Weapon R Secret Weapon Intake System

2008–2014 Scion xD

Part #: 305-158-101

Overview

The Weapon R Secret Weapon Intake System is engineered to significantly enhance the air intake efficiency of your 2008–2014 Scion xD. Designed for enthusiasts seeking improved throttle response and engine performance, this intake system increases the volume and velocity of air delivered to the engine. By optimizing airflow dynamics, it naturally feeds the engine up to three times more air than the factory intake, supporting better combustion and overall power delivery.

This intake system is ideal for drivers who want a reliable, high-quality upgrade that delivers measurable performance gains without compromising daily drivability or requiring extensive modifications.

Key Features

The Secret Weapon Intake System incorporates advanced design elements to maximize airflow and engine efficiency. Key features include:

• Dual air velocity profiles to optimize airspeed and volume entering the engine
• High-quality 6061 aluminum intake pipe, precision bent using automated CNC mandrel bending for smooth airflow
• Polished finish providing a durable, corrosion-resistant surface with a show-quality appearance
• SW1 air filter featuring a tuned velocity stack that reduces turbulence and increases air velocity
• Open-pore, high-density reusable foam filter media for superior filtration and airflow
• Designed specifically for the 2008–2014 Scion xD for a perfect fit and seamless integration
• Over 250 applications available across cars, trucks, and SUVs, reflecting extensive engineering expertise
• Backed by a 1 million mile limited warranty, underscoring Weapon R’s commitment to quality and durability

Construction & Design

The intake pipe is crafted from premium 6061 aluminum, known for its strength, lightweight properties, and resistance to corrosion. Using an automated CNC mandrel bender ensures the pipe maintains a smooth internal surface and precise bends, minimizing airflow restrictions and turbulence. The polished finish not only enhances aesthetics but also provides long-lasting protection against environmental elements.

The SW1 air filter is engineered with a tuned velocity stack that optimizes airflow by increasing velocity while reducing turbulence, allowing the engine to breathe more efficiently. The filter media is an open-pore, high-density foam that is reusable and easy to maintain, delivering consistent filtration performance over time.

Performance & Sound

By increasing the volume and speed of air entering the engine, the Secret Weapon Intake System improves throttle response and can contribute to enhanced engine efficiency. The design’s dual velocity profiles ensure a steady, high-speed airflow that supports better combustion. Additionally, the intake imparts a subtle, aggressive induction sound that enhances the driving experience without being intrusive.

Installation & Fitment

The Weapon R Secret Weapon Intake System is designed for direct fitment on all 2008–2014 Scion xD models, requiring no cutting or major modifications. Installation is straightforward and can typically be completed with basic hand tools. The system replaces the factory air intake components and includes all necessary hardware for a secure and proper fit.

What's Included

• 6061 aluminum intake pipe with polished finish
• SW1 high-performance air filter with tuned velocity stack
• Mounting hardware and clamps
• Installation instructions

Ideal For

This intake system is perfect for Scion xD owners looking to improve engine breathing and performance without sacrificing reliability or daily drivability. It suits enthusiasts who want a high-quality, durable upgrade that enhances throttle response and adds a refined induction sound. Whether for street driving or light performance applications, the Secret Weapon Intake System delivers a balanced blend of performance and style.

Weapon*R is a long-running import performance brand best known for intake systems and filtration products like their Secret Weapon and Dragon intake lines. Founded in the early ’90s with a focus on high-performance parts, Weapon*R products are aimed at enthusiasts who want improved airflow, aggressive induction sound, and bolt-on style upgrades for sport-compact platforms.