What material are these exhaust valves made from?

These Manley Race Master exhaust valves are constructed from XH-426 stainless steel. This material is chosen for its durability and ability to withstand the high temperatures and stresses found in performance engines.

Are these valves suitable for all engine types?

These valves are recommended for engines operating under 8000 RPM and are specifically noted as a good choice for alcohol engines. The stainless steel construction and hard tips are designed for demanding conditions.

What is the difference between Race Master and Race Flo valves?

The Race Master designation indicates a straight stem design, while Race Flo valves have a different shape. This specific valve is the Race Master (straight stem) type, which is often chosen for specific airflow characteristics in racing applications.

Specifications

Brand: Manley Performance
Part #: 11127-1
UPC: 807298057040

Manley 01+ Acura RSX Type S (K20A2) 30.0mm Race Master Exhaust Valves - Single

Name: Manley 01+ Acura RSX Type S (K20A2) 30.0mm Race Master Exhaust Valves - Single
Brand: Manley Performance
SKU: manley-performance-manley-01-acura-rsx-type-s-k20a2-30-0mm-race-master-exhaust-v-t14-211145
Price: 28.71 USD
Availability: BackOrder

$28.71

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Manley Race Master exhaust valve. Made from stainless steel with chrome stems and hard tips for improved durability.

Key Features

Fits a range of Acura and Honda vehicles including the 2002-2006 Acura RSX, 2004-2008 Acura TSX, and 2003-2007 Honda Accord.
Constructed from XH-426 stainless steel for durability in high-stress engine environments.
Features chrome stems and hard tips to improve wear resistance and longevity.
Swirl polished under-head areas and fully machined combustion faces help optimize airflow.
Straight stem design, known as Race Master, is suitable for engines operating under 8000 RPM.
Recommended for use as exhaust valves 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

These Manley Race Master exhaust valves are built from XH-426 stainless steel, a strong material chosen for its ability to handle the heat and stress of demanding engine conditions. They feature a straight stem design, often referred to as Race Master, and are specifically sized at 30.0mm for optimal fitment in certain high-performance applications. The chrome-plated stems and hard tips are added to resist wear, ensuring these valves hold up over time, even in engines that see a lot of use or operate at higher RPMs.

Beyond the robust material, the under-head areas are swirl polished to help smooth airflow into the cylinder, and the combustion faces are fully machined. This attention to detail in machining helps improve airflow and combustion efficiency. These valves are also recommended for use in alcohol-fueled engines, which can be particularly harsh on exhaust components. This particular valve is for the exhaust side and is sold individually, so you'll need to order the correct quantity for your engine rebuild.