GSC P-D Subaru EJ205/EJ207/EJ257 Chrome Polished Intake Valve – 37mm Head (+1mm) – Single

SKU: 2014-01 | UPC: GSC2014-01

GSC P-D Subaru EJ205/EJ207/EJ257 Chrome Polished Intake Valve – 37mm Head (+1mm) – Single Fits 1999-2015 Impreza WRX STI

GSC Power-Division chrome polished intake valve delivers a 37mm head diameter (+1mm over stock) for Subaru EJ205 EJ207 and EJ257 engines. It fits 1999-2015 Subaru Impreza WRX STI models plus select Saab 9-2X delivering higher airflow for power gains. The single valve design with advanced stem finishing resists wear in high boost setups.

Key Features

• 37mm Head (+1mm): Increases airflow into cylinders supporting higher RPM power
• Chrome Polished Stem: Transfers heat efficiently to guide and seat reducing friction and wear
• One-Piece Forged Steel: 21-4N stainless construction handles extreme boost and heat cycles
• 7.00mm Stem (6.98mm tip): Direct OEM-spec fit with 113.74mm overall length for drop-in install
• Swirl Polished Head: Smooths flow paths minimizing turbulence for efficient combustion

Product Notes

• Sold individually order 8 for complete EJ20 or EJ25 turbo intake set
• Pair with GSC valve seals for leak-free operation
• Box dimensions 6in x 4in x 1in protects during transit

Installation Notes

• Professional installation recommended.
• Valve length 113.74mm matches stock EJ heads no machining needed
• Compatible with OEM or GSC beehive springs check installed height

This Part Fits

Year	Make	Model	Submodel
1999-2005	Subaru	Impreza	RS
2002-2004	Subaru	Impreza	TS
2002-2014	Subaru	Impreza	WRX
2004-2014	Subaru	Impreza	WRX STI
2005-2011	Subaru	Impreza	Outback Sport
2005	Saab	9-2X	Aero
2006-2011	Subaru	Impreza	2.5i
2009-2010	Subaru	Impreza	2.5 GT
2010-2011	Subaru	Impreza	2.5i Premium
2010-2014	Subaru	Impreza	WRX Limited
2011-2014	Subaru	Impreza	WRX STI Limited
2012-2014	Subaru	Impreza	Premium
2012-2014	Subaru	Impreza	Sport Limited
2012-2014	Subaru	Impreza	Sport Premium
2012-2014	Subaru	Impreza	Base
2012-2014	Subaru	Impreza	Limited
2015	Subaru	WRX STI	Base
2015	Subaru	WRX STI	Launch Edition
2015	Subaru	WRX STI	Limited

Why Choose GSC Power-Division?

• Engineered for motorsport use in WRX STI race programs
• Precision CNC machined for consistent performance
• Backed by real-world testing on dyno and track

Frequently Asked Questions

• Q: Will this valve fit 2004-2014 Subaru Impreza WRX STI EJ257 heads?
  A: Yes direct replacement with 37mm head and 113.74mm length for stock or ported heads
• Q: What finish and material details?
  A: Forged 21-4N stainless steel with chrome polished stem and swirl polished head for flow and heat management
• Q: What about warranty and install?
  A: Lifetime warranty against defects professional install ensures proper spring pressure and sealing

Shipping & Handling

• Method: UPS Ground or USPS Priority
• Availability: In stock – ships same or next business day
• Packaging: Protective sleeve in 6 x 4 x 1 inch box
• Weight: 0.15 lbs