7,800 is the factory,
mine had an auto box now a manual box, hasnt ever changed....i have it chiped and its still the same only the speed limited was put a fair bit higher.
it shouldnt have a problem reving that high even on stock turbo....just that you wont get stuff all power up there, so its kinda pointless to rev it that high. if you have an aftermarket turbo then go for it.