DI and FI aren't incompatable. Our high compression ratio does limit our total boost compared to something like a mazda speed 3, but we also have larger displacement to start with. The ECU is different, but it is programable. It seems to me making power isn't the problem any more, it's getting the power to the ground (especially on the A6).
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EFR Twin Turbo LFX-GPI Tune-ZL1 fuel pump-10:1 CR forged pistons-3.45 gear-Meth Injection-BMR Trailing Arms, Bushings & Sway Bars-CircleD 4000 Stall-GPI Fuel Enrichment System
647 RWHP & 726 RWTQ @18.5 psi on 93 Octane (locked converter)
1/8 mile -- 7.158 @ 102.10 (20psi); old build