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SKU: B3105
GSC P-D Subaru FA20/BRZ (STD) Stopper Exhaust Valve Guide - Set of 80 2013-2021
GSC Power-Division stopper exhaust valve guides B3105 deliver reliable performance for Subaru FA20 engines in BRZ FR-S and 86 models. This set of 80 standard size guides installs directly into FA20 cylinder heads to support exhaust valves under high RPM stress. Engine builders choose these guides for extended valve train life and consistent sealing in modified setups.
Key Features
- Stopper Design: Locks guides in place to eliminate rotation wear and maintain head integrity during aggressive driving.
- Manganese Bronze Material: Provides superior heat dissipation and strength for sustained high temperature operation.
- Standard Sizing: Matches OEM dimensions for Subaru FA20 exhaust valves ensuring drop-in compatibility without machining.
- Set of 80 Pieces: Supplies full coverage for ten FA20 engines ideal for shops or multiple rebuilds.
- Precision Machining: Tight tolerances deliver optimal valve stem clearance and oil flow for reduced friction.
Product Notes
- Clearance item limited stock verify availability before ordering.
- Inspect cylinder head condition prior to installation for best results.
- Special order processing may add 1-2 business days to fulfillment.
Installation Notes
- Professional installation recommended.
- Valve guide driver tool required for press fit installation.
- Compatible with stock and ported FA20 cylinder heads no modifications needed.
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2013-2020 | Subaru | BRZ | All |
| 2013-2016 | Scion | FR-S | All |
| 2017-2020 | Toyota | 86 | All |
| 2015-2021 | Subaru | WRX STI | FA20F |
Why Choose GSC Power-Division?
- Motorsport proven components trusted by racers worldwide.
- USA manufactured for consistent quality control.
- Engineered for direct replacement with performance gains.
Frequently Asked Questions
-
Q: Will these fit 2015-2021 Subaru WRX STI?
A: Yes designed specifically for FA20F engines in WRX STI models including base and performance variants. -
Q: What material are the guides made from?
A: High grade manganese bronze offers excellent wear resistance and thermal conductivity for exhaust side durability. -
Q: Is a warranty included?
A: GSC provides manufacturer defect coverage contact support for claims with proof of proper installation.
Shipping & Handling
- Method: UPS Ground
- Availability: In stock - ships same or next business day
- Packaging: Secure box 6x4x2 inches
- Weight: 1.5 lbs
GSC Power Division
GSC Power Division is a manufacturer of precision-engineered camshafts, valve springs, and valvetrain components designed for high-performance and competition engines across domestic, import, and diesel platforms. Founded by engineers with deep roots in motorsport, GSC Power Division components are machined to exacting tolerances and heat-treated to survive the demands of forced induction and high-rpm applications that destroy stock valvetrain parts. The brand is particularly well-known in the Mitsubishi Evo, Subaru STI, Nissan RB, and Toyota 2JZ communities where aggressive camshaft profiles are essential for extracting maximum power from turbocharged four-cylinder and six-cylinder engines. Whether building for drag racing, road course competition, or a high-powered street car, GSC Power Division camshafts and valve springs are a proven upgrade path. Popular Upgrades GSC Power Division S1, S2, and S3 camshafts are the most popular selections, with each profile offering progressivel...
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