GSC Power Division FA20 Exhaust Valve Set
2017–2020 Toyota 86 / 2013–2020 Subaru BRZ / 2013–2016 Scion FR-S
2133-8
Overview:
The GSC Power Division FA20 Exhaust Valve Set is a precision-engineered upgrade designed specifically for the FA20 engine found in the Toyota 86 (2017–2020), Subaru BRZ (2013–2020), and Scion FR-S (2013–2016). Crafted from high-quality 23-8N stainless alloy, these valves feature a +1mm (30mm) size increase over stock, enhancing exhaust flow and durability.
This valve set is ideal for enthusiasts seeking improved engine breathing and reliability, especially those who have modified their exhaust or are pursuing higher performance levels. By upgrading your exhaust valves, you’ll support better throttle response and maintain optimal valve operation under increased stress.
Key Features:
Designed with performance and longevity in mind, the GSC Power Division exhaust valves offer several key benefits:
- Constructed from 23-8N stainless alloy for superior strength and corrosion resistance compared to standard steel valves.
- +1mm valve size (30mm) increases exhaust flow capacity, helping to reduce backpressure and improve engine efficiency.
- Precision manufacturing ensures exact fitment and reliable sealing within the FA20 cylinder head.
- Ideal for naturally aspirated and forced induction setups, supporting increased horsepower and torque demands.
- Enhances durability under high RPM and elevated exhaust temperatures common in spirited driving and track use.
- Direct replacement for factory exhaust valves, maintaining OEM compatibility and valve train geometry.
Construction & Design:
The exhaust valves are crafted from premium 23-8N stainless alloy, a material known for its excellent heat resistance and mechanical strength. This alloy choice helps prevent valve wear and deformation during prolonged high-temperature operation. The +1mm valve diameter is carefully engineered to optimize exhaust gas evacuation without compromising valve seat integrity or engine reliability.
Each valve undergoes precise machining and quality control to ensure smooth valve face seating and consistent performance. This attention to detail supports improved combustion efficiency and helps maintain engine longevity even under demanding conditions.
Installation & Fitment:
The GSC Power Division FA20 Exhaust Valve Set is designed as a direct bolt-in replacement for the factory exhaust valves on compatible vehicles. Installation requires standard engine disassembly procedures for valve replacement but does not necessitate any modifications to the cylinder head or valve train components.
- Fits 2017–2020 Toyota 86, 2013–2020 Subaru BRZ, and 2013–2016 Scion FR-S equipped with the FA20 engine.
- No cutting, drilling, or special tuning is required for installation.
- Compatible with stock and aftermarket valve springs and retainers designed for the FA20 platform.
What’s Included
- Set of exhaust valves sized +1mm (30mm) for FA20 engines
- Manufacturing and quality assurance documentation
Ideal For:
This exhaust valve set is perfect for:
- Performance enthusiasts upgrading their FA20-powered Toyota 86, Subaru BRZ, or Scion FR-S
- Drivers seeking enhanced exhaust flow and improved throttle response
- Track day participants and spirited street drivers demanding reliable valve operation at high RPM
- Those performing engine rebuilds or upgrades requiring durable, high-quality valve components
