CONSTRUCTION
TWCs are provided in the exhaust manifold of each bank and also in the front exhaust pipe.
An exhaust manifold with an integrated TWC is used for warm-up of the TWC.
An ultra thin-wall, high-cell density, ceramic type TWC is used for the exhaust manifold and a thin-wall, ceramic type TWC is used for the front exhaust pipe.
This TWC enables improved exhaust emissions by optimizing the cell density and the wall thickness.
| *1 | TWC | - | - |