Question: how many days ahead can you make brisket?
Answer: After that point, you're simply getting the meat cooked through. DO AHEAD: Brisket is best shortly off the grill, but you can still get good results smoking it up to 3 days ahead. Let cool for an hour before wrapping in foil and chilling. To serve, reheat meat, still wrapped, in a 325°F oven until warmed through.