3cyl v2 Exhaust

Prototype #2
Since some improvements have been done to the cylinder head ,the first prototype exhaust system needed some updates (see three cylinder exhaust system, first prototype).

Ugrades
Exhaust ports were designed to shape an oval exit which allows better cooling of the engine and keeps the exhaust system production costs low. New engine head had also an increase of the flow rate, so the exhaust system had to meet the new requirements.