ECU

BMW_E39_523i_1997_Benzin___125KWKW_Bosch__Siemens_0060041010000_C7C7.Stage1 Ready to install with KESSV2 or MPPS, 20% power increase, +25hp

BMW_E39_523i_1998_Benzin___125KWKW_Bosch_1429861_Siemens__000115852_AA30.Stage1 Ready to install with KESSV2 or MPPS, 20% power increase, +25hp

BMW_E39_523i_1998_Benzin___125KWKW_Bosch_E600_7526753_01100CA010000_748E.Stage1 Ready to install with KESSV2 or MPPS, 20% power increase, +25hp

BMW_E39_523i_1999_Benzin___125KWKW_Bosch_5WK9037_42990624181_01100C6010000_57D6.Stage1 Ready to install with KESSV2 or MPPS, 20% power increase, +25hp

BMW_E39_523i_1999_Benzin___125KWKW_Siemens_5WK9037_Siemens__7500255_C4EF.Stage1 Ready to install with KESSV2 or MPPS, 20% power increase, +25hp

BMW_E39_523i_2000_Benzin___125KWKW_Bosch_E300_7500255_01100C6010000_728A.Stage1 Ready to install with KESSV2 or MPPS, 20% power increase, +25hp

BMW_E39_523i_2004____125KWKW_Siemens__Siemens_0060041010000_C802.Stage1 Ready to install with KESSV2 or MPPS, 20% power increase, +25hp

BMW_E39_523i_2004_Benzin___125KWKW_Siemens__Siemens_0060041010000_BE50.Stage1 Ready to install with KESSV2 or MPPS, 20% power increase, +25hp

BMW_E39_523i__Benzin___125KWKW_Bosch_5WK_90322_Siemens__0060041010000_B60E.Stage1 Ready to install with KESSV2 or MPPS, 20% power increase, +25hp

BMW_E39_525_D_2002_Turbodiesel___119.9KWKW_Bosch_7789376_0_090799_14_351761_2E5F.Stage1 Ready to install with KESSV2 or MPPS, 20% power increase, +25hp

BMW_E39_525_D_2002_Turbodiesel___119.9KWKW_Bosch_7789376_0_090799_14_351761_FF99.Stage1 Ready to install with KESSV2 or MPPS, 20% power increase, +25hp

BMW_E39_525D_2.0_Turbodiesel___119.9KWKW_Bosch_0281010314_7789376__351761_4C30.Stage1 Ready to install with KESSV2 or MPPS, 20% power increase, +25hp