659910 Spring for Manifold (2)

Replacement long exhaust manifold springs for the FX engines attach the tuned manifold to the engine exhaust port. Set of 2.

These springs will generally weaken over time due to the amount of heat generated by the engine. We recommend replacing these springs if they become loose (you should also replace the exhaust port gasket at the same time). If your muffler is leaking around the manifold/exhaust connection, the engine may run erratically.