K&N Replacement Air Filter - Honda CBR600F4i - Fits 2001 to 2007 Models

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Average Customer Rating: 4.5 out of 5 (based on 7 ratings)

Replacement Air Filters for Street Legal Motorcycles - K&N Replacement Air Filters are designed to fit right into the standard OEM motorcycle airbox. No modifications are required by the owner, no jet changes or adjustment of the carburetors is anticipated or suggested.

Customer modification of the standard airbox - removing the cover, drilling holes into the side or top will have a drastic effect on smooth carburetion. Modifications will cause the stock system to run lean and reduce horsepower. Keep your motorcycle stock and the new K&N Replacement Element will be good for the life of the engine.

Features:

Cotton mesh construction with oil treatment gives high air flow and superior filtering.
Each filter is flowbench tested to guarantee optimum performance for each motorcycle. No rejetting is necessary with stock mufflers.
K&N Air Filters save money in the long run, because they are designed for years of use and repeated cleaning.

Most Recent Review:

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By Anonymous

Pros: Performace.

Cons: Geometry of the filter is not the same as stock so there could be some issue with edge of filter not properly seated in the housing grooves.

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Average Customer Rating: 4.5 out of 5 (based on 7 ratings)

Reviewed By 6 Customers:

5 Most Recent Shown
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By Anonymous from Anytown, USA

Pros: Performace.

Cons: Geometry of the filter is not the same as stock so there could be some issue with edge of filter not properly seated in the housing grooves.

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By kirkd from phila pa

Pros: I CAN SEE THE DIFFERENCE, INSTANT HP GAIN

Cons: NONE

0 of 1 people found this review helpful.

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By john from Anytown, USA

Pros: nice increase in the mid and top end, very noticable, crisp throttle response

Cons: huge pain to get to on the f4i, had to take off the gas tank to change it. slight dip in power on the very low end could also be from having no power commander though

Comments: highly recommend. cheap compared to the gains you will get.

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By Jonathan from Anytown, USA

Pros: 1) Fits right in with no upgrades required. 2) Noticeable increase in power. 3) Increase in MPG.

Comments: This air filter is one of the best upgrades you can get for a bike. The more air your engine gets, the more power you will have, along with more MPG. My MPG went up by 25 percent! Best price on the... (Read the rest of this review)

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K&N first impression

By Justin from Anytown, USA

Pros: Size and fit were identical to stock...very easy installation.

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