There's good info in this thread where I got the idea to try it out. http://forums.swedespeed.com/zerothread?id=39142
Besides the obvious lovely turbo noise and pressure release sounds that you get, the car did feel quicker and smoother at higher rpm. Obviously on turbo cars the air intake temperature is not as important as N/A cars, with heatsoak the stock intercoolers are not able to cool down the temps enough and that's why we run into problems. So running open airbox would seem like a good idea since cool air is now able to flow into the engine bay through the stock snorkel as well as the IPD snorkel continuously cooling things down a bit. Any thoughts?
Besides the obvious lovely turbo noise and pressure release sounds that you get