yea can do it a few ways, one is set it up for a average summer day and then use the ect and iat adders to remove for a hotter day and add in for colder day, just keep in mind that the IAT in summer and winter will change greatly but the manifold temps will only shift a little in comparison especially with a PD blower, u usually dont have to be anywhere as safe as a factory tune so u can play with it a bit
