Panning two guitars is standard procedure for many producers. There are a few variations on the theme, one that gives the guitar sound more than just width.
Guest Post from Songwriting: Get Your Black Belt In Music & Lyrics
A Good Old Hard Rock Trick
When you take two identical power chord guitars and pan them left and right, you get a fuller, broader sound. But why not seize the opportunity to fatten up the bottom end by letting one of the guitars play “upside down”? Take the top note of the power chord and lower it an octave. Now that guitar is playing fourths instead of fifths. By the way — this trick works just as well in pop.
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