The Audi S1 Eventuri intake has been developed to provide the most efficient and direct airflow path to the turbo. By replacing the OEM airbox with Eventuri's Patent Pending Venturi housing they have ensured that the airlfow remains as laminar as possible. Furthermore, the addition of a true cold air feed by adding a scoop to the front grill results in the lowest possible inlet air temperature. The result is an optimised intake system which delivers noticeable performance gains consistently.
The Eventuri Difference
The Audi S1 system uses Eventuri's Patent Pending Carbon fibre Housing which provides an aerodynamically efficient airflow path from the filter to the turbo tube. Not just another cone filter with a heat shield but a unique design which allows airflow to remain laminar and thus improve the turbo efficiency.
The standard airbox is cuboid in shape which gives rise to turbulence and increases the drag on the turbo as a result. The transition from the rectangular air filter to the round turbo inlet gives rise to inefficiencies in the flow path which are addressed with their Venturi housing system.
The following dyno graphs show the before and after results on a Golf 7 R (same engine as the Audi S1) which already had a remap. So both the stock airbox and the Eventuri were tested with the same remap in place. All tests were carried out back to back on the same day with the BONNET CLOSED ON ALL OCCASIONS.