Car Exhaust Head CorrosionCar exhaust heads corrode quite easily.
The exhaust heads on your car undergo extreme temperature, high gas flow rates, and moisture buildup. All of these conditions lead to oxidation, or corrosion of the metal.
Spraying a little bit of Corrosion Block on the heads before installation will results in extended head life and less deterioration.
Corrosion like this leaves the surface rough and uneven, which will cause turbulence and unwanted backpressure in your exhaust.