GENUINE OE GOOD USED & TESTED MG ZR ROVER 25 1.8 VVC ENGINE MANAGEMENT ECU UNIT FITS MODELS 1999 - 2006 , SECURITY CODE NEEDS TO BE PROGRAMMED IN BEFORE VEHICLE WILL RUN TUNE AND DOWN LOAD ADVISED BUT NOT ESSENTIAL.ANY QUESTIONS MESSAGE OR CALL 0121 505 6955, THANK YOU FOR LOOKING.