Brian Crower BC3601-INC 32 mm Inconel Exhaust Valves for Subaru EJ Engines

Vehicle Fitment

• Subaru vehicles with EJ20/EJ25 engines:
• 2002-2014 Subaru WRX (EJ205/EJ255/EJ257)
• 2004-2007 Subaru WRX STI (EJ257)
• 2008-2014 Subaru WRX STI (EJ257/EJ255)
• 2015-2021 Subaru WRX STI (EJ257)
• 2004-2008 Subaru Forester XT (EJ255/EJ257)

Features

• Premium Inconel exhaust valves engineered for high-boost, high-RPM builds
• 32 mm head diameter for efficient exhaust gas flow under heavy load
• Dished head design improves heat tolerance and combustion dynamics
• Undercut stem reduces reciprocating mass for improved valve train response
• Swirl-polished finish enhances exhaust gas evacuation and airflow
• Constructed from Inconel superalloy for extreme temperature and stress resistance
• Engineered specifically for Subaru EJ-series performance engines
• Ideal for turbocharged and high horsepower applications

Specifications

• Part Number: BC3601-INC
• Valve Type: Exhaust / Dished
• Head Diameter: 32 mm (standard size)
• Stem Diameter: ~5.96 mm
• Overall Length: ~104.7 mm
• Material: Inconel high-temperature alloy
• Application: Subaru EJ20/EJ25 engine series

Included Components

• 8x Brian Crower Inconel Exhaust Valves (BC3601-INC)

Product Description

The Brian Crower BC3601-INC Inconel Exhaust Valve set is built for Subaru performance engines using EJ20 and EJ25 platforms - including WRX, WRX STI, and Forester XT models spanning 2002-2021. Engineered from premium Inconel alloy, these exhaust valves deliver superior strength and heat resistance compared to standard stainless steel valves, making them well suited for high-boost and high-RPM applications where stock components may fall short. The 32 mm head size and dished design optimize exhaust flow while tolerating the elevated temperatures produced by turbocharged buildup.

With an undercut stem that reduces reciprocating mass and a swirl-polished finish that promotes efficient exhaust gas evacuation, this set of eight Inconel exhaust valves supports aggressive driving, high horsepower tuning, and track-oriented use. Whether you're refreshing a worn valvetrain on a street car or building a high-output turbo setup, the BC3601-INC valves provide reliable, long-lasting performance in Subaru EJ-series engines.