Pro-Tip. Spend the 3 minutes it takes to remove the air box. It's 2 bolts and a nut, all 13mm, and it opens up a large area that makes work a lot easier for any work you do on that side of the engine compartment. Same thing for the E-Fan, it's 2, 8mm bolts and an electrical connector and comes right out and again frees up a lot of work space.