Weapon R Race Intake Manifold

2004–2006 Scion xA / xB

Part #: 501-112-108

Overview

The Weapon R Race Aluminum Intake Manifold is a high-performance upgrade designed specifically for the 2004 to 2006 Scion xA and xB models. Engineered to optimize airflow and increase engine efficiency, this intake manifold is ideal for enthusiasts looking to extract more power from their naturally aspirated or forced induction setups. By improving the volume and velocity of incoming air, it enhances throttle response and overall engine performance.

Whether you are building a street performance car or a track-focused machine, the Weapon R Race Intake Manifold delivers a reliable and effective solution to boost horsepower and torque without sacrificing drivability.

Key Features

This intake manifold incorporates advanced design elements and quality materials to ensure superior performance and durability. Key features include:

• High-volume aluminum construction for improved airflow and heat dissipation
• Polished finish for corrosion resistance and aesthetic appeal
• Precision CNC machining for exact fitment and optimal sealing
• Designed to increase horsepower by 15-30hp on naturally aspirated engines
• Capable of delivering 45-90hp gains on forced induction applications
• Direct bolt-on fitment for 2004–2006 Scion xA and xB models
• Lightweight design to reduce overall engine bay weight
• Compatible with stock and aftermarket throttle bodies

Construction & Design

Crafted from high-quality aluminum, the Weapon R Race Intake Manifold offers exceptional strength and heat resistance compared to stock plastic manifolds. The polished aluminum surface not only enhances durability but also helps reduce heat soak, maintaining cooler intake air temperatures for improved combustion efficiency. The manifold’s internal runners are carefully engineered to maximize airflow velocity and volume, ensuring consistent power delivery across the RPM range.

Each unit undergoes precision CNC machining to guarantee perfect fitment and sealing, minimizing the risk of vacuum leaks and ensuring reliable operation under demanding conditions.

Performance & Sound

By increasing the volume of air delivered to the engine, this intake manifold significantly improves engine breathing, resulting in noticeable horsepower and torque gains. Naturally aspirated engines can expect an increase of 15 to 30 horsepower, while forced induction setups may see gains ranging from 45 to 90 horsepower, depending on supporting modifications.

Additionally, the improved airflow can enhance throttle response and engine sound, providing a more aggressive induction tone that complements performance driving.

Installation & Fitment

The Weapon R Race Intake Manifold is designed as a direct replacement for the factory intake manifold on 2004 to 2006 Scion xA and xB models, ensuring straightforward installation with no major modifications required. It bolts directly onto the engine using existing mounting points and is compatible with stock throttle bodies and sensors.

Installation typically requires basic hand tools and mechanical knowledge. For best results, it is recommended to inspect and replace any worn gaskets or seals during installation to prevent vacuum leaks.

What's Included

• Weapon R Race Aluminum Intake Manifold (Polished Finish)
• Installation hardware
• Gaskets for intake manifold sealing
• Instruction sheet for installation guidance

Ideal For

This intake manifold is perfect for Scion xA and xB owners seeking to enhance engine performance, whether for street driving, weekend track use, or competitive motorsports. It is especially beneficial for those running naturally aspirated engines looking for a reliable power increase or forced induction setups aiming to maximize boost efficiency and output.