The Cosworth High Volume Subaru Intake Manifold is the ideal solution for those looking to increase intake flow beyond the limitations of the stock STI intake manifold. This high-volume cast aluminum manifold features a superior flow design and the excellent build quality you would expect from Cosworth. We have experienced gains on customer cars of up to 30whp over the stock manifold on a rotated GT35R turbo setup around the 450whp mark with other supporting mods.

This manifold is specifically designed to work with rotated turbo setups with front-mounted intercooler setups. Serious modification would be required to fit this part with a top-mounted intercooler or a stock location turbo (although we have installed this manifold with stock location turbos and can provide these modifications in the house).

Comes with a blue anodized vacuum block pictured in the second image, not silver as pictured in the first image.

• Large, tapered runners with radius inlets
• Tuned plenum volume and runner length/taper
• Integral vacuum manifold for connection of brake booster, boost gauge, MAP sensor, boost controller, etc.
• Will work with standard or forward mount electronic throttle body configurations
• Stock throttle body location for compatibility with most aftermarket FMIC kits
• Designed for high HP, high RPM applications
• Flows over 300CFM per runner (tested)
• High-Quality Raw Aluminum Casting
• Billet Aluminum Vacuum Block (Cosworth Blue Anodized)
• For use with drive-by-wire throttle bodies only!

Fits 2004-2014 STI models and 2006-2007 WRX models. Can fit other turbo Subaru models with additional vehicle modifications.