D16y7 i think there is a check light at the ecu on passanger side you can have a look ,see if it blinks for error code...if not mistaken yours is zc engine..if nothing comes out there is no need to adjust...unless you tangan gatal... :)
I am looking around for a tuner mapping my bnr34. with F con V pro.
As i know, in malaysia. only few tuner can do it. GT Auto Toby Lee, Mr jun furukawa, Links Power Mr Kee.