SKU: 58679869691

APR High Pressure Fuel Pumps - B7 RS4 - MS100072

Sale price$1304.97 Regular price$1449.97
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Description

APR High Pressure Fuel Pumps - B7 RS4 - MS100072Overview: The APR High Pressure Fuel Pump (HPFP) dramatically increases the maximum volume of fuel the HPFP can deliver. In doing so, the direct injection fueling system is capable of satisfying fueling requirements set forth by high horsepower setups. This is accomplished by increasing the displacement of the pump using high quality components to exacting tolerances. How the direct injection system works: A low pressure fuel pump (LPFP) in the fuel

Overview:

The APR High Pressure Fuel Pump (HPFP) dramatically increases the maximum volume of fuel the HPFP can deliver. In doing so, the direct injection fueling system is capable of satisfying fueling requirements set forth by high horsepower setups. This is accomplished by increasing the displacement of the pump using high quality components to exacting tolerances. How the direct injection system works: A low pressure fuel pump (LPFP) in the fuel tank delivers fuel to the high pressure fuel pump (HPFP) at roughly 4 to 6 bar. Fuel pressure is then bumped up to a maximum of 136 bar, depending on factory parts, with the HPFP. Finally, high pressure fuel is delivered to the injectors, which spray directly into the cylinders. The problem: The volume of fuel the HPFP pump can displace is directly tied to the displacement of the pump (Internal bore size, and camshaft dictated stroke), and engine speed. The pump is driven off of a camshaft. Upgraded supercharger and turbocharger systems are capable of taxing this system, especially in the mid to lower RPM range where fuel volume is lower. The APR solution: We dramatically increase the volume of fuel the HPFP can displace at every RPM by increasing the displacement of the HPFP. This is accomplished by increasing the bore diameter of the pump's internal pressurizing cylinder. It's important to understand, despite the name, a HPFP upgrade is not necessary designed to increase the engine's fuel rail pressure. The primary goal is to increase the volume of fuel available, which will keep fuel pressure steady even in the most demanding of situations! High quality components and extreme tolerances: The HPFP internals must be machined to extreme tolerances and installed in a clean environment or the pump can easily fail. Dimensional tolerances on the APR HPFP are as tight as .00004" and geometric tolerances are as tight as .00005". The plunger and barrel are created from certified and heat-treated bearing-grade stainless steel and the plunger undergoes a special diamond like coating process for exceptional surfaces hardness and ultra-reliable operation. To prevent float associated with altering the plunger's mass, APR supplies each unit with a properly specified spring. All internal seals are replaced, including the spring seal, and the tip of the pump retains the factory pivoting head to reduce cam follower wear and piston side loading. Internal testing: All APR HPFPs are assembled in house under strict assembly guidelines. Each pump is then tested on our test rig to ensure the pumps operate as designed. This step is important for several reasons. It's critical in determining if a pump has a failure from incorrect install, a leaking seal, or a bad solenoid. Secondly, a seized pump on the vehicle at startup can cause damage to the engine's camshaft. By testing each pump, we all but eliminate these possibility. Proven track record: APR pioneered HPFP upgrades in the early days of VAG direct injection engines. Soon after, APR became an OEM supplier of HPFP and GDI components to VAG for use in various race cars, racing series, project cars, and concept vehicles. The APR HPFP has been at the center of countless motorsport victories across the globe and has operated with a nearly perfect tract record since the program's motorsport backed inception in 2006. With tens of thousands of pumps sold, APR has a wealth of knowledge, and manufacturing expertise necessary to deliver a product that will and has stood the test of time. This kit included two new rebuilt pumps.
 

Features:

  • Dramatically increases the volume of fuel displaced by the HPFP
  • Maintains higher pressures under demanding situations
  • Fully rebuilt in house
  • Fully machine tested and broken in before shipping
  • New factory pumps included
  • Upgraded and weight matched spring
  • DLC coated piston
  • Heat-treated bearing-grade stainless steel material
  • Supports big power
  • .00004" dimensional tolerances
  • .00005" geometrical tolerances
  • Spring seals replaced

 

Application:

Year Make Model Submodel Engine Size
2008 Audi RS4 Cabriolet 4.2L V8
2007 - 2008 Audi RS4 Base 4.2L V8

 

Specs:

Brand APR
Emission Code 4
Larger Bore Yes
Larger Piston Yes
New or Rebuilt Pump New
New Seals Yes
New Spring Yes
Piston / Bore Material Bearing-Grade Stainless Steel
Piston Coating DLC
Product Type High Pressure Fuel Pump
Quantity 2
Rebuild No
Tested Yes
Warning California Proposition 65
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SKU: 58679869691

