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SKU: 2134-8
GSC P-D 2013+ BRZ/FR-S/Toyota 86 FA20 Intake Valve Set +1mm (36mm) 21-4N Stainless Alloy (Set of 8)
GSC Power-Division intake valves feature a +1mm (36mm) head diameter and 21-4N stainless alloy construction. These valves fit 2013+ Subaru BRZ Scion FR-S and Toyota 86 models equipped with the FA20 engine. The set of 8 delivers higher airflow volumes and withstands demanding conditions for track or street builds.
Key Features
- +1mm Head Diameter (36mm): Allows greater intake flow over stock 35mm valves to support increased horsepower and RPM.
- 21-4N Stainless Alloy: Forged material resists fatigue wear and maintains shape under high heat and boost pressures.
- Precision CNC Machining: Ensures exact dimensions with 5.965mm stem diameter and 104.88mm length for drop-in compatibility after machining.
- One-Piece Forged Design: Reduces failure risk with stronger structure than welded alternatives.
- Complete Set of 8: Provides all intake valves needed for full FA20 engine refresh or upgrade.
Product Notes
- Valve seat machining required for proper +1mm oversize fit.
- Inspect valve springs and retainers for compatibility during install.
- Packaged securely to prevent damage in transit.
Installation Notes
- Professional installation recommended.
- Head requires cutting for 36mm valve head and 30mm seat diameter.
- Works with stock retainers or GSC valve springs and Ti retainers.
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2013-2016 | Scion | FR-S | All |
| 2013-2021 | Subaru | BRZ | All |
| 2017-2020 | Toyota | 86 | All |
Why Choose GSC Power-Division?
- Proven in racing engines from drag to road course.
- Manufactured with tight tolerances in the USA.
- Engineered for boosted and high-revving FA20 applications.
Frequently Asked Questions
-
Q: Will this fit 2013 Scion FR-S models?
A: Yes fits all 2013+ FA20-equipped Scion FR-S Subaru BRZ and Toyota 86 without engine code changes. -
Q: Why 21-4N stainless for intake valves?
A: This alloy offers superior heat resistance and durability for performance levels beyond stock including turbo setups. -
Q: What is the warranty coverage?
A: Backed by GSC 1-year unlimited mileage warranty against manufacturing defects.
Shipping & Handling
- Method: UPS Ground or USPS Priority
- Availability: In stock - ships same or next business day
- Packaging: Sturdy custom box 6 x 4 x 2 inches
- Weight: 1.0 lbs
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