the mass produced items fatigue and leak

All the metal components on Wisefab Nissan Skyline R33 front suspension are from high strength steel

even with huge boost and flow

Dependent on rim width and ET

BOV Race Port Gen-V Supercharger - Black Aksler the mass produced items fatigueThe Race Port is famous for being an amazingly small and light BOV for supercharged competition level engines. Featuring our unique collar design and internal flow structures, it is 50% lighter and 25% smaller than the competition while flowing 330 CFM making it the highest flowing BOV of its type on the market. The supercharger specific Race Port features a soft spring so it can stay open at idle, when the supercharger is still producing boost.