Had a friend come over to do a quick and simple pad and rotor change on the 07 STI. All of the caliper bolts were on pretty tight took a box end wrench and a dead blow hammer to get the out except for one. The lower bolt on the passenger side is beyond stuck. Tried for 40 mins to try and break it lose, tried tons of penetrating spray, finally the bolt gave in and the head snapped off. Went and got a kit to try and back the bolt back out, drilled into the bolt pretty deep but no matter what we tried to do or used for tools the bolt was not moving at all. I've done a lot of maintenance on my own vehicles over the years and I've never seen a bolt this stubborn and this stuck. I'm going to have to have it towed somewhere to a shop for them to get that bolt out b/c I am completely out of options. What started out as an easy brake job has turned into a total nightmare.