477 HP Stage 1 Software | M340i/540i/740i/840i/Z4 M40i

Calculated Flywheel Power:

OEM Stock:  420HP / 463TQ
Tuned 93 Octane:    477HP / 516TQ

Measured Wheel Power:

OEM Stock   345WHP / 380WTQ
Tuned 93 Octane:   391WHP / 423WTQ

• Exhaust overrun option