Racers Edge RCE10170B .12/2.1Cc Round Manifold Seal Blue
This is a set of replacement manifold seals for 2.1cc/.12 size engines (these also fit .15 and .18 engines). This is the gasket that goes over the exhaust port on rear exhaust engines and seals the manifold header to the engine. This gasket is also used for one piece tuned pipe assemblies to seal the connection between the manifold header and the tuned pipe. If this gasket is leaking either around the exhaust port or the tuned pipe connection, it will make the engine behave erratically.
