I've relocated my DV for a fraction off the forge kit, benefits are very minute.
Basically when you dump air on the standard DV setup, you recirculate air after the turbo (this air is warmed up due to the turbo). With the relocation kit the DV dumps air after the IC (intercooler) which has been chilled down. So it only benefits you for that brief second and nothing else, plus the density off air that you gained is hardly worthy off being called beneficial. In theory it works, but what you gain is so small for that price.