Vibrant Performance Aluminized Mild Steel 3" O.D. U-J Mandrel Bent Tubing

2011–2025 Subaru Forester / Subaru WRX / Subaru STI / Other compatible models with 3" intake or exhaust systems

Part #: 12611

Overview

The Vibrant Performance Aluminized Mild Steel 3" O.D. U-J Mandrel Bent Tubing is a high-quality exhaust and fabrication component designed for automotive enthusiasts and professional fabricators seeking durable, reliable, and precise mandrel bends. Crafted from superior-grade aluminized mild steel, this tubing offers excellent resistance to corrosion and heat, making it ideal for custom exhaust systems, turbo manifolds, and other performance applications. Its unique U-J design combines a 180-degree bend with a 45-degree bend into a single, seamless piece, providing maximum flexibility and reducing the need for multiple fittings or joints.

Whether you're building a custom exhaust system for increased performance, improved airflow, or a more aggressive sound, this mandrel bent tubing allows you to achieve complex routing with ease. Its precise bends help maintain optimal flow characteristics, supporting your goals for increased horsepower and torque while ensuring a clean, professional finish. Perfect for both street and race applications, this tubing is a versatile choice for those who demand quality and performance in their fabrication projects.

Key Features

Vibrant's U-J Mandrel Bent Tubing is engineered with several key features that set it apart from standard bent pipes:

• Constructed from aluminized mild steel, offering a superior balance of strength, corrosion resistance, and affordability.
• Unique U-J design combines a 180-degree bend with a 45-degree bend into one integral unit, reducing fabrication time and potential leak points.
• Mandrel bending process ensures smooth, consistent bends that maintain optimal airflow and minimize turbulence.
• Precisely formed bends help support high-performance exhaust and intake systems, improving overall flow efficiency.
• Hot-dip aluminum-silicon coating provides enhanced durability and resistance to rust and heat-related degradation.
• Ideal for custom fabrication, turbo manifolds, and exhaust piping where complex routing is required.
• Designed for professional and enthusiast fabricators seeking reliable, high-quality components.
• Compatible with various aftermarket and OEM applications requiring 3" diameter tubing.

Construction & Design

This mandrel bent tubing is manufactured using a precise mandrel bending process that maintains the tube's cross-sectional integrity throughout the bends. The aluminized mild steel material is cold-rolled and then hot-dip coated with an aluminum-silicon alloy, providing excellent corrosion resistance and heat durability. The U-J design integrates two bends into one seamless piece, reducing the number of welds and joints, which enhances strength and reduces potential leak points. The tubing's smooth interior surface promotes efficient exhaust flow, helping to support performance gains and a cleaner engine bay appearance. Its robust construction ensures longevity and reliable performance under demanding conditions, making it suitable for both street and race applications.

Installation & Fitment

This 3" U-J mandrel bent tubing is designed for easy integration into custom exhaust and intake systems. It features standard dimensions compatible with various aftermarket components and OEM parts. Fabricators and mechanics can easily cut, weld, and fit this tubing to match their specific routing needs. No complex modifications or special tools are required beyond typical fabrication equipment. Its seamless design and precise bends facilitate straightforward installation, making it an excellent choice for professional exhaust shops and DIY enthusiasts alike.

• Compatible with 3" diameter exhaust and intake systems
• Designed for custom fabrication projects requiring complex routing
• No cutting, drilling, or special tuning necessary for installation

What's Included

• One piece of 3" O.D. U-J Mandrel Bent Tubing with integrated 180° and 45° bends
• All necessary fittings and hardware not included; intended for custom fabrication

Ideal For

• Performance enthusiasts building custom exhaust or intake systems
• Professional fabricators and mechanics
• Anyone seeking durable, high-quality mandrel bent tubing for complex routing
• Turbo and high-performance vehicle applications requiring precise bends