Exhaust manifold designed for: FORD PROBE II 4Cyl Exhaust manifold from TurboWorks, made of 100% stainless steel. Guaranteed power increase up to 10%. When performing engine tuning, the exhaust manifold should be replaced at the very beginning, when performing engine tuning, exhaust manifold should be replaced at the very beginning, because the exhaust gases, extruded from the Cylinder, are sent to the exhaust manifold, which is part of the engine body, then are directed to the first section of the exhaust pipe, and then to the silencer, or several serial positions mufflers and then to the outlet part of the exhaust pipe. The set includes a set of gaskets. 24 months guarantee.