IAG Single Valve Spring and Titanium Retainer Set For Subaru EJ Engine

This is a straightforward EJ valvetrain upgrade when you need better spring control than stock without overcomplicating the build.

• Valvetrain: Single spring setup with titanium retainers
• Best fit: Works well on moderate rpm and moderate boost setups that still need a real upgrade
• Build style: Simple, proven option when you do not need the more aggressive beehive setup

Fitment: Subaru EJ engines

Why you'd choose it: Choose this when you want better control than stock and a clean upgrade path for a solid street or weekend EJ build.