{"product_id":"supertech-toyota-frs-subaru-brz-fa20d-manganese-bronze-exhaust-valve-guide-5-5mm-stem","title":"Supertech Exhaust Valve Guide: Toyota 86, Subaru BRZ \u0026 Scion FR-S","description":"\u003ch3\u003eSupertech Exhaust Valve Guide\u003c\/h3\u003e\u003cp\u003e2017–2020 Toyota 86 \/ 2013–2020 Subaru BRZ \/ 2013–2016 Scion FR-S FA20D Engine\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eGDE-TFRS55-E\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eOverview:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe Supertech Exhaust Valve Guide is a precision-engineered replacement part designed specifically for the FA20D engine found in the Toyota 86 (2017–2020), Subaru BRZ (2013–2020), and Scion FR-S (2013–2016). Crafted from durable manganese bronze, this valve guide features a 5.5mm stem size to ensure optimal fit and function within the exhaust valve train.\u003c\/p\u003e\u003cp\u003eThis component is ideal for enthusiasts and mechanics seeking to maintain or improve the reliability and performance of their vehicle’s cylinder head. Whether you are performing an engine rebuild, addressing wear, or upgrading for enhanced durability, the Supertech Exhaust Valve Guide offers a high-quality solution engineered to meet OEM specifications.\u003c\/p\u003e\u003cp\u003eBy installing this valve guide, you’ll help ensure precise valve movement and sealing, which supports efficient exhaust flow and contributes to consistent engine performance over time.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe Supertech Exhaust Valve Guide is designed with quality and performance in mind. Key features include:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eMaterial: Made from manganese bronze, known for excellent wear resistance and thermal conductivity, enhancing durability under high-temperature exhaust conditions.\u003c\/li\u003e\n\u003cli\u003eStem Size: Precisely sized at 5.5mm to match the FA20D engine’s exhaust valve stem for accurate fitment and smooth valve operation.\u003c\/li\u003e\n\u003cli\u003eOEM Compatibility: Engineered to meet or exceed factory specifications, ensuring reliable performance and ease of installation.\u003c\/li\u003e\n\u003cli\u003eImproved Durability: Manganese bronze construction helps reduce valve guide wear, extending engine life and maintaining valve alignment.\u003c\/li\u003e\n\u003cli\u003eFitment Specific: Designed exclusively for Toyota 86 (2017–2020), Subaru BRZ (2013–2020), and Scion FR-S (2013–2016) equipped with the FA20D engine.\u003c\/li\u003e\n\u003cli\u003ePrecision Manufacturing: Manufactured with tight tolerances to ensure consistent valve guide clearance and optimal valve stem support.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eConstruction \u0026amp; Design:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe valve guide is constructed from manganese bronze, a material chosen for its superior resistance to wear and heat compared to traditional cast iron guides. This alloy provides excellent thermal conductivity, helping to dissipate heat from the valve stem area and reduce the risk of premature valve or guide failure.\u003c\/p\u003e\u003cp\u003eIts 5.5mm stem bore is machined to exacting standards, ensuring a precise fit with the exhaust valve stem. This precision fit is critical for maintaining proper valve seating and minimizing valve stem vibration, which can lead to valve train noise and accelerated wear.\u003c\/p\u003e\u003cp\u003eSupertech’s manufacturing process emphasizes quality control and consistency, resulting in a valve guide that supports reliable engine operation even under demanding conditions.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eInstallation \u0026amp; Fitment:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis exhaust valve guide is a direct replacement part designed to fit the FA20D engine in the specified Toyota 86, Subaru BRZ, and Scion FR-S model years. It installs using standard procedures for valve guide replacement during cylinder head servicing or engine rebuilds.\u003c\/p\u003e\u003cp\u003eProfessional installation is recommended to ensure proper fitment and valve clearance. No modifications to the cylinder head or valve components are required when using this guide, maintaining factory specifications and performance.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eDirect fit for FA20D engine exhaust valves\u003c\/li\u003e\n\u003cli\u003eNo special machining or modification needed beyond standard valve guide replacement procedures\u003c\/li\u003e\n\u003cli\u003eCompatible with OEM valve stems and seals\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eWhat’s Included\u003c\/p\u003e\u003cul\u003e\u003cli\u003eOne manganese bronze exhaust valve guide with 5.5mm stem bore\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eIdeal For:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis valve guide is perfect for:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eEngine rebuilders and mechanics servicing the FA20D cylinder head\u003c\/li\u003e\n\u003cli\u003ePerformance enthusiasts maintaining or upgrading their Toyota 86, Subaru BRZ, or Scion FR-S\u003c\/li\u003e\n\u003cli\u003eAnyone seeking a durable, OEM-quality replacement for worn or damaged exhaust valve guides\u003c\/li\u003e\n\u003cli\u003eOwners focused on preserving engine reliability and valve train precision\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Supertech","offers":[{"title":"Default Title","offer_id":51255286464808,"sku":"GDE-TFRS55-E","price":8.89,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0717\/9744\/0808\/files\/0004499_af2ea50aef490ab8920ebcefd20c2e78_b69baf39-16fc-46a9-b3bc-33c4257f5d03.webp?v=1771585040","url":"https:\/\/fastscions.com\/products\/supertech-toyota-frs-subaru-brz-fa20d-manganese-bronze-exhaust-valve-guide-5-5mm-stem","provider":"FastScions","version":"1.0","type":"link"}