No. The 4 Star 40 comes with the firewall undrilled.

Depending upon the chosen tank and venting the most common options on the 4 Star 40 are individual holes for each feed line through the firewall or a single larger hole made with a holesaw. As best I recall the the plan depicts an 8oz Sullivan slant single vent setup with both lines protruding through small holes in the fueselage. The latter works well, and when snugly fit prevents the ingress of fuel residue into the fuselage. The instruction manual is pretty scant on information about Four Star fuel tank setup. For flyers haven't either fitted a fuel tank before or perhaps only one such as a "follow the bouncing ball type" fitment like the LT-40's, its best to refer to the information provided in the accompanying "SIG Basics of R/C" booklet which has some good info on fuel tank selection, venting types, mounting and fuel levels etc.