Nitrous Outlet 4150 Flange Billet Pressure Relief Burst Panel. Fits any 4150 Style Flange, Carb or EFI. 4150 Flange. Nitrous Outlet Part Number 00-49000. 6061 Billet aluminum plate, Spring loaded panels, Sealed with a captured grove o-ring, Works as 1" Spacer as well.
