July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

MERCEDES-BENZ 250 & 280S Engine Modification: Description

Mercedes-Benz 250/8 and 280 S/8 engine modification system consists of; RPM switch, relay box, two-way valve, three-way valve, front and rear choke covers and three temperature switches. One temperature switch opens at 17°C (63°F), the second at 100°C (212°F) and the third at 65°C (149°F).