FactionFab MLS Turbo to Downpipe Gasket

FactionFab MLS Turbo to Downpipe Gasket | Multi-Layer Steel | Exhaust Gasket

Overview

The FactionFab MLS Turbo to Downpipe Gasket is a precision-engineered sealing solution designed to ensure a reliable, leak-free connection between your turbocharger and downpipe. Built for Subaru enthusiasts who demand durability and performance, this gasket maintains exhaust integrity under high temperatures and pressures typical of turbocharged applications. Whether you’re upgrading your exhaust system or replacing a worn gasket, this component is essential for preserving your vehicle’s power delivery and efficiency.

Crafted using advanced multi-layer steel (MLS) technology inspired by head gasket design, this gasket features a robust construction that outperforms traditional exhaust gaskets. Manufactured in Japan from premium 304 and 430 stainless steel, it offers superior corrosion resistance and longevity. The design incorporates 30% compression during installation, allowing it to conform perfectly to imperfect flange surfaces, reducing the risk of exhaust leaks that can compromise performance and cause unwanted noise.

For Subaru owners, maintaining a tight seal between the turbo and downpipe is critical to preserving boost pressure and preventing exhaust leaks that can affect tuning and power output. The enlarged bore size accommodates ported exhaust systems and larger tubing, making it an ideal choice for modified WRX, STI, and other turbocharged Subaru platforms. This gasket’s thoughtful engineering ensures a reliable seal that supports both stock and upgraded setups, enhancing the overall driving experience.

Features & Specifications

This FactionFab MLS Turbo to Downpipe Gasket is engineered for turbocharged Subaru platforms and features multi-layer steel construction with 30% compression for optimal sealing. Constructed from high-grade 304 and 430 stainless steel, it delivers durable, leak-resistant performance for Subaru enthusiasts seeking reliable exhaust sealing and longevity.

• Brand: Faction Fab
• Product: MLS Turbo to Downpipe Gasket
• Part Number: 1.10014.1
• Fitment: Universal turbocharged Subaru applications
• Material: 304 and 430 Stainless Steel
• Finish: Natural stainless steel
• Construction: Multi-layer steel (MLS) with head gasket technology
• Origin: Made in Japan
• Compression Rate: 30% upon installation
• Fire Ring Design: Round fire ring for improved sealing
• Bore Size: Enlarged to fit ported exhaust systems and larger tubing

Key Benefits

• Durability: High-quality stainless steel construction resists corrosion and heat degradation for long-lasting performance.
• Sealing Performance: 30% compression ensures a tight seal even on imperfect flange surfaces, reducing exhaust leaks.
• Compatibility: Enlarged bore size accommodates ported heads and larger exhaust tubing common in Subaru performance builds.
• Precision Engineering: Multi-layer steel design with undercut intermediate layers allows proper crushing and superior sealing compared to competitors.
• OEM+ Quality: Compression and fire ring design exceed OEM standards, providing a more reliable seal than factory gaskets.
• Made in Japan: Manufactured with strict quality control for consistent fitment and performance.

What's Included

• 1× FactionFab MLS Turbo to Downpipe Gasket

Installation & Compatibility

Installation of the FactionFab MLS Turbo to Downpipe Gasket is straightforward for those with basic mechanical skills and access to standard hand tools. It is a direct replacement gasket designed to fit turbocharged Subaru models with compatible flange sizes. Proper torque specifications should be followed to achieve the recommended 30% compression and ensure a leak-free seal. No special modifications are required, but it is advisable to inspect mating surfaces for damage or warping before installation. This gasket supports both OEM and aftermarket exhaust components, including ported heads and larger diameter downpipes.

• Professional Installation: Recommended for best results
• Modifications Required: None
• Verify Compatibility: Confirm flange size and turbo/downpipe fitment for your specific Subaru model

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