The E Model Exhaust Manifold for Class 8 engines replaces stock exhaust manifolds on Caterpillar models 3406E, model years 1994-2000, and C15, 1999-2004. The manifold provides 0.3-0.4 per gallon improvement in fuel economy and adds 30 additional horsepower to the rear wheels. The manifold is finished with a ceramic coating.
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