Even if it is the whale of the Porsche family, the Panamera is certainly no slouch in the go-department but if you’re just like every other car nut out there, then...
I've tried 550cc injectors on RB20det (that means 6 units) with SAFC 1 blue screen, the car can still run, but it's too damn rich on fuel, even if everything is set to -50% and even with fuel regulator installed...