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2004 Hyundai Elantra Air Filters - Custom Fit

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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!!!

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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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Spectre Air Filter Reviews


not a perfect fit

Reviewed By Dennis G (Fremont, WI) Reviewed for a 2008 Volkswagen Beetle —6/18/2018 8:08 PM

Although the Spector filter drops into the air filter box, the perimeter rectangle is not straight on all sides. Also the top frame is a semi-hard rubber that has a raised lip that is not as smooth a fit as the factory version which has a soft foam gasket.

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