RCM Subaru Impreza Twin Scroll Stainless Steel Exhaust Manifold

RCM Twin Scroll Stainless Steel Headers offer increased power and torque with improvel turbo spool.

Our exhaust manifolds not only offer significant performance gains across a range of areas but are also manufactured to the highest of standards. Unlike many other performance manifolds our headers are produced with a "three bolt hole" flange between the manifold and the up pipe to ensure a long lasting, leak free seal. Manufactured with slip joints in the centre of the manifold also allows for expansion under temperature changes so as not to place unwanted stress on welds and removing the need for un-reliable flexi joints.

Key Features
• Dramatically improves the ability of the sump to hold oil around the oil pick up pipe, improving reliability and limiting any chance of engine failure when driven under hard cornering.

• Improved spooling characteristics.

• Improved BHP.

• Improved torque.

• Significant weight reduction when compared to the OE manifold.

• Improves exhaust gas flow.
Fits:

Subaru Impreza JDM STi 2003 onwards twin scroll models. (contact us if in doubt and we can confirm by VIN)