SMY 3inch Mid-Pipe Exhaust Gasket and Hardware Kit 2002-2021 WRX / 2004-2021 STI | 7-Layer Thick Gaskets | Exhaust Replacement Kit
Overview
The SMY 3inch Mid-Pipe Exhaust Gasket and Hardware Kit is designed specifically for Subaru WRX and WRX STI models from 2002 through 2021. This kit addresses common issues such as rusted hardware and leaking exhaust gaskets that can develop over time, especially in older or used exhaust systems. It is an essential upgrade for enthusiasts looking to maintain a reliable and leak-free exhaust connection at the mid-pipe flange, ensuring optimal exhaust flow and preventing unwanted noise or fumes.
Featuring premium GrimmSpeed gaskets that are 22% thicker than OEM and constructed with seven layers, this kit prioritizes durability and a superior seal. The accompanying hardware is made from high-grade Class 8 stainless steel, providing corrosion resistance and long-lasting strength. SMY’s approach combines high-quality materials with precise fitment to deliver a straightforward replacement solution that meets the demands of Subaru performance exhaust setups.
For Subaru owners, maintaining a solid exhaust seal is critical not only for performance but also for preserving the driving experience. A proper gasket and hardware replacement prevent exhaust leaks that can reduce power and cause unpleasant cabin noise. This kit’s compatibility with 3-inch piping across multiple WRX and STI generations makes it a versatile and practical choice for those upgrading or repairing their mid-pipe exhaust connection.
Features & Specifications
This SMY 3inch Mid-Pipe Exhaust Gasket and Hardware Kit is engineered for Subaru WRX and WRX STI models from 2002 to 2021 and features thick 7-layer GrimmSpeed gaskets paired with Class 8 stainless steel hardware. Constructed from premium gasket materials and corrosion-resistant stainless steel, it delivers a reliable, leak-free seal for Subaru enthusiasts seeking durable exhaust flange replacement components.
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Brand: SMY
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Product: 3inch Mid-Pipe Exhaust Gasket and Hardware Kit
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Part Number: SMY-EXT-3IN
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Fitment: 2002-2021 Subaru WRX / 2004-2021 Subaru WRX STI
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Material: Multi-layer gasket material, Grade 8 stainless steel hardware
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Finish: Natural gasket layers, stainless steel hardware finish
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Construction: 7-layer gasket, high-grade Class 8 hardware
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Origin: Not specified
Key Benefits
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Durability: 7-layer GrimmSpeed gaskets are 22% thicker than OEM for enhanced sealing and longevity
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Corrosion Resistance: Grade 8 stainless steel hardware resists rust and maintains clamping force over time
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Fitment: Designed specifically for 3-inch mid-pipe flanges on WRX and STI models, ensuring a precise and secure fit
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Reliability: Prevents exhaust leaks that can impact performance and cause noise or fumes inside the cabin
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Maintenance: Ideal for replacing worn or damaged gaskets and hardware on used or aging exhaust systems
What's Included
- 2× GrimmSpeed 022001 3 Inch 2 Bolt Gaskets (7 Layers, 22% thicker than OEM)
- 4× Grade 8 Stainless Steel Screws, Nuts, and Washers
Installation & Compatibility
Installation of the SMY 3inch Mid-Pipe Exhaust Gasket and Hardware Kit is straightforward for anyone with basic mechanical skills and standard hand tools. The kit replaces the mid-pipe flange gaskets on 3-inch exhaust piping and includes all necessary hardware for a secure connection. No special tools are required beyond typical exhaust flange wrenches or sockets. This kit is compatible with Subaru WRX and WRX STI models from 2002 to 2021, covering multiple generations and exhaust setups. It is not compatible with OEM mid-pipes that do not use 3-inch piping. Always verify your vehicle’s exhaust pipe diameter before purchase to ensure proper fitment.
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Professional Installation: DIY-Friendly
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Modifications Required: None
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Verify Compatibility: Confirm 3-inch mid-pipe exhaust flange size for your specific year and model
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