Keep in mind that the US SQ5 is a V6T, and that is what the TAG Motorsports cars were based on. Mines a V6 Bi-Turbo TDI, per UK spec with 650nm at stock.
The tunes available for this particular motor are not the same, and are quite expensive for the gains you get. However the times for the V6T, US spec SQ5 is quite different. A simple visit to APR is all you need. Not the same with mine unfortunately, yet.