GSC +.001" Stopper Style Exhaust Valve Guide – Subaru FA20 WRX / BRZ (GSC3105.001-1)
Oversized Exhaust Valve Guide for FA20 Engines
The GSC Power-Division +.001" Stopper Style Exhaust Valve Guide is built for Subaru FA20 engines found in WRX and BRZ platforms. Featuring a stopper-style design, this guide offers enhanced valve stability and precise fitment for high-performance or rebuilt cylinder heads.
Sold Individually – Oversized +.001"
This listing includes one +.001" oversized exhaust valve guide. Standard size and +.003" oversized options are also available. Sets of 8 can be purchased separately for full head service.
Technical Specifications
- Part Number: GSC3105.001-1
- Total Length: 1.456" / 36.98mm
- Outer Diameter: 0.3964" / 10.07mm
- Valve Stem Diameter: 5.5mm
Fitment Guide
- 2015–2021 Subaru WRX 2.0L Turbo (FA20DIT)
- 2013–2020 Subaru BRZ 2.0L NA (FA20)
- 2013–2020 Scion FR-S / Toyota 86 2.0L NA (FA20)
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