Weapon R Thermal Throttle Body Gasket

2004–2006 Scion xA / xB 1NZ-FE Engine

Part #: 626-113-101.B

Overview

The Weapon R Thermal Throttle Body Gasket is a high-performance upgrade designed specifically for the 2004 to 2006 Scion xA and xB models equipped with the 1NZ-FE engine. This specialized gasket replaces the OEM intake gasket and serves as a thermal barrier between the cylinder head and the intake manifold. By reducing heat transfer, it helps maintain cooler intake air temperatures, which can improve combustion efficiency and overall engine performance.

Ideal for enthusiasts looking to extract more power and torque from their naturally aspirated Scion engines, this gasket offers a simple yet effective way to enhance throttle response and increase horsepower without extensive modifications.

Key Features

The Weapon R Thermal Throttle Body Gasket incorporates advanced materials and engineering to deliver reliable performance gains and durability. Key features include:

• High-temperature resistant construction capable of withstanding up to 400°F
• Thermal insulating properties that reduce heat soak from the cylinder head
• Direct OEM fitment for 2004–2006 Scion xA and xB 1NZ-FE engines
• Improves intake air density for up to 5% increase in horsepower and torque
• Durable plastics designed to resist warping and degradation under extreme heat
• Simple bolt-on installation with no modifications required
• Lightweight design that does not affect throttle body operation
• Enhances throttle response and engine efficiency

Construction & Design

The gasket is crafted from high-temperature resistant plastics engineered to endure continuous exposure to engine bay heat up to 400°F. This material choice ensures long-lasting durability and maintains its insulating properties over time. The design focuses on minimizing heat transfer from the cylinder head to the intake manifold, which is critical for preserving cooler, denser air charge entering the combustion chamber.

Precision manufacturing guarantees a perfect OEM fit, ensuring a tight seal and preventing any vacuum leaks that could negatively impact engine performance. The gasket’s robust construction also resists deformation, maintaining consistent performance throughout its service life.

Performance & Sound

By reducing heat soak, the Weapon R Thermal Throttle Body Gasket helps maintain cooler intake air temperatures, which can lead to more efficient combustion and improved engine output. Users may experience up to a 5% increase in horsepower and torque, translating to enhanced throttle response and a more engaging driving experience. While this gasket does not directly affect exhaust sound, the improved engine efficiency can contribute to a smoother and more responsive power delivery.

Installation & Fitment

Installation is straightforward and designed to be a direct replacement for the factory throttle body gasket on 2004–2006 Scion xA and xB models with the 1NZ-FE engine. No modifications or special tools are required, making it an accessible upgrade for both professional mechanics and experienced DIY enthusiasts. Simply remove the OEM gasket, clean the mating surfaces, and install the Weapon R Thermal Throttle Body Gasket to ensure a proper seal and optimal thermal insulation.

What's Included

• One Weapon R Thermal Throttle Body Gasket (Part #626-113-101.B)
• Installation instructions

Ideal For

This thermal throttle body gasket is perfect for Scion xA and xB owners seeking a reliable and cost-effective way to improve engine performance through better thermal management. It is especially suited for enthusiasts who want to maximize naturally aspirated power gains without extensive engine modifications or tuning. Additionally, it complements other intake and exhaust upgrades by helping maintain cooler intake air temperatures for consistent performance.

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.