I just bought a 2013 zx14r with 1k miles . It has full Brock's , PC5 , and a ecu unleashed. I bought the bike Tuesday from a guy in San Antonio ( I live in Oklahoma) and when I received the bike and took it for a spin I noticed that from 1-5k rpms it Boggs really bad IN EVERY GEAR. It's actually even worse in higher gears. Once it's passed those rpms it runs like it should. The guy I bought it from said he just dealt with the issue. I have a buddy who has a dyno and we just finished up on it for the evening. The air/fuel ratio was spot on. But it still does it. Does anybody know what it could be ? Maybe the company that ecu flashed the ecu did something wrong ? Emissions problem ? We are stumped. Thanks.