COBB EBCS 1/4in EWG Fitting Kit (EWG-FITTING-UPGRADE-KIT) | Subaru WRX 2002-2014 / STI 2004-2021 / Forester XT 2004-2013 / Legacy GT 2005-2012 / Outback XT 2005-2009

The COBB EBCS 1/4in EWG Fitting Kit upgrades the small, 1/8‑inch fittings used in many external wastegate boost control setups to larger, 1/4‑inch fittings. This provides cleaner, faster, and more precise control of the wastegate when using COBB’s electronic boost control systems on turbo cars. The kit includes everything needed to swap to the larger line size boost line, T‑fitting, corrosion‑resistant barbs, and zip ties so you can make the change without hunting for parts.

KEY FEATURES

• Upgrades factory or existing 1/8‑inch fittings to 1/4‑inch fittings for external wastegate setups
• Includes 36 inches of 1/4‑inch silicone boost line, nickel‑plated barb fittings, a low‑profile plastic T‑fitting, and zip ties for tidy routing
• Designed to improve control precision and response for electronic boost control on external wastegates
• Low‑profile fittings allow the controller and lines to fit cleanly even in tight engine‑bay areas
• Useful when running higher‑flow or more demanding wastegate systems where line size matters

TECHNICAL SPECIFICATIONS

• Fitting size: 1/4‑inch barb fittings, nickel plated for corrosion resistance
• Hose: 36 inches of 1/4‑inch silicone boost line included for installation flexibility
• Connector: 1/4‑inch plastic T‑fitting to route lines cleanly and securely
• Application: intended upgrade path for COBB Electronic Boost Control Systems on external wastegates; fits many turbo platforms
• Packaging: full kit includes line, hardware, and zip ties to complete the upgrade in one step

VEHICLE AND PLATFORM FITMENT

• 2002–2014 Subaru Impreza / WRX
• 2004–2021 Subaru STI
• 2004–2013 Subaru Forester XT
• 2005–2012 Subaru Legacy GT
• 2005–2009 Subaru Outback XT
• Also listed for various Mazda and Mitsubishi turbo platforms, plus others where COBB EBCS systems apply

COBB delivers proven, data-driven performance solutions engineered to optimize your Subaru with unmatched precision and reliability.