AEM 25-302BK Fuel Pressure Regulator – Key Features & Functions
Adjustable Fuel Pressure Control
Precision tuning capability:
- Fine-tune fuel pressure to match your setup
- Optimize AFR for performance and safety
- Adapt to different injectors and fuel systems
Because no two builds are the same.
AEM 25-302BK Black Prime Volume Adjustable Fuel Pressure Regulator
High Volume Fuel Flow Design
Built for serious power:
- Supports high-horsepower applications
- Maintains flow without restriction
- Ideal for upgraded fuel systems
Because your stock regulator wasn’t designed for boost.
Model: 25-302BK
Inlet: 2 x -6AN (nine/sixteen-18), Outlet: -6AN, Gauge Port: 1/8 in. NPT
Boost-Referenced Operation
Critical for forced induction:
- Increases fuel pressure with boost
- Maintains proper fuel delivery under load
- Prevents lean conditions
Because boost without fuel is just a failure waiting to happen.
Fuel float toughen: As much as 1000 HP
Patented interchangeable discharge ports for matching any fuel pump output
Stable & Consistent Pressure Output
Reliability you need:
- Eliminates pressure fluctuations
- Ensures smooth fuel delivery
- Improves injector performance
Consistency is what keeps engines alive.
CNC-machined from 6061-T6 billet aluminum
Spice up dependent emerging fuel pressure rate (1:1)
Durable Black Anodized Finish
Performance and style:
- Corrosion-resistant coating
- Sleek black finish for clean engine bays
- Built for long-term durability
Because it should look as good as it performs.
Universal Performance Fitment
Flexible installation:
- Compatible with most aftermarket fuel systems
- Works with upgraded fuel rails
- Ideal for custom builds
Because your setup isn’t stock—and shouldn’t be treated like it is.
Adjustable fuel pressure from 20 psi to most fuel pump capability
Why You Need This AEM 25-302BK Fuel Pressure Regulator
If you’re increasing power, upgrading injectors, or running boost, this is a must-have.
The AEM 25-302BK Fuel Pressure Regulator gives you:
- Precise, adjustable fuel pressure control
- Stable fuel delivery under boost and load
- Improved engine safety and tuning accuracy
- Support for high-horsepower and E85 setups
Because controlled fuel delivery is the foundation of reliable power.
Ideal Applications
- Turbocharged builds
- Supercharged setups
- High-horsepower NA builds
- E85 and flex-fuel systems
- Standalone ECU setups
Final Verdict
The AEM 25-302BK High Volume Adjustable Fuel Pressure Regulator is a critical upgrade for any serious performance build.
It ensures your fuel system keeps up with your power goals—without compromise.
Because power is easy. Controlled power is what lasts.
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