• Manley Race Series 36mm Stainless Race Flo Valves | Subaru WRX (00-03) / STi (04) (11138-8)
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Manley Race Series 36mm Stainless Race Flo Valves | Subaru WRX (00-03) / STi (04) (11138-8)

Manley Race Series 36mm Stainless Race Flo Valves | Subaru WRX (00-03) / STi (04) (11138-8)

11138-8

In stock

$211.14 USD
$263.93 USD $211.14 USD
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The Manley Race Series intake valves for Subaru WRX (2000-2003) with EJ20 engines and 2004 STi models are high-performance stainless steel valves designed for racing applications. Crafted from durable stainless steel, these 36mm valves are engineered to withstand the demanding conditions of bracket, drag, and oval track racing. They are meticulously manufactured to meet the rigorous standards of motorsport, providing excellent heat resistance, strength, and longevity. These valves are ideal for engines operating under 8000 RPM, offering improved airflow and combustion efficiency. Their precise construction ensures reliable performance and durability in high-stress racing environments, making them a top choice for serious racers seeking maximum engine output.

Designed as direct replacements or upgrades for specific Subaru models, these intake valves are suitable for engines in Subaru WRX from 2000 to 2003 and 2004 STi models. They are intended for use in high-performance racing setups, including bracket, drag, and oval track applications. Installation involves replacing the stock valves with these race-grade components, ensuring optimal airflow and combustion. The kit includes the stainless steel intake valves, which are compatible with existing valve seats and guides. These valves are perfect for race cars, track enthusiasts, and performance tuners aiming to enhance engine breathing and overall power output in demanding racing scenarios.

Overview

Manley Performance Intake Valves

Fits 2000–2003 Subaru WRX EJ20 and 2004 Subaru STi

Part #: 11138-8

Overview

The Manley Race Series intake valves are high-performance engine components designed for racing enthusiasts and professional tuners seeking maximum durability and efficiency. Crafted from premium stainless steel, these valves are engineered to withstand the intense demands of high-revving engines, making them ideal for bracket, drag, and oval track racing. Whether you're building a competitive Subaru WRX or STi engine, these valves help optimize airflow and combustion, supporting your engine’s performance at up to 8000 RPM. These valves are a perfect upgrade for those aiming to enhance engine response, reliability, and overall power output in high-performance applications. They are built to meet the rigorous standards of motorsport, ensuring longevity and consistent performance under demanding conditions.

Key Features

Designed from high-quality stainless steel for exceptional strength and corrosion resistance, these valves feature a precisely engineered 36mm diameter to improve airflow and combustion efficiency. The Race Series valves are meticulously machined to exact specifications, ensuring a perfect fit and optimal sealing. Their robust construction supports high RPM operation and aggressive racing environments, providing consistent performance and durability. The valves’ design promotes efficient heat dissipation, helping to maintain optimal engine temperatures during extended high-performance runs.

Construction & Design

Manufactured from premium stainless steel, these intake valves are engineered for maximum strength and resistance to heat and corrosion. The precise machining and finishing ensure a perfect fit within your engine’s cylinder head, supporting reliable sealing and consistent operation under high-stress conditions.

Performance & Response

These valves are designed to support high RPM operation, helping improve airflow and combustion efficiency. Their robust construction enhances engine response and reliability, making them suitable for demanding racing applications where every horsepower and response counts.

Installation & Fitment

Intended for use in Subaru WRX models from 2000 to 2003 with EJ20 engines and 2004 Subaru STi models, these valves are direct replacements for stock intake valves. Proper installation requires standard engine assembly procedures, and professional installation is recommended to ensure optimal performance.

What’s Included

This package includes a set of stainless steel intake valves designed specifically for the specified Subaru models, ensuring a precise fit and reliable operation.
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