What material is this exhaust valve made from?

This Manley exhaust valve is constructed from high-quality stainless steel, specifically XH-426. The stems are also chrome-plated for enhanced durability and wear resistance.

What is the difference between Race Master and Race Flo valve shapes?

The Race Master valve features a straight stem, while the Race Flo is a different shape designed for specific racing engine configurations. This particular valve is the Race Flo shape.

Are these valves suitable for high-RPM engines?

Yes, Manley's Race Series valves are engineered for engines operating under 8000 RPM. They are a popular choice for bracket, drag, and oval track racing applications.

Specifications

Brand: Manley Performance
Part #: 11135-1
UPC: 807298046013

Manley 90-00 Mitsubishi Eclipse GS GST 2.0L (4G63-4G63T) DOHC 16 Exhaust 31.5mm Stainless Race Flo

Name: Manley 90-00 Mitsubishi Eclipse GS GST 2.0L (4G63-4G63T) DOHC 16 Exhaust 31.5mm Stainless Race Flo
Brand: Manley Performance
SKU: manley-performance-manley-90-00-mitsubishi-eclipse-gs-gst-2-0l-4g63-4g63t-dohc-1-t14-13782
Price: 28.71 USD
Availability: BackOrder

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Fits 2003-2006 Mitsubishi Lancer. Manley Race Flo exhaust valve made from stainless steel with a 31.5mm head diameter for improved durability.

Key Features

Fits 2003-2006 Mitsubishi Lancer.
This is an exhaust valve with a 31.5mm head diameter and Race Flo shape.
Constructed from durable stainless steel (XH-426) for longevity.
Features chrome-plated stems and hard tips for improved wear resistance.
Swirl-polished under-head areas and fully machined combustion faces help optimize airflow.
Recommended for exhaust valve use in alcohol engines.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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About this part

Product Details

Starting with a 31.5mm swirl-polished stainless steel head, this Manley Race Flo exhaust valve is built for demanding engine builds. It's designed for Mitsubishi Lancer models from 2003 to 2006, specifically for the 2.0L 4G63 and 4G63T engines. If you're rebuilding the top end of your Lancer and need reliable exhaust valves that can handle higher RPMs, these are a solid option.

Manley uses XH-426 stainless steel for these exhaust valves, which is known for its durability. The stems are chrome-plated for better wear resistance, and the combustion faces are fully machined to help optimize airflow into the cylinder. These valves are also recommended for use in alcohol-fueled engines, which can run hotter and put more stress on exhaust components.

This is the Race Flo shape, which is a specific design choice for certain racing engine configurations. Make sure this shape and the 31.5mm head diameter are what your build requires.