Instruct: Classify the given review into positive or negative sentiment.
Query: great filter, tight fit

I've used K&N filters in my other cars for 7 years. THis filter has the same great construction but was a very tight fit in the factory air box. It was difficult to install (15 minutes) but having a nice, tight fit is good for ensuring the air only goes through the filter. The trick to installing is to reach behind and underneath to get a good fit on the bottom of the stock enclosure and then the sides and top align and close very nicely.