Hey guys hows it going. I own a 1987 toyota mr2 with a 20 valve silver top in it. I would like to remove the afm and air intake system so i can chuck on individual filters on each throttle body. I was wondering if a piggyback ecu would make it possible to remove the afm or do i need to buy a complete aftermarket ECU? Thanks for your help and if anyone has a piggyback, i am very interested to buy.