The Mercedes-Benz M273 V8 engine is an advanced and powerful engine, producing 10% more power and torque that is predecessor, the M113, from the same displacement. The same technology that lets the factory produce more power from the 5.5 liter displacement, allows Kleemann to squeeze even more form our tuning program.

The Kleemann tuning program for the V8 M273 consists of an ECU upgrade, high flow air filters, stainless steel tubular exhaust headers and super sport camshafts.

500/550 V8 (M273)

450: Output lower, from above.

500/550-K1: A custom made ECU upgrade. Up to 410 HP and 580 Nm (429 lb-ft) of torque.

500/550-K2: K1 + stainless steel tubular exhaust headers and downpipes (sport catalysts available for some models). Up to 435 HP and 600 Nm (444 lb-ft) of torque

500/550-K3: K2 + super sport camshafts. Up to 460 HP and 630 Nm (466 lb-ft) of torque.