Where is the engine air filter on an Acura?

Acura - 2006 RL - The filter "box" links obviously to the air intake hose into the manifold/engine. It takes a few minutes but once you get all 4 screws out of the box "lid", you'll be able to pull the filter out. I put a new K&N in there and think it's a nice change. I couldn't see through my old paper style filter and that means less airflow/lower efficiency and power. One thing - don't take out the larger (10 mm head) screw that holds the box to the car frame - just remove the (qty 4) 8 mm head screws (also have Phillips slots but they'll strip easy - use the socket!) and you'll be all set. I also loosened the band clamp on the air hose to the engine and it made it easier to manipulate the box to get to the filter. I'd recommend a permanent filter like the K&N - $47 and no more replacements @ $30 each. Good luck! - Ken ATL