Not real informed on what Garrett turbo model that is but it looks to me like the low end is a bit 'soft'. i.e. the upgraded, larger turbos have some pronounced lag off the line. Also not helped by the gigantic 37" Toyos and 20" wheels that he said were 110 pounds per corner. That said, the in-car video sure did not look like that truck was making the power that the dyno claimed. Something is off.