BMW M3 · E46 - 1998 - 2005

M3 343hp Stage 1 tuning

The BMW M3 M3 343hp produces 343 hp and 365 Nm as standard. The YASTUNING Stage 1 remap file takes it to 365 hp and 390 Nm, a gain of +22 hp and +25 Nm. Engine code 326S4. ECU: Siemens/Continental MSS52, Siemens/Continental MSS54. The file is checksum-corrected and reviewed by an experienced calibrator within factory component tolerances.

Power
343 hp 365 hp +22 hp
Torque
365 Nm 390 Nm +25 Nm

Engine specifications

Engine code
326S4
Fuel
Petrol
Displacement
3246 cc
Compression
11.5 : 1
Bore × Stroke
87.0 X 91.0 mm
ECU
Siemens/Continental MSS52, Siemens/Continental MSS54
Method
Chiptuning

Available options

Software options we can include with the BMW M3 M3 343hp 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.