hey guys,
to answer your question and my personal 2cent, the stock ecu for your stock just dropped engine should be running good, unless you mod alot and tune here and there and with some heavy weapon in ya engine bay, then only you get a A) standalone engine management(microtech, motech, autronic, aem, haltech) and for those we are looking at 3500krm till 15krm, some including tuning some doesnt, B) piggy bags like, safc+itc, smt6, unichip and so on. C) re-chip, those like the j5 ecu is actually a re-chip and it's not consider a full standalone management, which freedom to tune is the key, mines chip and goes on which are pre tuned. my 2cents is that since u are not gonna do a full blown mod with internal, extra big turbine and super high cams, forget about the management when you are running stock, unless you are that loaded, i would suggest you to go for evo's engine, value for money and power, and product to tune your engine.
and btw, gsr halfcut is a very common halfcut, almost every halfcut shop have it, if you need recommendation, and open to the best halfcut u can find, try messaging this fellow forummer, Yee, he got some good reliable sources.
speezone, do confirm the price with us. thanx. how good is the local made gasket?