Yes, many people use that as a boost controller, I would have to see the engine to give any recommendations on were to mount since it's not one were familiar with. Can't really tell with the engine cover in place.
But if that is like the audi 1.8T there is a spot under the cover of the the tank on the right with the green cap that the pump just slide right in perfect and the cover goes right back on. Making it as stealth as can be. Plus if you still have the cover panels for were the battery is at there plenty of stealth places to hide it there.