(NCP10/13) Air Flow Meter - Any option to increase size with standard ECU

[speedworxs]

While it may be similar, on the mr2 groups they do what is called the MAF mod. On the 1zz (which uses almost the exact same system as the 1nz) they space the MAF a 1/4" higher to trick the engine to readjust ignition timing and fuel. That was on a slightly larger intake pipe, but I imagine you could experiment with it ... Ps, I'm not responsible