Is it safe to put a K&N air filter in a 2012 Honda Civic?

I understand the new Honda Civics have a lot of technology in them and I wanted to know if a filter like that would interfere with the computers or the performance of the car. This is regular Civic, not an Si.

If you're talking about flat panel filter to put in the filter box, yeah, they're ok as long as you don't over-oil them. If you're talking about adding a cold air intake, then no. That'll give you worse performance. Read this article on aftermarket cold air intakes and problems with oiled filters

http://ricksfreeautorepairadvice.com/cold-air-intake/

The K&N FilterCharger® air filter is designed to achieve high, virtually unrestricted air flow while maintaining filtration levels critical to ensure long engine life. Our automotive OE (original equipment) replacement air filters generally add 1-4 horsepower. The secret to our success lies in the unique characteristics of our air filter medium that was originally developed by K&N all those years ago in the dust, sweat and tears of desert motocross racing. We just wanted to win races and stumbled on a cotton filtration technology destined to be great. Our high flow cotton gauze air filter is washable, reusable and built to last for the life of an automotive or motorcycle engine. K&N air filters consist of four to six sheets of cotton gauze layered between two sheets of aluminum wire mesh. This media is then pleated and oiled to enhance its filtering capabilities and overall performance.

To answer your second question:

K&N filters are designed to work with the stock programming of the vehicle. Please see K&N's response to claims about MAFS issue here: http://www.knfilters.com/maf/massair.htm

It is completely safe! Just go to your closest auto parts store and make sure that it is the right size for your car.

K&N filters are just like any other filter. Cotton gause instead of paper. And it is oiled. Better airflow