Im new to this and I have never tuned. what exactly do they do...and how do they do it.....and where should I go to get it tuned. also lets just say I chip my ecu on my own....i have read some people have done this,,,, is this recommended..... and if so can I chip it at home and then take it to get tuned at a place that does tuning. any help appreciated.....for now I only have a hatch 94 with 15in acura rims, headers, 2.5in catback,msd ignition,cold air intake,stage 3 clutch,and some apexi wires,light flywheel, on a 99 D16y8 engine it has some power but I know it can do alittle better at least until I blow it then Ill get a dohc. any advice appreciated.