---
product_id: 52184839
title: "AEM 25-300BK Black High Volume Adjustable Fuel Pressure Regulator"
brand: "aem"
price: "AR$981864"
currency: ARS
in_stock: true
reviews_count: 5
category: "Aem"
url: https://www.desertcart.com.ar/products/52184839-aem-25-300bk-black-high-volume-adjustable-fuel-pressure-regulator
store_origin: AR
region: Argentina
---

# Supports up to 1000 HP fuel flow Interchangeable discharge ports & custom fittings Adjustable pressure from 20 to max pump psi AEM 25-300BK Black High Volume Adjustable Fuel Pressure Regulator

**Brand:** aem
**Price:** AR$981864
**Availability:** ✅ In Stock

## Summary

> ⛽ Elevate your ride’s fuel game—because every psi counts!

## Quick Answers

- **What is this?** AEM 25-300BK Black High Volume Adjustable Fuel Pressure Regulator by aem
- **How much does it cost?** AR$981864 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.ar](https://www.desertcart.com.ar/products/52184839-aem-25-300bk-black-high-volume-adjustable-fuel-pressure-regulator)

## Best For

- aem enthusiasts

## Why This Product

- Trusted aem brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **High-Flow Capacity:** Built to support engines up to 1000 horsepower—power your build without compromise.
- • **Customizable Fitment:** Includes patented interchangeable ports and custom barb fittings for effortless installation.
- • **Pro-Grade Durability:** Crafted by AEM, a trusted name in performance parts, for reliable and consistent fuel regulation.
- • **Precision Fuel Control:** Fine-tune your fuel pressure from 20 psi up to your pump’s max for peak engine performance.
- • **Universal Compatibility:** Designed for a wide range of Honda/Acura models, ensuring seamless integration with your ride.

## Overview

The AEM 25-300BK is a high-volume adjustable fuel pressure regulator engineered for Honda and Acura models from the late '80s to early 2000s. It supports fuel flow for engines up to 1000 horsepower, features adjustable pressure settings from 20 psi to the maximum capacity of your fuel pump, and offers patented interchangeable discharge ports with custom fittings for easy installation and optimal performance.

## Description

AEM's Honda/Acura Adjustable Fuel Pressure Regulators are capable of supporting enough fuel flow for engines up to 1000 horsepower. AEM's patented interchangeable discharge ports enable the regulator's output to match the output of any fuel pump. AEM includes a custom barb fitting to accommodate the factory fuel hose and the base of each regulator is tapped to accept a -6 AN or 9/16-inch x 18 fittings.

Review: Just as described. Awesome part
Review: This FPR is trash. I’m on my third one and they’ve all started to leak within a few weeks. I’d rather not turn my car into a rolling ball of flames AEM. I’m very disappointed in this product. I expect better.

## Features

- 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

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B002YXCT3W |
| Brand | AEM |
| Customer Reviews | 4.1 4.1 out of 5 stars (207) |
| Date First Available | 14 Aug. 2012 |
| Delivery information | We cannot deliver certain products outside mainland UK ( Details ). We will only be able to confirm if this product can be delivered to your chosen address when you enter your delivery address at checkout. |
| Item Weight | 245 g |
| Item model number | 25-300BK |
| Lift type | Mechanical |
| Manufacturer | AEM |
| Manufacturer part number | 25-300BK |
| Model | Fuel Injection Pressure Regulator |
| OEM Part Number | 25-300BK |
| Position | Inside |

## Product Details

- **Auto part position:** Inside
- **Brand:** AEM
- **Fit type:** Vehicle Specific Fit
- **Inlet connection size:** 0.38 Inches
- **Material:** Aluminium
- **Outlet connection size:** 0.25 Inches
- **Outlet connection type:** AN
- **Specification met:** OE
- **Style:** Custom
- **Vehicle service type:** Car

## Images

![AEM 25-300BK Black High Volume Adjustable Fuel Pressure Regulator - Image 1](https://m.media-amazon.com/images/I/618dqIq7vTL.jpg)
![AEM 25-300BK Black High Volume Adjustable Fuel Pressure Regulator - Image 2](https://m.media-amazon.com/images/I/31eap8oepYL.jpg)

## Questions & Answers

**Q: What is the possible psi out?**
A: We have them set at 55 psi

**Q: Will it work with a. Stock fuel rail on d15b7**
A: I don't think so, but check it on the AEM website.

**Q: Do I need to use AEM rail for 1995 Honda Civic EX?**
A: You dont need the rail you can bolt it on to the stock one.but if you plan on adjusting for more fuel you should get the fuel rail

**Q: Do i need to buy the aem rail for a 93 honda accord 2.2l sohc ?**
A: Id imagine so....

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by S***5 on 26 July 2025*

Just as described. Awesome part

### ⭐ Review
*by C***L on 17 February 2025*

This FPR is trash. I’m on my third one and they’ve all started to leak within a few weeks. I’d rather not turn my car into a rolling ball of flames AEM. I’m very disappointed in this product. I expect better.

### ⭐⭐⭐⭐⭐ Review
*by M***N on 30 May 2025*

Tried many other brands and got leaks, improperly seated diaphragms and some leaking from vacuum side. This one was great. Installed and fired right up.

## Frequently Bought Together

- AEM 25-300BK Black High Volume Adjustable Fuel Pressure Regulator
- Marshall Instruments LBB00100 Fuel Pressure Gauge Black
- AEM 25-100BK Black High Volume Fuel Rail

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**Shop now:** [https://www.desertcart.com.ar/products/52184839-aem-25-300bk-black-high-volume-adjustable-fuel-pressure-regulator](https://www.desertcart.com.ar/products/52184839-aem-25-300bk-black-high-volume-adjustable-fuel-pressure-regulator)

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*Product available on Desertcart Argentina*
*Store origin: AR*
*Last updated: 2026-03-10*