So I rolled the dice and ordered a used (damaged airbox) COBB SF + airbox on eBay last week. It showed up yesterday and after repairing (bending) the box back into shape, the install was very easy and it works great with the Stage 1 + SF COBB OTS map. New it would have been ~$365+ vs. $185, so I am very pleased with how it worked out. I may need to repaint it in the future as a lot of the coating was cracking and peeling off when I was bending it back into shape, but that is no big deal. I only did a brief road test after letting the car idle to operating temp following the reflash, so I am looking forward to driving it some over the weekend. I think I will tackle the suspension and fuel pump next when those things arrive.