SKU: BEWG-FITTING-UPGRADE-KIT | UPC: 799928864794
Cobb 1/4″ EWG Fitting Upgrade Kit for 3-Port EBCS Subaru WRX STI 2002-2021
The Cobb EWG-FITTING-UPGRADE-KIT delivers 1/4″ NPT to 1/4″ barb fittings, seals, and vacuum caps to upgrade Cobb 3-Port EBCS for external wastegates on Subaru WRX and STI models 2002-2021. It replaces factory 4mm fittings for proper vacuum routing with 1/4″ lines, preventing leaks that disrupt boost control in high-boost turbo setups. This ensures reliable performance for tuned engines with external wastegates.
Key Features
- 1/4″ Hose Compatibility: Matches external wastegate vacuum lines for direct connection without adapters
- Brass Fittings with O-Rings: NPT threads seal tightly to resist vibration and heat in turbo environments
- Complete Kit Contents: Two 1/4″ NPT to barb fittings, O-ring seals, and vacuum caps for full installation
- Leak-Proof Design: Maintains vacuum integrity for consistent boost response across RPM range
- USA-Made Precision: Machined brass and aluminum components built for durability in performance applications
Product Notes
- Required for Cobb 3-Port EBCS setups using external wastegates with 1/4″ vacuum lines
- Part Number EWG-FITTING-UPGRADE-KIT, MPN EWG-FITTING-UPGRADE-KIT
- In stock items ship same or next business day via ground carrier
Installation Notes
- Professional installation recommended.
- Installation Time: 10-20 minutes; unscrew factory 4mm fittings and install 1/4″ barbs with O-rings
- Compatible with all Cobb 3-Port EBCS units; torque to 10-15 ft-lbs
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2002-2007 | Subaru | Impreza | WRX |
| 2008-2014 | Subaru | WRX | All |
| 2015-2021 | Subaru | WRX | All |
| 2004-2009 | Subaru | Impreza WRX STI | All |
| 2010-2014 | Subaru | WRX STI | All |
| 2015-2021 | Subaru | WRX STI | All |
| 2013-2021 | Subaru | BRZ | All |
Why Choose Cobb?
- World leader in turbocharged performance tuning
- Precision-engineered components for reliable boost control
- Made in the USA trusted by professional tuners
Frequently Asked Questions
- Q: Does this fit all Cobb 3-Port EBCS on WRX/STI?
A: Yes, designed for all versions used with 1/4″ external wastegate lines on 2002-2021 Subaru models. - Q: What material are the fittings?
A: Brass barbs with O-ring sealed NPT threads and aluminum caps for corrosion resistance. - Q: What is the warranty and install time?
A: 1-Year Limited Warranty; installs in 10-20 minutes by replacing factory fittings.
Shipping & Handling
- Method: UPS/FedEx Ground
- Availability: In stock – ships same or next business day
- Packaging: Official Cobb Tuning retail packaging, box dimensions 5″ x 3″ x 1″
- Weight: 0.1 lbs
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