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AEM Adjustable Fuel Pressure Regulator Black (Part Number: )
AEM Adjustable Fuel Pressure Regulator Black (Part Number: )
AEM Adjustable Fuel Pressure Regulator Black (Part Number: )
AEM Adjustable Fuel Pressure Regulator Black (Part Number: )
AEM Adjustable Fuel Pressure Regulator Black (Part Number: )
AEM Adjustable Fuel Pressure Regulator Black (Part Number: )
AEM Adjustable Fuel Pressure Regulator Black (Part Number: )
AEM Adjustable Fuel Pressure Regulator Black (Part Number: )
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AEM Adjustable Fuel Pressure Regulator Black (Part Number: )
AEM Adjustable Fuel Pressure Regulator Black
Universal
Read 5 Reviews | 9 Q&As
Part # 25-302BK
$125.76
msrp: $174.66

In stock! Ships same day
Universal part

Features & Product Details

RallySport Direct carries the AEM Universal Adjustable Fuel Pressure Regulator for those of you who are building a fuel system that is needed to support up to 1000 horsepower. 

Here are the details:

  • Patented interchangeable discharge ports enable the regulator's output to match the output of ay fuel pump
  • Tapped to accept a -6AN or 9/16" x 18 fittings
  • 1/8 NPT port for a fuel pressure gauge or pressure sensor pick up 
  • Black finish
  • Hardware and bracket included
  • Specifications

    Brand: AEM
    Adjustable: Yes
    Fuel Pressure Gauge Port Size: 1/8NPT
    Inlet Size: -6AN
    Outlet Size: -6AN
    Mfgr. Warranty: 1 Year
    Condition: New Product
    Return Policy:

    RallySport Guarantee - 30 Days


    Items that are covered under the RallySport Guarantee offer a 30 day no questions asked return policy.

    RallySport Guarantee items may be returned within 30 days of the original invoice date and must include all the original parts and contents for a refund.

    The RallySport Guarantee does not apply to products that have been modified, damaged, misused or abused. All returns require an RMA (Return Merchandise Authorization) Number, and freight charges are strictly non-refundable. For more information regarding our freight refund policy, please refer to our return policy page found HERE.
    Standard
    WARNING: This product contains chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm.

    PEOPLE WHO VIEWED THIS ITEM ALSO VIEWED

    REVIEWS & CUSTOMER MEDIA

    5 Reviews
    4.2 out of 5 Stars
    5 Stars
    (4)
    4 Stars
    (0)
    3 Stars
    (0)
    2 Stars
    (0)
    1 Stars
    (1)
    Customer Photos and Videos
    AEM Adjustable Fuel Pressure Regulator Black ( Part Number: 25-302BK)
    2 years later it's leaking  1 year ago
    Hellchaser
    Developed a leak on the top of the fpr where the diaphragm is. Car has only been driven about 12,000 miles total. On E85 for the last 1,000 miles before I discovered it
      
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    Fuel Guage 3 years ago
    bill23032
    This product was easy to install and has provided the required assistance in setting up our rally car on the quick. We will be purchasing additional units for additional cars.
      
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    Solid Item 4 years ago
    kewl_nate30462
    If you are thinking of getting any sort of fuel upgrades for your car, this should be on the list. This FPR works great with the Injector Dynamics fuel rails since there both 6an O-ring fittings. This thing is made to last! My only though to make this FPR better would be to space the 4 bolts out more for the bracket as it only fits on horizontally and not vertically. Other then that this is a must buy!
      
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    works great 4 years ago
    guest55c53165caae52790b8d38a5
    i was on the fence about this regulator because of the description of what kind of fittings it uses. i had an aeromotive that went out on me so i needed one asap but didnt want to spend another 200 on an aeromotive one if the aem one could use the fittings i have. long story short, what aeromotive calls -6orb (for o-ring boss) is exactly the same as/another name for 9/16x18. this is also known as -6 o-ring from parts sites that specialize in fittings. the main difference between this regulator and the aeromotive as far as the fittings are concerned is if you use -6AN in the aeromotive the conical seat doesnt have a place to create a seal. this regulator is machined with a chamfer for the o-ring to sit in as well as the conical seat for regular AN adapter fittings.
      
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    Straight Forward 6 years ago
    1FASTWREX
    Great Product very straight forward install. A must item if you plan on running more boost and bigger turbo.
      
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    QUESTIONS & ANSWERS

    • Q: 6an fittings?  iblackwe648002 years ago

      Does it come with these like your Tomei s product does or would you have to buy some?
    • Q: Install  Gomesypoo3 years ago

      I bought this regulator to for my 2002 wrx, and the mechanic said that it won't mount where the stock regulator is located. Do i need to purchase an install kit for this part and if so what kit should we use
      • 0 of 0 people found the following answer helpful

        A:  This is a universal product and will require custom lines, fittings, etc for installation.

        Nick S. @ RallySport Direct 3 years ago  
          
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    • Q: Fuel Bleed down  2010Fozziext3 years ago

      How fast does the fuel bleed down on this regulator?
      • 0 of 0 people found the following answer helpful

        A:  It will bleed down as soon as the key is turned off. They do not hold pressure for any significant amount of time.

        Trevor C. @ RallySport Direct 3 years ago  
          
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    • Q: Stumble fix?  Jbrar4 years ago

      I have a 2014 sti sedan that has stumble around the 3k rpm range and im not sure if im correct but i have read that to fix the issue you need to get the fpr from 06-07 sti or aftermarket fpr. So my question is would this fix that problem. And the only stumble fix kit ive seen is on the cobb website which has the hoses and connectors included. So is that needed to fix that or can i just hook this up to my stock lines? Ive read alot about this whole issue but alot of people are saying all sorts of things and im still confused.
      • 0 of 0 people found the following answer helpful

        A:  An aftermarket fuel pressure regulator is one of many ways that has been known to fix a fuel stumble. Keep in mind this is a universal product and will be a custom fit with your vehicle.

        Nick S. @ RallySport Direct 4 years ago  
          
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    • Q: 2010 wrx hatch  crystalmethodist784 years ago

      I want to use the 1000cc Injector dynamics along with this. Any fitment issues with my vehicle
      • 1 of 1 people found the following answer helpful

        A:  This is a universal part and the installation will be custom. As long as you can mount the bracket and make fuel lines it should fit without an issue.

        Nick S. @ RallySport Direct 4 years ago  
          
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    This Part Fits

    Universal Product
    This item is non application specific.
    Please verify compatibility before purchase. May require some modification for proper installation.