For those of you with the tein flex set up or thinking about buying one, the manual says you have to remove the rear strut tower bar to fit the motors on. After a little cutting I manage to keep the bar and mount the motors. The car has a full cage so the bar probably isn't necessary, but it holds the sub box in place. Though this may help out some of you.

 

What about the front? Does it work with a STB?

 

It should work fine up front with any strut bar.

You may have hood clearance problems. I have a boarder vented hood and it fits fine. Their site says that on the stock hood you may have to cut away the insulation.