If you are in the market for a performance software for your e46 M3, consider the W.A.R. Flash Tune System. The OBD 2 ECUs found in BMW cars from 1996 to today no longer have removable chips. Tuners must "flash" the ECU via the OBD port in order to write the new software to the computers internal memory chip. The W.A.R. FTS (Flash Tune System) allows you to flash your ECU in the comfort of your own garage. It eliminates the need to send your ECU to us for the flashing process.

Steming from our OBD1 W.A.R. Chip (which stands for “Write and Remap”) The W.A.R. Flash Tune System offers ease and support for tuning OBD2 cars for a wide range of applications. Working together with RK Tunes, we are proud to offer this system which will grow more features and benefits over time.

For the S54 Engine we offer both MAF based and MAF-Less (Alpha-N) calibrations. On top of that, we can turn off the Secondary Air pump, Rear O2 Sensors and/or remove the Cat warm up routine that many people don't like or may not need if the catalytic converters are removed.

BONUS INCLUDED: The W.A.R. FTS includes a bonus ECU Diagnotic Trouble Code (DTC) reading software. This allows you to scan your ECU for error codes to diagnose any problems as well as reset the Check engine light.

How it works:

Step 1: After purchasing, you receive a W.A.R. Flash Tune System cable in the mail to read out your stock ECU.

Step 2: Email the file that the W.A.R. Flash Tune System reads out to the email address indicated in the instructions

Step 3: We email you back a tune for your applications and specific ECU

Step 4: Use the W.A.R. Flash Tune System to write your new tune to your ECU.