fishs2000

So wouldnt the J's racing N1 ECU be a better investment then? Less time and hassle? or does that have to be tuned as well? Are gains similar?

rdv5434391

-- isn't the HONDATA the defacto standard - keeps car under the honda umbrella of functionality, meaning you will get thru emissions, and "things work" like all your guages, idle, and cold start

-- by the way, i have been hearing, from more than 1 tuner, that the vafc's out there (notably the apexi's) will only fool the honda ecu for so long, and eventually you need a retune as the honda ecu relearns the "correct settings"(whatever that means) - does anyone know if that is a valid statement ?

neeman77

Only if you do partial throttle tuning will the ECU compensate, with WOT tuning the ecu simply relies on a closed loop map which is in turn altered by the VAFC.

duanet85

made specifically for the j's intake header and exhaust