GSC 2015-8 32mm Super Alloy Exhaust Valves Set of 8 for Subaru EJ Turbo

Vehicle Fitment

• 2002-2014 Subaru WRX (EJ20/EJ205/EJ255)
• 2004-2021 Subaru WRX STI (EJ25/EJ257)
• Subaru Forester XT / Liberty GT - Turbo EJ platforms
• Other turbo EJ engines requiring 32 mm exhaust valves

Features

• Set of 8 Super Alloy exhaust valves from GSC Power-Division
• 32 mm standard head diameter matched to OEM spec
• Super Alloy material engineered for extreme heat and high EGT applications
• Chrome-polished stems for reduced friction and added durability
• Swirl-polished and back-cut heads for improved flow and reduced mass
• Optimized design for high-boost, high-RPM performance builds
• Designed for longevity in performance and racing environments
• Precision manufactured with consistent quality and fitment

Specifications

• Brand: GSC Power-Division
• Part Number: 2015-8
• Valve Type: Exhaust
• Head Diameter: 32 mm (standard)
• Material: Super Alloy (high heat tolerance)
• Quantity: Set of 8 valves
• Compatible with high-temperature turbocharged EJ engines
• Designed to withstand elevated exhaust gas temperatures up to ~2000°F

Included Components

• 1x Set of 8 Super Alloy exhaust valves (32 mm)
• Note: Valve springs, seals, retainers, and keepers are not included

Product Description

The GSC 2015-8 Super Alloy Exhaust Valves from GSC Power-Division are engineered for high-performance Subaru turbocharged EJ20 and EJ25 engines. Built from advanced super alloy materials, these valves are designed to handle extreme heat and elevated exhaust gas temperatures (EGT), making them ideal for high-boost, high-horsepower, and competition applications where standard valves may fail prematurely. The 32 mm head diameter matches OEM specifications while the super alloy construction ensures durability under severe conditions.

Each valve features a chrome-polished stem to reduce friction and enhance longevity, along with swirl-polished, back-cut heads that promote efficient exhaust flow and reduced valve mass. This combination helps improve performance, especially in engines running higher boost levels or pushed toward their thermal limits. These exhaust valves are suitable for Subaru WRX, WRX STI, and other EJ turbo platforms where a stronger, more heat-resistant valve is desired. Professional installation with appropriate valve springs and related components is recommended for best results.