Here's a kick in the head, was going to install the Airaid Poweraid throttle body spacer yesterday, get everything off, and ready to go. Unscrew the 3 bolts holding the throttle body onto the intake manifold. Go back to the destructions, "remove the studs with a 4mm wrench", so i go into the tool boxes.... Look through every single drawer, every kit... And what a slap to the face, not a single 4mm anthing! Wrench or head. So, here i am, with the beauty cover off, intake off, spacer ready to be slipped in. And i can't even take out the studs! Jeeze that made my day.