Equal Length Race Header

Constructed from durable 304 stainless steel, this header features equal length runners and 1.65-inch diameter pipes, along with a 2-bolt style up-pipe, all designed to optimize exhaust flow and enhance engine performance. This race header aims to deliver noticeable power gains by reducing exhaust restrictions. Its equal length design also contributes to a more balanced exhaust pulse, which can improve engine response and contribute to a unique exhaust note. The 304 stainless steel construction ensures longevity and resistance to corrosion, making it a robust addition to your vehicle's exhaust system. Installation compatibility requires specific attention: this header fits 2004-2021 Subaru WRX STi, 2006-2014 Subaru Impreza WRX, and 2002-2005 Subaru Impreza WRX models. Crucially, it MUST have the 2.5L oil pan to ensure proper fitment. Replacing the stock cast manifold with this equal length stainless steel header not only offers power benefits but also provides a cleaner, more appealing look in the engine bay.