Precision Raceworks BMW E9x/E8x Bucketed Low Pressure Performance Fuel Pump for BMW 1M, 128i, 135i, 328i, 330i, 335i, X1 are designed for customers looking to run all blends of E85. All pump options below include Genuine Walbro 450 (F90000274), Walbro 525 (F90000285), or Walbro 535 (F90000295) fuel pump(s) capable of flowing up to 350% more fuel than the factory fuel pump, and all options are 100% E85 compliant.

Stage Options

• Stage 2 (2.6 liters per minute): Our Stage 2 bucketed fuel pump comes with a single Walbro 450 (F90000274) fuel pump. This pump can support up to 575whp (Rated for 500whp on 100% E85) and is ready to grow with you as your needs demand. Unlike other manufacturers, we are the only company featuring a bucketed kit with a modular design. This means you can purchase our Stage 3 pump module or Stage 3.5 module and upgrade our pumps as your needs change.

• Stage 2.5 v2 (3.9 liters per minute): Our Stage 2.5 v2 bucketed fuel pump comes with a single Walbro 535 (F90000295) fuel pump. This pump can support up to 650whp (Rated for 550whp on 100% E85) and is ready to grow with you as your needs demand. Unlike other manufacturers, we are the only company featuring a bucketed kit with a modular design. This means you can purchase our Stage 3 pump module or Stage 3.5 module and upgrade our pumps as your needs change.

• Stage 3 (5.65 liters per minute): Our Stage 3 bucketed fuel pump includes all necessary wiring and pump activation switch (Hobbs switch). This pump boasts dual Walbro 450 (F90000274) fuel pumps and can support up to 1000whp (Rated for 875whp on 100% E85) and is ready to grow with you as your needs demand. With a modular plug-and-play design, this kit can be upgraded with our Stage 3.5 or Stage 4 module and have everything you need to match your future horsepower goals.

• Stage 3.5 (6.8 liters per minute): Our Stage 3.5 bucketed fuel pump includes all necessary wiring and pump activation switch (Hobbs switch). This pump boasts a Walbro 450 (F90000274) and a Walbro 525 (F90000285), which offers maximum flow without costly pump controllers. This pump can support up to 1,100whp (Rated for 950whp on 100% E85) and is ready to grow with you as your needs demand. With a modular plug-and-play design, this kit can be upgraded with our Stage 3.5 or Stage 4 module and have everything you need to match your future horsepower goals.

• Stage 3.75 v2 (7.9 liters per minute): Our Stage 3.75 bucketed fuel pump includes all necessary wiring and pump activation switch (Hobbs switch). This pump boasts a Walbro 535 (F90000295) primary pump and a Walbro 525 (F90000285) secondary pump, offering maximum flow. This pump can support up to 1,150whp (Rated for 975whp on 100% E85) and is ready to grow with you as your needs demand. With a modular plug-and-play design, this kit can be upgraded with our Stage 4 module and have everything you need to match your future horsepower goals.

• Stage 4 (over 8 liters per minute): Our Stage 4 bucketed/bucketless hybrid fuel pump includes all necessary wiring and pump activation switch (Hobbs switch). This pump boasts dual Walbro 450 (F90000274) fuel pumps in bucket and a third Walbro 450 (F90000274) fuel pump outside the bucket. This pump can support OVER 1,300whp (Rated for 1150whp on 100% E85), making it capable of handling anything you can throw at it!

Differences from Non-Modular Pump:

Simply put, this kit is upgradeable from Stage 2 to Stage 3, and all the way up to Stage 4! If you are currently just starting on building your E9x or E8x and don't want to buy the pump you need for the future now, you can purchase what you need now, and then upgrade it with a pump upgrade module! If you are looking for a lower cost solution that still retains the factory Venturi's, then consider our Non-Modular Fuel Pump.

