Selling my Bavauto performance chip for e30 325i, 173 ecu, I no longer need it due to its advanced timing, here's their ad description:
Our performance chip will make your BMW instantly faster and quicker. With this Bavarian Autosport Performance Chip, you'll increase your peak horsepower from 167 (stock) to 181, your peak torque from 164 to 177, as well as increasing your rev limit to 6900 RPMs.
Part Number Description Price
BAV.M20.500 Bavarian Autosport Performance Chip - for 173, 380, 524, 525, 526 ECUs
My price $100 shipped via UPS ground with tracking number.
2.8L M20 Stroker