Hello everyone, new to this forum. I just purchased a 96 b5 a4 1.8t with quattro and 5 speed manuel. I live in the United Arab Emirates, plan for the car is to go with a big turbo most likely a 3071 or 3076. However the ECU seems untunable and the more i read the more confused i become. Ive posted on vwvortex and audizine with little info. Seems that in the US they do not have the no letter ecu or 'box ecu' as some call it which i have sitting in my engine bay. What are the solutions other than a a standalone such as lugtronics or a haltech? Ive read about swapping ECU's from other VW's and Audi's in place of this ecu? Would it be very hard to swap in a me7 ecu so that we could run with a wideband even though that would involve swapping the throttle body and gas pedal? How about flashable me5 ecu's so i would have the option of running software such as eurodyne maestro7 so that i could tune my car? Thanks for any help everyone.