Seal up your exhaust manifold with one of these gaskets to prevent exhaust gas leakage (leaks will drop engine performance).
Some racers don’t bother with exhaust gaskets and instead install an RTV silicone as a substitute, we prefer to use both on our own engines and we have found that thin flange extractors can pickup horsepower gains due to improved sealing properties.
One piece units to make installation simple with separated extractor setups.
Sold each.