PTG X M177.1 Exhaust Manifold Set

The PTG X-Manifold allows M177.1 owners to use larger M177.2 turbos, enhancing airflow and boost capacity for high-performance builds.

• The description claims the manifold enables running PTG or factory M177.2 turbos on M177.1 engines.
• The description claims a 59% flow increase with a replacement M177.1 manifold and a 74.5% increase with the PTG-X manifold system.