Im Burnin it up

[gsx&gsxr]

i know that removing the emissions can cause a rough idle but could the it cause my car to over heat because as far s i can tell i have done everything new thermostat water pump headgasket fluids but still running down the road i still over heat and i just cant figure out why

i just got my head back from headwerks with a full gasket kit and everything no change in my problem so im just out of ideas