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SKU: 3147-6
GSC 2023+ Toyota GR Corolla G16E STD Manganese Bronze Exhaust Valve Guide Stopper Style - Set of 6
Upgrade the valvetrain in your 2023+ Toyota GR Corolla G16E-GTS engine with these GSC Power-Division manganese bronze exhaust valve guides. This stopper style set of 6 matches OEM dimensions for direct replacement on all exhaust valves. They deliver reliable wear protection and stability during high-revving track or street use.
Key Features
- Manganese Bronze Material: Resists wear and dissipates heat effectively in performance G16E engines
- Stopper Style Design: Locks guides in place to prevent rotation and maintain alignment under load
- STD Sizing: Outer diameter 11.000mm, inner 7.980mm, length 56.00mm for exact OEM fit
- Complete Set of 6: Covers every exhaust valve for full engine rebuild or maintenance
- Precision Machined: Ensures proper valve stem seal and oil control for consistent power
Product Notes
- Confirm G16E-GTS engine code before purchase
- Use with matching GSC intake guides for balanced valvetrain
- Packaged securely to prevent damage during transit
Installation Notes
- Professional installation recommended.
- Valve guides require cylinder head removal and freeze plug method for pressing
- Compatible with stock Toyota heads and GSC performance heads
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2023-2025 | Toyota | GR Corolla | Core |
| 2023-2025 | Toyota | GR Corolla | Circuit |
| 2023-2025 | Toyota | GR Corolla | Morizo Edition |
Why Choose GSC Power-Division?
- Proven in grassroots racing and OEM-level quality
- Focus on durable materials for long engine life
- Engineered for direct bolt-on reliability
Frequently Asked Questions
-
Q: Will this fit my 2024 GR Corolla G16E-GTS?
A: Yes, these guides are direct fit for all 2023+ GR Corolla models with G16E-GTS engine, no modifications needed -
Q: What is the material and why manganese bronze?
A: Manganese bronze provides high strength, corrosion resistance, and thermal conductivity ideal for exhaust side heat exposure -
Q: What warranty comes with these guides?
A: Backed by GSC Power-Division limited lifetime warranty against manufacturing defects when installed properly
Shipping & Handling
- Method: UPS Ground or USPS Priority
- Availability: In stock - ships same or next business day
- Packaging: Compact box measuring 6 x 4 x 2 inches
- Weight: 0.3 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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