MB V8 Engines (M273)

Normally Aspirated

NOTE: In order for us to upgrade the ECU, you must remove it from the car and send it to us.


ME 9.7
Performance optimization of 500/550 V8 models with a Kleemann ECU Upgrade refines the power delivery characteristics and increases the power up to 405 hp and 575 Nm.

As a standard in Kleemann software, the V-MAX limitation has been disabled.

As an option rear O2 sensor detection can be removed for race cat or cat free ue.