My car came with 3 ecu chips, stock b16, a 5800 chip and a 4400 chip. Both chips control which rpm vtec activates and ramps up the fuel. I have been running the 5800 since ive owned it. Today after a valve cover and spark plug change i decided to brave the 4400. I can now spin the tires in first gear ( while driving even from a roll) and i have a noticeable power gain and two tone vtec lol, which feels and sounds weird but soo cool. I mean im in vtec for almost 5000 rpm. Is this harmful to the engine or anything else to be in vtec that long or that much?