The Greddy Airnex Suction Kit for the Nissan R32 Skyline GT-R is designed for maximizing the performance of the stock frame twin turbos on the RB26DETT engine. 

Multiple options are available with this intake kit. 

Stock Airflow Meters - 11920230
Z32 80mm Airflow Meters - 11920231
Airflow Meter Elimination - 11920232