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Old 09-04-2011, 08:21 PM
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Thumbs up E53 4.4i intake dilema

I'm fairly new on this forum, so please take it easy one me on mods or what not. Anyhow, I am thinking about replacing the OEM filter with the K&N replacement. Although it only yields minimal hp, in addition to let the engine breath a little easier, I've had pretty good experience with them with no issues or what so ever. During my search to explore other options other than K&N, I've come across AFE intake system, which, consists of a cone shape filter with heat shieds, and their version of the intake elbow. I am just curious on the effectiveness of the this particular system so the $200+ isn't just thrown away from AFE's marketing. Please share your thoughts and input. Should I stick with the K&N replacement filter or AFE system? Thanks very much...
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Old 09-05-2011, 12:43 AM
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Afe or any other intake yields nothing but looks and a bit more noise. It will do nothing for power. I would personally stick with oem air filters that are not oiled. Those can cause problems for the MAF.
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Old 09-05-2011, 01:17 AM
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Stick with OE unless you just want to change the look under the hood. No hp or fuel efficiency gain with either the AFE or a K&N filter. Some hp loss if you defeat the factory cold air intake with anything that draws air from under the hood.
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