The Subaru WRX STI Engine Exhaust Valve by Manley Performance - Extreme Duty - 2004 is designed for those who demand the highest level of performance and reliability from their exhaust system. This high-quality valve is specifically designed to withstand extreme force and heat, making it ideal for specialized applications such as Top Fuel, Funny Car, and marine engines.

The Manley Performance Extreme Duty exhaust valves are constructed from XH-432 XtremeAlloy, a material known for its exceptional strength and durability. These valves are built to last, featuring chrome stems and hard tips that provide outstanding longevity and wear resistance. The swirl-polished under-head areas and fully machined combustion faces optimize airflow and combustion efficiency, ensuring that your engine performs at its best even under the most demanding conditions.

Features

• XH-432 XtremeAlloy construction for superior heat resistance.
• Chrome stems and hard tips for longevity and wear resistance.
• Swirl polished under head areas for improved airflow.
• Fully machined combustion faces for increased combustion efficiency.
• Ideal for specialized applications like Top Fuel, Funny Car, and marine engines.

We invite you to explore the extraordinary capabilities of the Manley Performance Extreme Duty Series valves for your Subaru WRX STI. Whether you're a drag racing enthusiast or a marine engine aficionado, these valves are designed to help you achieve unparalleled performance. If you have any questions or would like assistance with your purchase, please don't hesitate to call us at 512-982-9393 (TX) or 562-981-6800 (CA). We offer installation and customization services at both our Austin, Texas, and Los Angeles, California locations. If you're considering purchasing multiple items, please contact us for possible shipping discounts. We install on premises at both locations.

CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov