Review on 🚗 K&N Cold Air Intake Kit: Boost Horsepower, Enhance Performance: Fits 2003-2004 FORD (Focus)63-1101 by Chris Nako

I don't even have words for this air filter. The regular filter is good for 150,000, which is stupid. It was so dirty you can't even change it yourself. I have to take it to the dealer and the dealer is the only one with a whole air filter. Tried everywhere. The dealer wanted $512 and this K&N is half the price with better power/mileage and faster throttle response. You better take this one Installation took about an hour and a half. It took an hour to remove just the stock air filter. The K&N instructions made installation easy. Also, it's connected to the main airflow, so the sensor doesn't work. This is necessary if you are replacing an old filter or just want to replace an old one. SAVE THE OLD FILTER AND PARTS. AS SOON AS YOU CAN I THINK YOU SHOULD RETURN ONE IN STOCK. K&N DOES NOT HAVE HYDROCARBS FOR THIS FILTER:/-2004 Ford Focus ZX3 2-Door Hatchback 2.3L