BMW 3 serie · E90/E91 - 2005 - 2010

320si 173hp Stage 1 tuning

The BMW 3 serie 320si 173hp produces 173 hp and 200 Nm as standard. The YASTUNING Stage 1 remap file takes it to 185 hp and 220 Nm, a gain of +12 hp and +20 Nm. Engine code N45B20A. ECU: Bosch MEV946. The file is checksum-corrected and reviewed by an experienced calibrator within factory component tolerances.

Power
173 hp 185 hp +12 hp
Torque
200 Nm 220 Nm +20 Nm

Engine specifications

Engine code
N45B20A
Fuel
Petrol
Displacement
1995 cc
Compression
12.0 : 1
Bore × Stroke
84.0 X 90.0 mm
ECU
Bosch MEV946
Method
Chiptuning

Available options

Software options we can include with the BMW 3 serie 320si 173hp file on request.

Supported read methods

Tools known to read and write this ECU. Send the stock file from any of them and we return the tuned file in the same format.