How to Install an STi Header

An STi header, or the exhaust manifold, serves as a delivery system. The STi header/exhaust manifold collects the gas that’s produced by the engine and releases it out into the surrounding atmosphere via the exhaust pipe.

It’s vital that you change out your current STi header and get an aftermarket STi header for your STi or WRX. When shopping for an aftermarket STi header, ensure that it’s heat-resistant and is stainless steel. Refer to the video below for instructions on how to install an STi header on your STi/WRX.

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