2024+ Mustang GT / Dark Horse Return Style Fuel System

Looking to make serious power with your 2024+ Mustang GT or Dark Horse? The Lethal Performance Return Style Fuel System is built to deliver. Designed in-house using proven DivisionX components, this system supports high horsepower applications and multiple fuel types, including E85, race fuel, and pump gas.

This complete return-style system was engineered specifically for the dual-fuel architecture (port and direct injection) of the 2024+ Coyote platform. It features dual fuel pressure regulators—one static (for DI), and one boost-referenced (for port)—for smooth, consistent delivery no matter your setup.

This kit is compatible with naturally aspirated builds, turbo kits (single or twin), Paxton, and ProCharger systems. It includes aftermarket DivisionX fuel rails for maximum flow and reliability.

Running a Whipple, Lethal Edition, Roush or VMP supercharger? You'll need our version specifically tailored for those intake manifolds. Check it out here.

• DivisionX Triple Pump Fuel Hat: Direct drop-in replacement that retains the OEM fuel level sender for accurate fuel gauge readings. Supports 2 or 3 fuel pumps.
• High-Flow DivisionX Fuel Rails: Designed specifically for the 2024+ intake manifold, finished in black anodizing.
• Dual Aeromotive Regulators: One static for consistent DI feed. One boost-referenced for precise port injector control under boost.
• Pre-Assembled Fragola PTFE Fuel Lines: These premium hoses resist ethanol corrosion, eliminate fuel smell, and feature a sleek black outer coating to prevent abrasion on surrounding components.
• Lethal Performance Triple Pump Wiring Harness (Standard): Includes 3 individually fused 40A relays, high-quality wires, and a fused main power lead for safe, simple, and reliable installation.

While the system comes standard with our tried-and-true triple pump wiring harness, serious builders looking for the next level in fuel management should consider upgrading to The Box—Lethal Performance’s advanced fuel pump controller.

The Box allows you to:

• Independently trigger all three pumps based on load, boost, RPM, or a Hobbs switch.
• Stagger pump activation for better drivability and reduced current draw during low-demand conditions.
• Easily integrate with standalone ECUs or advanced control strategies.

This is the ultimate solution for maximizing fuel system performance on high-boost, high-horsepower applications. Not required—but highly recommended for serious builds or triple pump setups. Learn more

• DivisionX Triple Pump Fuel Hat (2024+ Mustang GT/DH)
• DivisionX High Flow Fuel Rails (Black Anodized)
• (2) Walbro F90000267 465LPH E85-Compatible Fuel Pumps
  (Optional: add a third pump for extreme builds)
• DivisionX High Flow Inline Fuel Filter (stainless or washable element)
• Lethal Performance Return Style Triple Pump Wiring Harness
• (2) DivisionX 13143 Dual-Port Extreme Flow Fuel Pressure Regulators
• Fragola PTFE Lined Black Coated Hose Kit
• Fragola Fittings, Vacuum Hose, Loom Clamps, Zip Ties, T-Fitting & Mounting Hardware

• Works with stock intake manifold.
• Not compatible with Whipple, Roush or VMP setups — please use the dedicated version for those applications.
• Turbo/supercharged setups may require slight customization of bracketry or routing.

Whether you're chasing four-digit power or just future-proofing your build for ethanol and boost, the Lethal Performance return-style system delivers reliable fueling and track-tested performance.

Looking for instructions? Click here.