E32 735i 1988-93, E34 535i 1989-93 K&N High Flow Air Filter This is absolutely the least expensive and easiest way to improve horsepower and extend the life of your air filter!
K&N
Part #: 33-2573
Price: $57.99 (USD) 
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