---
product_id: 793279905
title: "25-300BK Black High Volume Adjustable Fuel Pressure Regulator"
brand: "aem"
price: "$623.84"
currency: USD
in_stock: true
url: https://www.desertcart.us/products/793279905-25-300bk-black-high-volume-adjustable-fuel-pressure-regulator
store_origin: US
region: United States of America
---

# Supports up to 1000 HP fuel flow Aluminium body with -6 AN threaded outlet Adjustable 20-100+ psi pressure range 25-300BK Black High Volume Adjustable Fuel Pressure Regulator

**Brand:** aem
**Price:** $623.84
**Availability:** ✅ In Stock

## Summary

> ⛽ Tune like a pro, race like a legend.

## Quick Answers

- **What is this?** 25-300BK Black High Volume Adjustable Fuel Pressure Regulator by aem
- **How much does it cost?** $623.84 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/793279905-25-300bk-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

- • **Pro-Grade Connections:** Includes custom barb fitting and threaded -6 AN outlet for secure, leak-free fuel lines.
- • **Race-Ready Fuel Control:** Precisely tune fuel pressure from 20 psi up to your pump's max for peak engine performance.
- • **Vehicle-Specific Fitment:** Engineered for Honda/Acura models (94-01 Integra, 86-00 Accord, 92-00 Civic, 88-96 Prelude, 93-95 Del Sol) ensuring plug-and-play installation.
- • **Durable Lightweight Design:** Crafted from premium aluminium for strength without the weight penalty.
- • **Universal Pump Compatibility:** Patented interchangeable discharge ports match any fuel pump output seamlessly.

## Overview

The AEM 25-300BK is a high-volume, adjustable fuel pressure regulator designed specifically for select Honda and Acura models. Built with a durable aluminium body, it supports fuel flow for engines up to 1000 horsepower and features patented interchangeable discharge ports for compatibility with any fuel pump. Its adjustable pressure range from 20 psi to maximum pump capacity allows precise fuel tuning, while vehicle-specific fitment ensures easy installation and reliable 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.

## 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 |
|---------------|-------|
| Brand | AEM |
| Fit Type | Vehicle Specific Fit |
| Vehicle Service Type | Car |
| Material | Aluminium |
| Style | Modern |
| Specification Met | OE |
| Auto Part Position | Inside |
| Outlet Connection Size | 0.25 Inches |
| Outlet Connection Type | Threaded (AN) |
| Body Material | Aluminium |
| Inlet Connection Type | Hose Barb |
| Mounting Type | Inline Mount |
| Operation Mode | Mechanical |
| Product Grade | new |
| Global Trade Identification Number | 00840879019860 |
| Automotive Fit Type | Vehicle Specific Fit |
| OEM Part Number | 25-300BK |
| Manufacturer | AEM |
| UPC | 840879019860 |
| Model | Fuel Injection Pressure Regulator |
| Item model number | 25-300BK |
| Manufacturer Part Number | 25-300BK |
| Colour | Black |
| Country of Origin | USA |
| Item Weight | 245 g |

## Product Details

- **Brand:** AEM
- **Fit Type:** Vehicle Specific Fit
- **Vehicle Service Type:** Car
- **Material:** Aluminium
- **Style:** Modern
- **Specification Met:** OE
- **Auto Part Position:** Inside
- **Outlet Connection Size:** 0.25 Inches
- **Outlet Connection Type:** Threaded (AN)
- **Body Material:** Aluminium

## Images

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

## 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

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.us/products/793279905-25-300bk-black-high-volume-adjustable-fuel-pressure-regulator](https://www.desertcart.us/products/793279905-25-300bk-black-high-volume-adjustable-fuel-pressure-regulator)

---

*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-03-03*