
IAG Beehive Valve Spring and Titanium Retainer Set WRX 02-14 / STI 04-21 | IAG-ENG-3206
Product Fitment: 2002-2014 Subaru WRX 2004-2021 Subaru STI 2004-2013 Subaru Forester XT 2005-2012 Subaru Legacy GT Strengthen your valvetrain , RPM potential, and efficiency with the IAG Beehive Valve Spring and Titanium Retainer Set—built for aggressive performance without sacrificing reliability. Features: Reduces valvetrain weight by up to 68 grams vs. OEM components Supports higher RPM and boost levels than factory valve springs Ideal for street, drag, and road racing builds Spring Pressure Ratings: Seat Pressure: 92 lbs @ 1.340" Open Pressure: 241 lbs @ 0.893" Recommended maximum RPM: 9000 Titanium Retainers: Lightweight titanium significantly reduces mass at the top of the valve Allows more precise, stable valve movement at high RPM Evenly distributes spring loads to reduce failure risk under stress Precision-machined in-house for consistent quality and durability High-Quality Valve Springs: Constructed from ovate chrome silicone alloy steel Designed