hhow hard is it to install a header? Is it just pretty much bolt on? Or do I need to worry about anything else?

 

Your old exhaust bolts and 02 sensor will probably be a PITA to remove, soak them with penetrating fluid (like PB Blaster) ahead of time. Remember to use new gaskets too, also some of the hardware may need to be replaced.

 

Will do, I plan on getting some new bolts anyways because all of them but 1 is rusted, but thanks for help