1 3

Corvette style filter/regulator with built-in AN6 adapter fittings

Corvette style filter/regulator with built-in AN6 adapter fittings

$79.99 USD
$79.99 USD
Sale Sold out
Shipping calculated at checkout.

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

Tip: Mount on the frame rail near the tank, away from heat. Keep the return short.

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

Read the full plumbing guide →

Recommended add-ons

Return-less LS AN Fuel Line Kit

Pre-matched hose & ends for this exact layout

PTFE Hose Bundles (AN-6 / AN-8)

PTFE liner with stainless-steel braid; nylon-jacket option

Gauge / Pressure-Port AN Adapter

Verify ~58 PSI at the rail (KOEO)

P-Clamps & Hose Mounts

Secure lines every 18–24" to prevent chafe

Tool Bundle: Wrench + Vice Jaws + Cutters

Wrap the cut area with tape before shears to control fray

EFI Fuel Pumps

Choose flow to match your power goal

Install notes

  1. Mount the unit near the tank on the frame rail (observe flow arrow).
  2. Plumb Pump → IN (AN-6), OUT → Rail (AN-6), and RETURN → Tank (AN-6).
  3. Use PTFE AN hose for pump gas/E85 and zero-odor garages. Seat olives squarely; tighten with AN wrenches.
  4. Prime the system, then confirm ~58 PSI at the rail using the gauge/pressure-port adapter.

Need how-to detail? See our installation instructions.

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.
View full details