Shop AEM by Product Category
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Engine Management
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Digital Dashes
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Electric Vehicles - EV
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Fuel Filters
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Fuel Injection
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Fuel Pressure Regulators & Dampers
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Fuel Pumps
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Electrical Connectors
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Ignition Coils
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Fuses, Relays & Switches
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Sensors & Modules
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Switches
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Oxygen Sensors and Fittings
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Timing Chains, Belts & Gears
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Air & Fuel Ratio
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Boost & Vacuum
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Exhaust Gas Temperature & Pressure
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OBD II
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Oil Pressure
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Speedometers
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Temperature
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Voltage
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Gauge Accessories
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Lifestyle, Clothing & Memorabilia
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Water & Methanol Injection
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Master Cylinders & Brake Boosters
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Shocks, Struts & Coilovers
FUEL SYSTEM DESIGN - Return-Style Fuel System:

- Preferred style for performance applications
- Mitigates issues like picking up air in the system
- Avoids vaporlock
- Seriously, use this design!
FUEL SYSTEM DESIGN - Return-less (Dead Head) Fuel System:
- Typically found in modern OE applications
- Easier packaging
- Generally lower cost
- Susceptible to vapor lock
- Air past the regulator must pass through injectors
- Not recommended for most performance applications
