Great news – on this purchase, you'll enjoy a BuildBUX bonus of $0.19.
Regular Price: $22.48 - Instant discount: $3.37 = $19.11
Product Fitment:
2013 Subaru BRZ
2013 Scion FR-S
These GSC Power-Division Exhaust Valves are built to handle the extreme heat and stress of high-performance FA20 engines. Designed specifically for 2013 BRZ, FR-S, and 86 models, they feature a swirl-polished, back-cut head for maximum flow, and are crafted from a modified 23-8N stainless alloy for excellent durability at elevated exhaust gas temperatures.
Ideal for turbocharged, supercharged, or high-compression N/A builds, these valves are flow-bench tested and optimized for minimal distortion, ensuring a consistent, reliable seal even under aggressive cam profiles and high RPM.
Stem Diameter: 5.5mm
Overall Length: 103.25mm
Head Diameter: 35.00mm
Material: Modified 23-8N Stainless (Exhaust Valve Specific)
Swirl-Polished Heads – Increases exhaust flow efficiency
Back-Cut Design – Reduces mass, supports high RPM stability
Micro-Polished Stems – Reduces friction, improves valve motion
Stellite-Tipped or Hardened Ends – Ensures longevity under high stress
Precision Keeper Groove & Tip Heights – Simplifies installation and improves geometry
OEM or Upgraded Lock Compatible – Recommended to use new locks for performance builds
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