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Santa Celeste Moya
New York, US
★★★★★ 5
all the information you need in one book
Format: Paperback
I recently picked up Astral Projection for Beginners, recommended by a friend, and I wish I had discovered it sooner! Having tried to master astral travel with another book, I struggled to make progress, but Grace’s guide covers everything you need to know to successfully navigate this fascinating practice. The book delves into techniques for transitioning from your physical body to your astral body, addressing the fears that may arise during the process. Grace explains how fear can pull you back into your physical form, providing insights on what to expect when you embark on astral travel. This comprehensive approach makes it an essential read for anyone serious about exploring this realm. One of the standout features of the book is the inclusion of various case studies detailing the experiences of individuals who have successfully astral traveled, along with Grace’s own firsthand accounts. This blend of practical information and personal narratives makes the material relatable and engaging. You learn so much from others’ experiences, and it adds a layer of authenticity to the guidance provided. I had a close call with astral travel just last night while using the rope technique. When I caught sight of my physical body from my astral body, I panicked and was instantly pulled back. Grace addresses this fear in her book, explaining that it’s a common reaction and offering strategies to overcome it. I appreciated her reassurance and guidance, which gave me the confidence to try again tonight. As I was finishing the book on my way to New York, I felt inspired and determined to attempt astral travel again. I highly recommend this book to anyone interested in this practice. It’s a well-rounded resource that includes all the information you need—and then some—to successfully explore the world of astral travel.
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Reviewed in the United States on December 1, 2025
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SpiritOfTheSpar
Battle Creek, US
★★★★★ 5
Finally, A Journey Beyond
Format: Kindle
I approached this book with healthy skepticism but found myself completely transformed. After years of meditation with limited results, the step-by-step techniques described here finally helped me achieve my first genuine out-of-body experience last week—something I never thought possible. The author strikes the perfect balance between accessibility and depth. The historical context grounds everything in fascinating tradition while the practical methods are refreshingly clear and effective. I especially appreciated the safety precautions; they addressed anxieties I didn't even know I had. What surprised me most was how my astral experiences have positively affected my everyday life. I'm sleeping better, feeling more connected to others, and approaching challenges with newfound perspective. The section on navigating different astral realms is particularly enlightening—it matched my experiences so precisely that I got chills. For anyone curious about consciousness beyond the physical, this guide is the genuine article.
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Reviewed in the United States on May 18, 2025
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J.R.
Belleville, US
★★★★★ 4
Great information for such a sensitive subject.
Format: Kindle
This book has a lot of great information and very useful techniques I do wish that the author would have gone a little bit deeper into some of the techniques and some of the direct experiences that will happen as a result but this is a great starter guide.
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Reviewed in the United States on March 29, 2025
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Customer
Phoenix, US
★★★★★ 5
This was beyond my expectations!
Format: Paperback
I was absorbed by this book. It is such a wonderfully easy read. I just loved it, and it resonated with me so much! The very best part for me was discovering that I did astral project from a lucid dream. I didn't know that was possible, but when she spoke about it in the book I realized that I absolutely had. It clicked! I was having a bad lucid dream about 6 months ago and my precious beloved son (who passed almost five years ago now) came to me. I had asked for this as I am very actively spiritual. Well, I was distressed in my dream and he started calling my name in his own voice ("Mom"), three times he called me, and I reached out towards the sound of his voice and started searching for him with my intuition and called out his name, reaching out my arms for him and from my lying down position I stood up out of my body and was standing with him in the astral realm from my dream. I remember thinking, "How can I be standing here with him if I'm lying in my bed now?." and I asked him, "How can you be here like this?!" It was so very beautiful. I will just say that much about it. But, this book is really 5 stars! I read a lot. This book was so inspiring and laid out so well. Excellent job, Sophia Grace! I would love to pay to have a psychic session with you. I would love to go to one of her sessions. I hope that information is made available. Thank you for such great energy that emits from this book.
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Reviewed in the United States on November 17, 2024
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John C
Belleville, US
★★★★★ 5
More than a standard "template" of AP books!
Format: Kindle
I've been interested in,and reading AP books for over 30 years and though "waiting for the vibrations and easing myself out of body" has never come easily for me as most books so predictably and expectedly teach us to do, and as this one does, it's never happened for me this way. I simply become aware near my bed or body, and even still, only a few times in these decades of effort. I am grateful however that the author takes such great effort to include the health and care necessary for our entire and overall being, and how essential energy, and its overall quality, is vital for such a demanding energetic process that we are calling for in our own soul journeys. The support and assurances found within make this a welcome and most helpful addition to the ongoing library of astral projection guidebooks available to humanity today.
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Reviewed in the United States on October 4, 2025

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