Skidnation blanking set for the exhaust gas recirculation (EGR) connections in the intake manifold. This can be used if, for example, if a exhaust manifold is used that has no connection for exhaust gas recirculation. For use with a standard exhaust manifold, a plug is required for the connection in the exhaust manifold. The original seals of the connections in the intake manifold can usually be reused. In OEM ECU´s, error codes of the engine control unit can occur.