Instruct: Classify Amazon reviews into positive or negative sentiment
Query: K&N Strikes again

I have purchased K&N products before and I will never buy a normal air filter again. They are a quick installation that really makes a difference in performance and never needs replacing. Be sure to clean the filter and oil the filter per specs for the best performance. I bought this filter for my 2006 RX 400h and it fits perfectly. Double check that the filter is in the correct orientation. I noticed two extra rubber parts on the filter that lined up with my air chamber. I wish that there was a simple instruction saying which side goes where and what goes up. After looking over the filter and air compartment it was simple to figure out.