budget y pipe came in the mail today, hopefully installing it today, anyone know if its bad to install it in winter, seein that emmissions are bad at initial startup, meaning, is it better to install in summer then car gets used to it, or no difference what season its installed, i just dont want no 02 sensor stuff hapenning cuz of the sudden change

 

you sure it wasn't yesterday and you didn't see it?

doesn't matter when you install it..