411 Works Stainless Steel Heat Sink O2 Bung Coped | Precision CNC Machined | Stainless Steel Fabrication Component
Overview
The 411 Works Stainless Steel Heat Sink O2 Bung is a precision-machined component designed for custom exhaust fabrication and sensor installation. Crafted from high-quality 304L stainless steel, this O2 bung provides a reliable and durable mounting point for oxygen sensors, essential for accurate engine management and emissions monitoring. It is ideal for Subaru enthusiasts and fabricators who demand exact fitment and long-lasting performance in their exhaust setups.
Manufactured in-house on HAAS CNC machines using premium Swedish stainless steel, this bung exemplifies 411 Works’ commitment to quality and precision. The coped design allows it to fit seamlessly on exhaust tubing ranging from 2.5 to 4 inches in diameter, ensuring a clean and professional weld joint. The M18x1.5 threaded bung is standard for most O2 sensors, making it a versatile choice for a variety of Subaru platforms and custom builds.
For Subaru owners focused on performance and reliability, this heat sink O2 bung offers excellent thermal management to protect sensor accuracy and longevity. Its stainless steel construction resists corrosion and heat degradation, critical for the demanding conditions of turbocharged WRX, STI, and other Subaru exhaust systems. When paired with other 411 Works components, it facilitates a seamless fabrication experience that supports precise tuning and optimal engine performance.
Features & Specifications
This 411 Works Stainless Steel Heat Sink O2 Bung is engineered for custom exhaust fabrication and sensor mounting, featuring a coped design for 2.5" to 4" tubing and M18x1.5 threads. Constructed from durable 304L stainless steel, it delivers corrosion resistance and thermal management for Subaru enthusiasts seeking reliable sensor integration.
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Brand: 411 Works
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Product: Stainless Steel Heat Sink O2 Bung Coped
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Part Number: 411-O2HSWBSSM18X155
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Fitment: Universal fit for 2.5" - 4" diameter tubing
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Material: 304L Stainless Steel
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Finish: Natural stainless steel
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Construction: CNC machined, coped for tubing fitment
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Origin: Made in USA with Swedish steel
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Thread Size: M18x1.5
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Tube Diameter Compatibility: 2.5" - 4"
Key Benefits
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Precision Fitment: Coped design ensures a perfect match to exhaust tubing for clean, strong welds.
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Durability: 304L stainless steel resists corrosion and withstands high exhaust temperatures.
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Thermal Management: Heat sink design helps protect O2 sensors from excessive heat, improving sensor lifespan and accuracy.
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Versatility: Fits a wide range of tubing sizes common in Subaru exhaust systems, ideal for custom fabrication.
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Quality Manufacturing: CNC machining guarantees consistent dimensions and thread integrity for reliable sensor installation.
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Made in USA: Supports domestic manufacturing with premium imported materials for superior quality control.
What's Included
- 1× 411 Works Stainless Steel Heat Sink O2 Bung Coped
Installation & Compatibility
Installation of the 411 Works Stainless Steel Heat Sink O2 Bung requires welding onto the exhaust tubing, making professional installation recommended unless you have welding experience and proper equipment. The coped design simplifies alignment on 2.5" to 4" diameter pipes, but precise fitment and weld quality are critical for sensor performance and exhaust integrity. No additional modifications are necessary beyond standard fabrication practices. This bung is compatible with all oxygen sensors using M18x1.5 threads and fits a broad range of Subaru exhaust setups and custom builds.
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Professional Installation: Recommended
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Modifications Required: None beyond welding
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Verify Compatibility: Confirm tubing diameter and sensor thread size before installation
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