Here's a view of our air filter, as well as the airbox. The airbox view is looking forward from the left rear wheel well with the wheel off the car and the wheel well liner removed. You have to do that to change the air filter. I have a few K&N filters coming in and I'll find one that fits...it could be the GT-S filter, but I'm not sure. In the air box pic you can see where the panel slides in. The snorkel thing on the LHS is visible through the driver's side air intake behind the door.