Original product photos supplied by TheFuelingSolution. Tap the main image to enlarge.
Does NOT include a replacement OEM LPFP. Uses your existing factory pump.
*Advertised horsepower capability is not independently verified. Actual results depend on fuel, pressure, electrical supply, tune and supporting modifications. Confirm fitment before ordering.
Purpose-built low-pressure fuel systems for enthusiasts who demand more. OEM-integrated designs, upgraded Walbro 525 pumps, and the fuel delivery your build deserves.
From a capable street car to a high-horsepower build, choose the kit that fits your goals. Stage 1 product photos are real, unedited photos of the supplied assembly, installation and controller.
Does NOT include a new OEM LPFP — add-on parts only.
Does NOT include a new OEM LPFP — add-on parts only.
Explore the dual-pump assembly, wiring, controller, and in-tank installation. Photos supplied by TheFuelingSolution.
A closer look at the single Walbro 525 setup, OEM-style integration, fuel plumbing and custom controller. These are the original product photos, without edits.
*Horsepower figures are advertised capability targets from the supplied product graphic, not independently verified test results. Actual performance depends on fuel, pressure, tuning, wiring, and supporting modifications. Verify fitment and specifications before purchase.
Two approaches to upgrading the Audi C7 4.0T low-pressure fuel system. Compare the included hardware and choose what fits your build.
| FEATURE | DAILY DRIVER | STAGE 1 |
|---|---|---|
| Starting price | $950 | $1,500 |
| Additional pumps | 1 × Walbro 525 | 2 × Walbro 525 |
| Advertised capability* | 750 HP | 1,200+ HP |
| Fuel pump controller | Included | Included |
| OEM LPFP | Reuse existing — not included | Reuse existing — not included |
| Fuel pressure regulator | Retains factory regulator | Adjustable regulator included |
| Fuel lines | Retains factory line | Optional -8AN upgrade (+$100) |
| Inline fuel filter | Not listed | Optional (+$100) |
| Port injection | Confirm build requirements | Advertised as compatible |
| HOBB switch | Not required per kit description | Not required per kit description |
*HP figures are advertised estimates, not verified flow-test guarantees. Actual support depends on fuel composition, rail pressure, pump voltage, wiring, engine configuration and tune. Confirm compatibility before ordering.
Explore modeled Stage 1 output with your factory Audi S6 LPFP plus two Walbro 525 pumps on full E85. Switch between 600 and 700 kPa and adjust assumed engine fuel consumption.
Formula: LPH × 0.264172 gal/L × 6.6 lb/gal ÷ BSFC = theoretical crank HP. Headroom value = theoretical HP × 0.85. This estimates low-pressure fuel volume only; it does not establish injector, high-pressure pump, regulator, or complete engine fueling capacity.
690 and 610 LPH are provisional illustrative assumptions, not verified pump-curve measurements. Combined pump flow cannot be reliably established by simply adding individual pump ratings. Real results depend on actual pump differential pressure, voltage, E85 blend and temperature, stock pump output, tank plumbing, pressure regulator and restrictions. Do not use these values as guaranteed horsepower ratings or tuning limits.
The key details to know about the kits, installation and choosing the right setup.
No. Both kits are add-on packages designed to reuse your existing OEM low-pressure fuel pump. A replacement factory pump is not included.
Daily Driver adds one Walbro 525 pump and retains the factory regulator and line. Stage 1 adds two Walbro 525 pumps and an adjustable regulator, with optional -8AN lines and inline filtration.
Fuel compatibility and safe operating limits depend on the exact pump variant, hoses, seals, regulator and other components. Confirm the components and intended ethanol blend with us before ordering. Flow and horsepower support will also change with pressure and fuel type.
These packages are presented for the Audi C7 4.0T platform. Exact fitment can vary by model year, tank assembly and modifications. Confirm your vehicle and existing LPFP assembly before purchasing.
According to the current kit descriptions, neither package requires a HOBB switch. Proper wiring and controller integration are still important for a safe installation.
No. The 750 HP and 1,200+ HP figures are advertised capability targets, not independently verified guarantees. Actual fueling capacity depends on fuel, operating pressure, voltage, installation, tuning and other components.
Not yet. The website currently has a demonstration cart and configurator. Online payment processing and order fulfillment will be activated after checkout and shipping are configured and tested.
Reuse your factory LPFP assembly with add-on components designed for a straightforward installation.
Both packages include a custom fuel pump controller and are advertised as not requiring a HOBB switch.
Step up to the Stage 1 system with optional inline filtration and -8AN lines for a more complete fuel-delivery solution.
TheFuelingSolution is built around a simple idea: make performance fueling packages accessible to drivers pushing their Audi C7 4.0T platform further. By Dethan Hawk & Briar Lacey.
VIEW OUR KITS →Not sure which kit is right for your Audi? Have questions about fitment, E85, pump controllers, or upgrades? Send us a message and tell us about your setup.
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Please include your vehicle year, model, fuel type, and horsepower goals so we can better understand your build.