Diftech N15 Pulsar Throttle Body Adapter Plates

?DIF 10007 throttle body plates are for Nissan SR20det applications. Users can easily increase the bore size of their intake manifold from 60mm to 70mm.  The inlet bore size can become the stopping point for increase in power when larger turbos are used. 

It required that you port match the throttle body adapter to the manifold so insure a 70mm size throughout the intake.