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I think the vid loses some of its appeal if you don't know any Japanese. One pull in the tunnel and a whole mess of stuff I couldn't understand at all.
Bugatti went the quad turbo route on there Veyron (sequential turbos spooling up one after another). They didnt choose 2 large turbos for there setup.
The Bugatti also has a 16 cylinder motor - so four turbos is no problem!! The GT-R is at a 10 cylinder dis-advantage. Plus the Power Enterprise GT-R has two turbos and two superchargers. PE has always done things a little different. One of the reason I like the company. But in this case, you can get much more performance out of the GT-R for less money with boost and bolt-ons.
Want to see a convoluted intake track? Take a look at the Euro only VW 1.4TSI, a factory supercharged/turbo setup. I know Power Enterprise has displayed it at TAS with a Silvia but VW does make a fuel effiecent and fun engine from a 1.4 with decent response as well.