986 Lovers; does anyone know when and why Porsche started putting 2 resonance tubes on the intake of the 2.7 engine. Most of the pics I see of the 2.7 have 1 resonance tube. Mine has 2. Even the Bently Manual shows only 1 tube. Perhaps the 2.5 has 1 and the 2.7 has 2. I'm confused when I see pics of the 2.7 with 1 tube.
