Many Cougar owners argue that this is one of the modifications that will yield significant HP gains by itself. These headers are made for Duratec V6 2.5L engines and come with y-pipes. Depending on the production year of your car, you may need MIL eliminators in order to have your car run properly after install.
The powder coating seems to fade/scratch REALLY easy... but otherwise a wonderful upgrade from the stock exhaust manifold/pre-cats.
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