It's definately possible, but wouldn't be safe with the stock blower and engine management like they said. I'm the stock stuff can be upgraded to handle 400 whp, the blower could be ported, as could be the heads.I'm sure bigger valves, with a multi angle valve job (if amg didnt already do it) would help, headers, custom intake manifolds.... pretty much increase the boost and make the engine breathe easier. Then its a matter of what the drivetrain can hold. Then if you want to go nuts, a little more compression and/or boost with some racing fuel (and no cats) with a bored and/or stroked motor. Then its a question of how much the block can hold. If I didnt have a mustang that costs 1/3 to mod and will make 3x the power, I would be doing the n/a tricks to my motor, but I probably would have bought an earlier base model, and wouldn't drive it every day.