Seems like people are still confused about da chip...

An aftermarket ECU is like a "one tune fits all" deal. It's like tuning a stock type-R on a dyno, programming it's ecu to make max power for that particular car, and selling that ecu to you for your ls or gsr. Obviously it's not nearly as effective as tuning your own car yourself, but it's a cheap way to get quick power if you only have a few mods. If I'm wrong please correct me

Shingo