Didn’t get to select L or R side when ordering.
Didn’t get to select L or R side when ordering.
The hose and fittings are nice quality. Their ability to get stuff shipped out quickly dose not happen.
It took a week to get my order to shipping.
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Corvette style filter/regulator with built-in AN6 adapter fittings
$79.99
Reliable shipping
Flexible returns
Corvette Style Fuel Filter & Pressure Regulator — Built-In AN-6 Fittings (58 PSI)
Return-less LS swap plumbing made simple. Built-in AN-6 males on IN, OUT, and RETURN for a clean, leak-free install with PTFE hose.
Upgrade your EFI fuel system with an OEM-style C5 filter/regulator tuned to a stable 58 PSI. This combo simplifies plumbing for return-less LS fuel rails, reduces parts count, and delivers consistent pressure for reliable starts and smooth fueling.
Why this filter/regulator
- Built-in AN-6 fittings: Male AN-6 on all three ports — no EFI quick-connect adapters required.
- LS-swap ready: Purpose-built for return-less LS systems (LS1/LS6/Gen III/IV).
- Stable pressure: Fixed 58 PSI output for modern EFI.
- Clean routing: Mount near the tank; single feed line to the rail, return handled at the unit.
- Correct filtration: Use ≤10 µm on the pressure side for EFI longevity.
Quick diagram (return-less layout)
[Tank] ──> (In-tank Pump) ──> IN on C5 Filter/Reg (58 PSI) ──> OUT to fuel rail
└── RETURN back to tank
Specs
| Pressure | 58 PSI (fixed) |
|---|---|
| Ports | AN-6 male — IN / OUT / RETURN |
| Filtration | Fine filtration; plan for ≤10 µm on the pressure side for EFI |
| Fuel | Pump gas ready; for ethanol blends use PTFE hose throughout and confirm regulator element compatibility |
| Flow guidance | Typical swaps with ~255 LPH pumps are supported. Very high flow (340+ LPH) or boosted builds may require a high-flow return-style regulator up front. |
What it solves
- Eliminates engine-bay return line on LS swaps
- Removes guesswork on pressure (set 58 PSI)
- Cleans up plumbing with AN-6 male ports
Recommended add-ons
Install notes
- Mount the unit near the tank on the frame rail (observe flow arrow).
- Plumb Pump → IN (AN-6), OUT → Rail (AN-6), and RETURN → Tank (AN-6).
- Use PTFE AN hose for pump gas/E85 and zero-odor garages. Seat olives squarely; tighten with AN wrenches.
- Prime the system, then confirm ~58 PSI at the rail using the gauge/pressure-port adapter.
FAQs
Is this return-less or return-style?
Return-less at the rail. One feed line to the engine; excess fuel is returned at the filter/regulator’s RETURN port.
Do I need EFI quick-connect adapters?
No. This version has AN-6 male on all ports. If your rail or pump uses quick-connects, use QC→AN adapters on those components only.
What micron filter should I run?
Pressure-side EFI filtration should be ≤10 µm. This combo provides fine filtration; if you switch to a separate regulator, add a ≤10 µm post-pump filter.
How much flow can it support?
Typical swaps using pumps around ~255 LPH are supported. Very high flow pumps (340+ LPH) or boosted builds often need a high-flow return-style regulator up front.