Valvetrain

SuperTech Exhaust Valve (32mm, Std.), 2002-2014 WRX & 2004-2018 STi
Available For Order!

SuperTech Exhaust Valve (32mm, Std.), 2002-2014 WRX & 2004-2018 STi

$18.45

SuperTech Valve Spring Kit, 2002-2014 WRX & 2004-2018 STi
Available For Order!

SuperTech Valve Spring Kit, 2002-2014 WRX & 2004-2018 STi

$436.16

Cosworth High RPM Valvetrain Set (Single Springs), '02-'14 WRX & '04-'18 STi
Available For Order!

Cosworth High RPM Valvetrain Set (Single Springs), '02-'14 WRX & '04-'18 STi

$380.00

Ferrea Titanium Retainers (Step Diameter 15.70mm), 2004-2017 STi
Available For Order!

Ferrea Titanium Retainers (Step Diameter 15.70mm), 2004-2017 STi

$15.07

Ferrea Titanium Retainers (Step Diameter 16.51mm), 2004-2017 STi
Available For Order!

Ferrea Titanium Retainers (Step Diameter 16.51mm), 2004-2017 STi

$15.07

Ferrea Dual Valve Springs (Drag Racing), 2004-2014 STi
Available For Order!

Ferrea Dual Valve Springs (Drag Racing), 2004-2014 STi

$22.87

Ferrea Dual Valve Springs (Endurance Racing), 2004-2014 STi
Available For Order!

Ferrea Dual Valve Springs (Endurance Racing), 2004-2014 STi

$22.87

Ferrea Spring Seat Locators, 2004-2014 STi
Available For Order!

Ferrea Spring Seat Locators, 2004-2014 STi

$7.59

SuperTech Inconel Exhaust Valve (+1mm), 2002-2014 WRX & 2004-2018 STi
Available For Order!

SuperTech Inconel Exhaust Valve (+1mm), 2002-2014 WRX & 2004-2018 STi

$26.70