4age 16v oem ecu rev limiter research

[ditn]

Im trying to find out if there are ecus with a higher rev limiter
If i find one that would greatly help me since i need to use the original ecu.
So far i have find out

Usa maf/afm ecus have lower rev limit 7500/7600 (rumor or true)
Someone said to me early zenki belgium car didnt stop at 8000rpm
Anotherbelgium zenki one stopped at 8000 rpm

Confirmed
89661-12040 zenki belgium map ecu rev limit 7800 rpm

I would need ecu number and rev limit and map or maf/afm

Any help would be appriciated.
Trying to make the best grp n rallycar possible