Assembly Options

• Kit Only: Our design was targeted to remove the need for sending your fuel pump assembly in for modification. Following the provided instructions, the average home mechanic can assemble and install our kit. This means less downtime and a great reduction in both assembly & shipping costs. Best of all, you end up with your pump in the condition it was in when you pulled it from the car, avoiding the risk of getting a housing back that is in poor condition. Install is easy—there is no guesswork on engagement and sealing of O-ring or complications and risks from tightening clamps that can poke holes in critical plastic components nearby.

• New Build (Fully Assembled): If you prefer to have someone else do the work, we are here for you. We offer 100% new builds—please allow 2-3 business days for assembly. This option is great for customers who plan to have a shop do the work. For about the same price you will pay in labor at the shop for assembly, you get an already assembled unit ready to drop right in. So if you are looking for a 100% assembled drop-in ready solution, this is the choice for you!

While all bucketless fuel pumps flow .2gpm more than a bucket design that retains the venturi, it comes at a cost. Bucketless pumps should not be driven on tanks lower than ¼ full and should not be used for road course racing. This is not a disadvantage of only bucketless designs but also a disadvantage for any bucket design which deletes the venturi. If you do not plan on road course racing (not street racing) and are responsible at maintaining ¼ tank of fuel during spirited driving, bucketless pumps can be a cheaper alternative for you.

Specifications

• Factory BMW Pump

• Pump flow 72psi (5bar): XXX GPM

• Pump Weight:

• Horsepower Supported Pump Gas:

• Horsepower Supported 100% E85: NOT COMPATIBLE

• Stage 2:

  • Pump flow 72psi (5bar): 0.7 GPM / 2.6 LPM
  • Pump Weight: 3.98 lbs
  • Horsepower Supported Pump Gas: 575
  • Horsepower Supported 100% E85: 500
  • Aftermarket EKP Required: No

• Stage 2.5 v2:

  • Pump flow 72psi (5bar): 1.0 GPM / 3.9 LPM
  • Pump Weight: 3.98 lbs
  • Horsepower Supported Pump Gas: 650
  • Horsepower Supported 100% E85: 550
  • Aftermarket EKP Required: No

• Stage 3:

  • Pump flow 72psi (5bar): 1.5 GPM / 5.65 LPM
  • Pump Weight: 8.68 lbs
  • Horsepower Supported Pump Gas: 1,000*
  • Horsepower Supported 100% E85: 850*
  • Aftermarket EKP Required: No

• Stage 3.5:

  • Pump flow 72psi (5bar): 1.69 GPM / 6.4 LPM
  • Pump Weight: 8.68 lbs
  • Horsepower Supported Pump Gas: 1,100*
  • Horsepower Supported 100% E85: 950*
  • Aftermarket EKP Required: No

• Stage 3.75 v2:

  • Pump flow 72psi (5bar): 1.92 GPM / 7.3 LPM
  • Pump Weight: 8.68 lbs
  • Horsepower Supported Pump Gas: 1,150*
  • Horsepower Supported 100% E85: 975*
  • Aftermarket EKP Required: No

• Stage 4:

  • Pump flow 72psi (5bar): XXX GPM
  • Pump Weight: 9.59 lbs
  • Horsepower Supported Pump Gas: 1,300+*
  • Horsepower Supported 100% E85: 1,150+*
  • Aftermarket EKP Required: No

Fitment

• BMW 1 Series M (2011)
• BMW 128i (2008 to 2013)
• BMW 135i (2008 to 2013)
• BMW 135is (2013)
• BMW 323i (2007 to 2011)
• BMW 325i (2006)
• BMW 325xi (2006)
• BMW 328i (2007 to 2013)
• BMW 328i Xdrive (2009 to 2013)
• BMW 328xi (2007 to 2008)
• BMW 330i (2006)
• BMW 330xi (2006)
• BMW 335i (2007 to 2013)
• BMW 335i Xdrive (2009 to 2011)
• BMW 335is (2011 to 2013)
• BMW 335xi (2007 to 2010)
• BMW X1 (2012 to 2015)

Elevate your BMW's performance today with the Precision Raceworks E9x/E8x Low Pressure Bucketed Fuel Pumps, tailored for optimal efficiency and maximum horsepower potential!