411 Works Stainless Steel Mandrel Bends | 304L Stainless Steel | Precision Mandrel Bent Tubing

Overview

The 411 Works Stainless Steel Mandrel Bends are premium quality mandrel bent tubes designed for fabricators and Subaru enthusiasts who demand the best materials for custom exhaust, intake, and turbo piping projects. These bends provide smooth, consistent curves without deformation, ensuring optimal flow and fitment in high-performance applications. While not vehicle-specific, their versatility makes them ideal for custom builds on WRX, STI, BRZ, and other Subaru platforms.

Manufactured from American-sourced 304L stainless steel and precision welded by RathGibson in Wisconsin, these tubes are bent by Bending Solutions in Utah using advanced mandrel bending techniques. The fusion welding process eliminates filler material, resulting in a seamless interior and exterior surface that maximizes flow efficiency and durability. This attention to detail reflects 411 Works’ commitment to quality and reliability in fabrication components.

For Subaru owners building or upgrading turbo systems, exhausts, or intercooler piping, these mandrel bends offer a significant advantage by maintaining consistent diameter and smooth bends that reduce turbulence and pressure drop. This translates to better boost response and power delivery when paired with proper tuning and supporting modifications. Their robust construction also ensures long-term resistance to corrosion and heat, critical for Subaru’s demanding performance environments.

Features & Specifications

This 411 Works Stainless Steel Mandrel Bend is engineered for custom fabrication and features precision mandrel bending with fusion welded seams. Constructed from 304L stainless steel with a 16 gauge thickness, it delivers durability and smooth flow for Subaru enthusiasts seeking reliable, high-quality tubing for performance builds.

• Brand: 411 Works
• Product: Stainless Steel Mandrel Bends
• Part Number: 411-SS345065
• Fitment: Universal / Custom Fabrication
• Material: 304L Stainless Steel
• Finish: Natural Stainless Steel
• Construction: Fusion Welded, Mandrel Bent
• Origin: Made in USA
• Grade: ASTM A249/A269
• Wall Thickness: 16 Gauge / 0.065"
• Leg Length Options: 1.5" - 4", 1.75" - 5.5", 2" - 6", 3" - 7"

Key Benefits

• Quality Construction: Fusion welded without filler material ensures a smooth, consistent seam inside and out for optimal flow and strength.
• Material Durability: 304L stainless steel resists corrosion and heat, ideal for Subaru turbo and exhaust applications.
• Precision Bending: Mandrel bending maintains tube diameter through bends, reducing turbulence and pressure loss.
• Made in USA: Manufactured and bent domestically, supporting quality control and consistent standards.
• Versatile Fitment: Suitable for custom fabrication projects across Subaru platforms and other vehicles.
• Fabrication Ready: Ideal for custom exhaust, intake, and turbo piping builds requiring reliable, high-grade tubing.

What's Included

• 1× 411 Works Stainless Steel Mandrel Bend (leg length as selected)

Installation & Compatibility

These mandrel bends are designed for custom fabrication and require welding skills and appropriate tools for installation. They are not direct bolt-on parts but essential components for building or modifying Subaru exhaust and intake systems. Professional installation is recommended unless you have experience with stainless steel welding and fabrication. Verify leg length and bend angle compatibility with your specific project before purchase.

• Professional Installation: Recommended
• Modifications Required: Custom welding and fitting necessary
• Verify Compatibility: Confirm dimensions and bend radius for your application

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