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2004 Hyundai Elantra Air Filters

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Latest Customer Reviews

K&N Air Filters Reviews


A Breath of Fresh Air

Reviewed By Robert R (Bruceton Mills, WV) Reviewed for a 2004 Hyundai Elantra —7/16/2007 4:30 AM

I am currently installing K&N air filters on my 3rd vehicle. My original was in a 2004 Hyundai Elantra for 85,000 miles. As far as I know, it still is in the car performing fine. The only thing that was done to the filter was cleaning and re-oiling. My gas mileage was increased by 1-3 MPG. I just installed K&N filters in my 2006 Elantra and a 2005 Ford Freestyle. It is too early to evaluate the MPG gain, but I anticipate a 5% to 10% gain in each vehicle. Keep up the good work!!!

View More Reviews

K&N Air Filters Reviews


A Breath of Fresh Air

Reviewed By Robert R (Bruceton Mills, WV) Reviewed for a 2004 Hyundai Elantra —7/16/2007 4:30 AM

I am currently installing K&N air filters on my 3rd vehicle. My original was in a 2004 Hyundai Elantra for 85,000 miles. As far as I know, it still is in the car performing fine. The only thing that was done to the filter was cleaning and re-oiling. My gas mileage was increased by 1-3 MPG. I just installed K&N filters in my 2006 Elantra and a 2005 Ford Freestyle. It is too early to evaluate the MPG gain, but I anticipate a 5% to 10% gain in each vehicle. Keep up the good work!!!

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K&N Cabin Air Filters Reviews


High Quality

Reviewed By Joseph C (HIXSON, TN) Reviewed for a 2012 Hyundai Elantra —8/14/2017 2:36 PM

Much more substantial than OEM or after market filters. Used in 2012 Hyundai Elantra, and with $10 rebate, it was within $5 of the OEM price. Doesn't appear to be top or bottom, though this isn't mentioned in instructions, and it does matter (for other filters anyway). A bit confusing. Haven't purchased the reconditioning cleaner (for annual use), so factor that in total cost. My only concern would be any additional strain on AC due to flow restriction due to this filter's substantial bulk.

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