DeatschWerks DW300 Series, 340lph in-tank Fuel Pump with Install Kit For Subaru Forester 97-07, Subaru Impreza (including WRX and STI) 93-07

Elevate your Subaru’s fuel delivery system to unmatched levels of performance with the DeatschWerks DW300 Series 340lph In-tank Fuel Pump and Install Kit, precision-engineered to perfectly fit the Subaru Impreza 22B, Forester X, and Impreza WRX models. This exceptional upgrade redefines the standards in in-tank fuel pumps, offering superior flow rates, precision engineering, and unbeatable reliability.

Unleash the Power:

The DeatschWerks DW300 Series Fuel Pump is craft to outperform the competition, delivering an astonishing 325 liters per hour of fuel flow at 40 psig and 13.5 volts. With this kind of capacity, you’ll never have to worry about fuel starvation, even in high-demand situations.

Tailored for Subaru Enthusiasts:

Designed specifically for Subaru Impreza 22B, Forester X, and Impreza WRX models. This fuel pump fits like a glove, ensuring a seamless installation process. No more guesswork or modifications—just plug and play for an instant power boost.

Built to Last:

Back by a robust 3-year no-fault warranty, the DW300 Series Fuel Pump is craft with durability in mind. Its quality construction and precision components are built to withstand the rigors of high-performance driving, provides you with peace of mind and reliability.

Certified Performance:

Each DW300 pump undergoes rigorous flow testing and comes with a custom report, so you know you’re getting a product that meets the highest standards of performance and quality.

E85 Ethanol Ready:

For those who seek versatility in their fuel options, the DW300 Fuel Pump is 100% E85 ethanol fuel compatible. Experience the benefits of alternative fuels without compromising on performance.

Upgrade your Subaru’s fuel system with the DeatschWerks DW300 Series 340lph In-tank Fuel Pump and Install Kit. It’s time to surpass your own expectations and leave the competition in the dust. Elevate your driving experience and power up with confidence, knowing you’ve chosen the best in-tank fuel pump available.

Please Note: Actual performance will vary from car to car. Please read below to understand more about fuel pump flow rates:

Understanding Fuel Pump Ratings

The flow of a pump is dependant on voltage and pressure. Generally, a performance fuel pump’s advertised flow rate is at 40psi of pressure and 13.5 volts. At this rating, the Deatschwerks 300 series fuel pump flows around 325lph, but depending on the pressure and voltage. It is completely accurate to say the pump flows 185hlph or 460lph.

The chart above shows how well the Deatschwerks pump copes with the increasing pressures typically found in turbocharged cars, compared with the Walbro 255lph pump.

This is why it is always important to know what pressure and voltage a pump is being rated at.

More About Fuel Pump Flow and Pressure

Not all customers fully understand the dynamics of a fuel pumps flow in relation to pressure, voltage, and current. Because of this, many misconceptions and confusion can occur.

A fuel pump’s flow will always drop as pressure increases, how much it drops varies from pump to pump.  This is why having detailed flow specs at different pressures is important and why Deatschwerks publish them.

The majority of customers who are in a market for a pump like the Deatschwerks 300 series pump, have turbocharged or supercharged cars (that is not to say the pump can not be used in a more mild performance car). Most of these cars will be operating in a total fuel pressure range of 60-80 psi (base fuel pressure + boost pressure), so they need to worry about what a pump will flow in their specific total pressure range.

It is almost meaningless to them what a fuel pump flows at 40psi of pressure. For example, pump A could rate at 350lph and Pump B could be rate at 300lph, but if pump B out flows pump A at 70psi of pressure then pump B is the better choice for those running 70psi of pressure.

Voltage will also vary from set-up to set-up, which is why Deatschwerks test their pumps at different voltages. Most cars will be getting between 12-14 volts to the pump but it is popular for customers to use a product like Boost-a-pump, which raises the voltage to the pump as high as 18v. That is why flow rate are shown at different voltages.

So in short, using the common rating point of 40psi and 13.5v, the 300 series pump flows about 325lph. But knowing the full flow rates ranges and specs is important to know how the pump is going to flow in a specific cars set-up.