UPGRATED LPFP RS3 8Y TTRS 8S 2.5 TFSI UP TO 1300HP DAZA DNW

RTMG Performance Dual LPFP Upgrade Kit for Audi RS3 8Y & TTRS 8S

The Ultimate Low-Pressure Fuel System Upgrade for High-Power EA855 Applications

The RTMG Performance Dual LPFP Upgrade Kit has been engineered specifically for the Audi RS3 8Y and Audi TTRS 8S platforms, providing a complete low-pressure fuel supply solution capable of supporting up to 1300 HP.

Unlike basic pump upgrades, this kit is a complete fuel delivery system designed, tested, and installed in-house on our own high-horsepower vehicles. Every component has been selected to ensure maximum reliability, fuel flow capacity, OEM-like drivability, and future expandability.

Key Features

• Supports up to 1300 HP
• Utilizes the factory brushless fuel pump for daily driving operation
• Secondary Walbro 450 fuel pump for additional fuel demand under boost
• Complete plug-and-play fuel basket upgrade
• CNC-machined billet aluminum pump mounts
• Hard anodized finish for maximum durability and corrosion resistance
• AN8 fuel feed outlets and hose kit 
• High-flow fuel lines and fittings included
• High-flow fuel filter included
• Integrated fuel pressure relief system
• Fully compatible with Start/Stop operation
• Designed to supply both the factory direct injection system and additional port injection setups

Advanced Dual-Pump Strategy

The factory brushless fuel pump remains fully operational and continues to handle normal driving conditions using the OEM fuel controller.

The secondary Walbro 450 pump is controlled independently by the RTMG Performance Fuel Controller. This intelligent strategy offers significant advantages over traditional dual-pump systems:

• Secondary pump only activates when additional fuel flow is required
• Reduced fuel temperature during normal driving
• Lower electrical load on the charging system
• Extended fuel pump lifespan
• OEM-like drivability and noise levels
• Improved fuel efficiency during cruising

Pump activation pressure is user-adjustable through the RTMG controller and can be configured to engage at the desired boost level, typically around 1–2 bar depending on the application.

Fuel Flow Architecture

The system features dual fuel outputs from the upgraded fuel basket, feeding through AN8 lines into a high-flow check valve assembly.

This configuration maintains proper fuel pressure retention and preserves full Start/Stop functionality while ensuring unrestricted fuel delivery under extreme load conditions.

Fuel then flows through the supplied high-flow fuel filter and forward to the high-pressure fuel pump.

For customers running supplemental port injection systems, the kit provides sufficient capacity to support an additional set of low-pressure injectors without compromising direct injection fuel supply.

Billet Fuel Basket Components

The fuel pump mounting system is manufactured from aerospace-grade billet aluminum and precisely machined to fit the factory fuel basket.

Benefits include:

• Superior strength compared to plastic adapters
• Precise pump positioning
• Maximum reliability under high vibration and high G-force conditions
• Long-term resistance to ethanol-based fuels
• Professional OEM-quality fit and finish

Integrated Fuel Pressure Management

An integrated fuel pressure relief valve is incorporated into the upper fuel rail assembly.

Standard pressure setting:

• 6.7 Bar Fuel Pressure

Optional configurations:

• Lower pressure settings available upon request
• Up to +0.5 Bar increase available for specialized applications

This system ensures stable fuel pressure, protects components from excessive pressure spikes, and maintains consistent fuel delivery across the entire operating range.

Why Choose the RTMG Performance Dual LPFP Kit?

More Power Capacity

Supports fuel demands for builds producing up to 1300 HP.

OEM Drivability

Factory pump handles everyday driving while the secondary pump only activates when necessary.

Future-Proof Design

Capable of supporting large-frame turbochargers, ethanol fuels, and additional port injection systems.

Reduced Fuel Heating

Unlike systems where both pumps run continuously, the RTMG controller activates the second pump only when required.

Complete Solution

Includes pumps, fittings, fuel lines, filter, check valve system, billet mounting hardware, and controller integration.

Developed on Real High-Horsepower Cars

Designed and validated through RTMG Performance's own development vehicles and customer installations.

Perfect For

• Audi RS3 8Y
• Audi TTRS 8S
• E85 Builds
• Hybrid Turbo Setups
• Precision Turbo Conversions
• 900–1300 HP Applications on gasoline 
• Drag Racing
• Roll Racing
• Street Performance Vehicles

RTMG Performance – Engineered for serious horsepower without sacrificing drivability.