Invidia Equal Length Big Piping Exhaust Manifold - 2008-2018 Subaru STI
The Invidia HS05SW1HDP Equal Length Big Piping Exhaust Manifold is made for those of you looking to make big horsepower and big torque numbers. This is a one-piece design that has been fabricated from SUS 304 stainless steel, and the flanges feature CNC machined to hinder warping, and to ensure for a precision fitment.
This header has a pair of O2 provisions for installation of the factory oxygen sensor, as well as an option to install an aftermarket wideband gauge. New exhaust manifold studs will be included to help for installation.