The manifold has been hand crafted from high grade stainless steel pipe work and flanges.
It incorporates fantastic attention to detail with smooth flowing joining faces thus removing any kind of gas flow restriction.
This results in an increase in torque, engine response and a smoother delivery of power, maximising the potential from your Impreza engine.
The triple layer expansion joint allows the manifold to adjust with the change in engine temperatures, guaranteeing excellent reliability and longevity.
Each manifold comes with a robust, 2 bolt flange mounted up-pipe assembly.
Also included is the slip jointed up pipe. 
The up pipe bore size has been optimised to improve turbo spool characteristics.