It's mad isn't it. A few grand for a PSE, or a hundred or so for a DIY version. Only difference is that it's always on, rather than switchable. But still, if you're handy with a welder you could weld some valves in.
Apparently the 997 plenum and throttle body fits right onto the 986's 3.2. That, along with a good air filter and the de-snorkel mod, will see quite a nice increase in BHP.
Surprising what you can do to these cars
