The latest addition to the A'PEX digital revolution line up is the V-TEC AFC II. Since Honda V-TEC engines are already well tuned from the factory, extracting more power requires precise fuel enrichment and V-TEC engagement control. A'PEX introduces the world's first Digital fuel controller that allows precise fuel enrichment and V-TEC engagement control. Fuel control is adjusted by throttle position and there are even adjustment parameters available for both low and high camshaft lobes. This is what is required to change V-TEC engagement points without damaging your engine.