Affordable Manley Performance Extreme Duty Stainless Steel Valves +1mm Oversized 2002-2005 WRX / 2004-2014 STI

Description

Enhance your Subaru WRX STI’s engine performance with the Manley Performance Extreme Duty +1mm Oversized Stainless Steel Valves. Designed specifically for 2002-2005 WRX and 2004-2014 WRX STI models, these valves improve airflow and durability, helping your engine breathe better for increased power and efficiency during rebuilds or forced induction upgrades.

Crafted from premium XH-426 stainless steel for exhaust valves and NK-842 stainless steel for intake valves, these components feature chrome stems and hard tips to withstand high-performance demands. The Pro Flo underhead design optimizes airflow, while the fully machined, swirl polished finish reduces friction and wear. With a 33mm head diameter and +1mm oversizing, these valves provide reliable, long-lasting performance for serious Subaru enthusiasts.

Ideal for those rebuilding or upgrading their Subaru WRX STI engines, these valves deliver enhanced durability and efficiency. Trust Subimods for quality Subaru parts tailored to your performance needs. Upgrade your engine today and experience the difference in power and reliability.