Upgrade stages up to 540 Hp for the 5.4 Compressor engine found in CLS55 AMG.

Stage 1 upgrade, is presented below.

Stock engine specs:    

Capacity: 5439cc                           
bore x stroke: 97 x 92 (mm)
Compression ratio: 9:1
Revlimit: 6500 rpm

Power: 476hp
Torque: 700Nm

Stage 1: 

Engine upgrades:

-Stage 1 Software upgrade

Engine performance:

Power: 540hp
Torque: 820Nm

Software upgrades:

Use of 95/100 octane fuel is mandatory.