





Stanadyne
Stanadyne RGX 12mm LT2 High Pressure Fuel Pump
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Stanadyne RGX 12mm LT2 High Pressure Fuel Pump
Stanadyne’s RGX represents the pinnacle of race-focused fuel system engineering. Unlike modified OE pumps, it’s purpose-built to deliver the extreme pressure, flow, and durability modern high-horsepower engines demand. For builders, tuners, and race teams, the RGX pump provides the foundation to unlock the next level of performance.
Performance & Compatibility
- Dyno-proven high-horsepower performance
- Supports 800-1,400+ horsepower builds
Advanced Fuel Delivery Technology
- Improved Goliath large-plunger architecture
- 12mm plunger, high-lift pump design
- 50% more volume than SP1250 pumps
- 22% more volume than SP1550 pumps
- Finite element-validated structural design
Internal Pressure Relief Valve
- Prevents over-pressurization of the fuel system
- Fail safe for high volume, high pressure applications
GX Key Design Enhancements
- Redesigned lower assembly’s updated architecture supports high-load, high-speed operation
- Upgraded spring system engineered for stability at high lift and speed (up to 8.2 mm)
- Spring operates at optimal engineered load to prevent overloading and insufficient preload
- Optimized retention system secures the spring for robustness with precision alignment
- Improved packaging for LT2 applications with adjusted inlet orientation for seamless fitment
- Clear specifications for inlet pressure and flow ensure pump delivers its full high-flow capability
- Optimized discharge passages increase efficiency and maximize fuel delivery at WOT, supporting full engine performance potential
Installation instructions can be found by clicking here.
Features
Warranty Information
Warranty only applies to the original purchaser. It does not transfer to new owners.
Manufacturers Warranty (If Applicable) *Terms Apply*VEHICLE FITMENT INFORMATION
- Model Year
- 2020 - 2026
- Sub-Model
- C8 StingrayC8 E-Ray
- Body Style
- CoupeHTC (Hard Top Convertible)
FAQ
Utilize the Vehicle Fitment Verifier just below the "Add to Cart" button to input your year, make, model and body type.
Yes, we ship all over the world. Shipping costs will apply, and will be added at checkout. We run discounts and promotions all year, so stay tuned for exclusive deals.
It depends on where you are. Orders processed here will take 5-7 business days to arrive. Overseas deliveries can take anywhere from 7-16 days. Delivery details will be provided in your confirmation email.
You can contact us through our contact page! We will be happy to assist you.


