The subi's have a large hoodscoop directly over their TMIC, we have some crap ducting, thier IC sits off the back of the motor allowing the air to flow through, ours sits directly on top of the head with basically nowhere for the air to go...I'd say their TMIC setup is far superior to ours right out of the factory, and it's understandable that they might no see any gains on the stock turbo. But, with our stock IC losing almost 4 psi across the core I don't see how a properly designed FMIC could not make more power on our motor with the stock turbo.--with tuning to eliminate fuel cut