I'm looking at the "exploded" drawing of the 4R Zagato in the Quattruotte magazine that debuted the 4R Zagato. It shows the exhaust system front section with the collector and expansion box and the muffler just in front of the rear axle. Just like all the rest of the 1300/1600 Alfa's I have owned. What I can't see is if this car has a third box or rear resonator between the rear axle and the rear bumper. Anyone know for sure? I can't tell from this drawing or the original press photos.