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πŸ”§ black adjustable high volume fuel pressure regulator - aem 25-300bk logo

πŸ”§ Black Adjustable High Volume Fuel Pressure Regulator - AEM 25-300BK Review

5

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Average

Revainrating 3 out of 5Β Β 
RatingΒ 
3.2
πŸ›’οΈ Fuel System, 🏎️ Performance Car Parts & Accessories

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Description of πŸ”§ Black Adjustable High Volume Fuel Pressure Regulator - AEM 25-300BK

Applications: 94-01 Acura Integra RS, LS, GS and GSR. Applications: 86-89 Honda Accord Lxi, Sei and 90-93 Honda Accord DX, LX, SE, EX (Must use AEM Rail) and 92-95 Honda Civic VX, CX, DX, LX and EX. Applications: 99-00 Honda Civic Si and 93-95 Honda Del Sol S, Si and 94-97 Honda Del Sol VTEC. Applications: 88-91 Honda Prelude Si and 92-96 Honda Prelude S (Must use AEM Rail). Adjustable from 20 psi to maximum fuel pump capacity.

Reviews

Global ratings 5
  • 5
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  • 4
    1
  • 3
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  • 2
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    2

Type of review

Revainrating 5 out of 5

Not worth it, very poor quality, basically a $120 paperweight with a cool AEM sticker in the box

#1 fitting for return line leaking After initial installation, RTV and overtightening is required to stop leak #2 within 3 months of initial installation. The cup on the diaphragm begins to leak fuel. An RTV is required to stop leak #3 within 3 months. 2 weeks after initial installation, the diaphragm ruptured internally, resulting in engine shutdown and gas filling, hydraulic locking of 2 cylinders and oil contamination. Avoid this pattern if possible. big waste of my time. 0 stars

Pros
  • Applications: 94-01 Acura Integra RS, LS, GS and GSR
Cons
  • I'll write later

Revainrating 1 out of 5

6 months Defective inner seal Buy elsewhere.

Installed on September 11, 2019, March 9th. Mine had internal seal failure. Now I need a conversion kit for this regulator. Buyer Warning. There's another guy who publicized his failure at 18 months. Looks like aem is cutting corners

Pros
  • The best in its niche
Cons
  • Security

Revainrating 4 out of 5

New design of old model

Worked as expected. However, I only give four stars because the vapor recovery screw was leaking when it was connected. After I tightened it there were no problems. I just feel like it should be properly tightened from the factory first, or at least told the unit needs the correct torque before use. Otherwise it's great and replaced my 16 year old who still had the original diaphragm.

Pros
  • Certified
Cons
  • Weight

Revainrating 1 out of 5

Not worth it, very poor quality, basically a $120 paperweight with a cool AEM sticker in the box

The no - attracted to leak no 2 within To be fixed 3 months after the initial installation, the cup on the diaphragm where fuel was leaking needs to be put back in order to stop leak #3 within 3 months. 2 weeks after initial installation the diaphragm ruptured internally causing the engine to stop and fill with petrol, hydrolocking 2 cylinders and contaminating the oil. Avoid this pattern if possible. big waste of my time. 0 stars

Pros
  • Very good value for money
Cons
  • poorly thought out

Revainrating 5 out of 5

Good product. Costs money.

This AEM fuel pressure regulator fits my Integra with B20b swap. First I tried a cheaper alternative from DNA-Motoring. The correction was very delicate. And the diaphragm failed after just a few months of regular driving. Leaves me on the side of the road with a full tank of fuel. But this fuel pressure regulator is much better. The best processing quality. The best fine tuning. And it has parts that can be replaced if they fail. Unlike cheaper fakes. Bottom Line: If you need an adjustable…

Pros
  • handy thing
Cons
  • so far so good