I look at the Brabus website and the Startech is actually $13 gee which includes mods in the exterior, interior and engine performance to 300 HP better than the Renntech 291 HP. The upgrade is not bad at all rather than trade your XF for $8-10 gran less then spend $ 25 gran more to buy an SRT-6. I think Startech ( Brabus ) is the mod we've been looking for regarding speed and more looks

I might go for it next year!