They do indeed, practically everything on the GP fits the Evo - as it's only the lights etc that are different! My coilovers were to fit the GP but they fit perfectly!
Out of interest, does anyone know what the difference is between the 'normal' suspension (as listed in ePER I assume ?) and the 'sports' (stiffer) suspension I got with my 2012 GBT ?
My model ain't listed on ePER so I was unable to see what actual parts were different ?