If you are looking for 100 Nm increase in torque you will end up above 1200$ I guess.
I have an AC Schnitzer performance upgrade
M6 with engine S63B44T0
and 412 kW / 560 hp standard performance
performance: 456 kW / 620 hp
torque standard: 680Nm
torque AC Schnitzer: 790Nm
specifications only when using at least 98 octane fuel
10.000€ +
