Modern BMW turbo platforms have changed expectations for performance.

The S58 and Gen2 B58 engines found across today’s G chassis lineup are capable of producing massive gains with surprisingly few modifications. Intakes, downpipes, tuning, and upgraded turbochargers can unlock power levels that once required complete engine builds.

But eventually, every high-horsepower setup runs into the same question:

Can the fuel system keep up?

That’s exactly where the Burger Motorsports Stage 3 LPFP Upgrade Kit comes in.

Now available at XPH, this fuel system upgrade was developed for serious S58 and Gen2 B58 builds requiring substantially more low-pressure fuel delivery than the factory system was designed to provide.

Power Goals Mean Nothing Without Fuel Supply

Horsepower is ultimately limited by one thing: available fuel.

As boost pressure rises and airflow increases, the engine requires significantly more fuel volume to maintain proper operation. Eventually, the factory low-pressure fuel system reaches its limit—even before many enthusiasts finish the rest of their build.

The BMS Stage 3 LPFP Upgrade Kit addresses this limitation by adding a secondary Walbro fuel pump to dramatically increase available fuel flow.

Depending on configuration:

• Walbro 450 setup supports up to 900 WHP
• Walbro 525 setup supports up to 1100 WHP

That level of fueling opens the door for larger turbos, aggressive calibrations, ethanol blends, and future performance expansion.

Built to Increase Capacity Without Sacrificing Factory Safeguards

Many fuel upgrades chase maximum flow but overlook the importance of maintaining factory system protections.

Burger Motorsports approached the Stage 3 LPFP differently.

Rather than replacing critical fuel management components entirely, the system preserves operation of the factory direct injection fuel filter and low-pressure regulator.

That means:

• Continued injector protection from contamination
• More stable fuel control characteristics
• Reduced likelihood of excessive fuel pressure
• Better compatibility with factory fuel system architecture

For builders investing heavily into S58 and B58 platforms, protecting expensive direct injection components becomes just as important as increasing fuel delivery.

Flexible Integration for Every Type of Build

No two high-power BMW builds are exactly alike.

That’s why the BMS Stage 3 LPFP supports multiple activation and control strategies depending on how the vehicle is configured.

Compatible options include:

• ReFlex fuel control systems
• CANfuel controllers
• JB4PRO controllers
• Boost-triggered Hobbs switch activation

This flexibility allows the fuel system to scale with your goals rather than forcing a one-size-fits-all solution.

Serious Fueling Without a Complex Installation

High-end performance parts often carry the expectation of complicated installation.

The BMS Stage 3 LPFP takes a different approach.

The complete kit was developed as a DIY-friendly upgrade and can typically be installed in under an hour using standard tools.

Features include:

• Secondary Walbro fuel pump integration
• Supports up to 900–1100 WHP depending on configuration
• Retains factory fuel filter operation
• Retains factory low-pressure regulator operation
• Flexible activation options
• Designed specifically for S58 and Gen2 B58 applications
• Complete installation package

This makes it one of the most approachable ways to dramatically expand fueling capability.

Designed for Today’s Most Popular BMW Platforms

The Stage 3 LPFP Upgrade Kit supports a wide range of BMW G chassis applications including:

• G42 M240i
• G20/G21 M340i
• G22/G23/G26 M440i
• G30 540i
• G87 M2
• G80 M3 / M3 Competition
• G82/G83 M4 lineup including CSL
• F97 X3M
• F98 X4M

Whether your goal is a responsive street setup or a four-digit horsepower build, fueling becomes one of the most important supporting modifications you can make.

Available Now at XPH

If your S58 or Gen2 B58 build is reaching the limits of the factory fuel system, adding more boost isn’t the answer—adding more fuel is.

The Burger Motorsports Stage 3 LPFP Upgrade Kit provides the flow capacity, flexibility, and protection needed to support serious horsepower targets while preserving key factory functionality.

Shop the Burger Motorsports Stage 3 LPFP Upgrade Kit today at XPH: https://x-ph.com/burger-tuning-bms-s58-b58-bmw-stage-3-lpfp-upgrade-kit-for-g-chassis-bmw/