Hi, Selling my AEM EMS4 ECU (No need it anymore as moved away from SR20); Also with the ECU I'll Add Innovate MTX-L which works with LSU4.9 (Wideband); You can connect wideband to ECU to have corrections made and see proper AFR. Great swap for SR20 (removing MAF, adding smart coils) having full management of the engine. AEM and MTXL(w. LSU4.9) is in working condition. 550Eur + shipping (Europe); {} {} {} {} {} {}