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GSC Exhaust Valve Guide Stopper Style +.003" Standard (Subaru FA20 WRX / BRZ) GSC3105.003-1

GSC Power Division Exhaust Valve Guide Stopper Style, +.003" Standard (Subaru FA20 WRX / BRZ) - GSC3105.003-1

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Item#:
gsc3105.003-1
$6.71
Price: $5.70
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GSC +.003" Stopper Style Exhaust Valve Guide – Subaru FA20 WRX / BRZ (GSC3105.003-1)

Oversized Exhaust Valve Guide for FA20 Engines

The GSC Power-Division +.003" Stopper Style Exhaust Valve Guide is precision-engineered for Subaru FA20 engines used in WRX and BRZ platforms. Its stopper-style design ensures secure valve seating and enhanced durability, especially in cylinder heads that have been reworked or show wear.

Sold Individually – Oversized +.003"

This listing includes one +.003" oversized exhaust valve guide. Standard size and +.001" oversized options are also available. Sets of 8 can be purchased separately for full head service.

Technical Specifications

  • Part Number: GSC3105.003-1
  • 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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