M113 Kompressor Stage 1 EVOTECH upgrade

EVOTECH Stage 1 upgrades consist of:
a) 178 mm or 168 mm pulley kit

The picture below is the 178 mm Evotech pulley kit. (does not include crankshaft bolt)



b) EVOTECH custom ECU software upgrade

Here's the dyno of one of Evotech Stage 1 Mercedes E55 AMG.



Performance gain (on average)
45 rwhp
60 rwtq

Please do remember the octane of the fuel used does affect the performance gain.