IE HPFP Internal Upgrade Kit For Audi B9 S4/S5, SQ5 3.0T & /RS4RS5 2.9T
SKU: 28243545100

IE HPFP Internal Upgrade Kit For Audi B9 S4/S5, SQ5 3.0T & /RS4RS5 2.9T

Sale price$245.70 Regular price$273.00
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Description

IE HPFP Internal Upgrade Kit For Audi B9 S4/S5, SQ5 3.0T & /RS4RS5 2.9TThe IE HPFP Internal Kit upgrades the high pressure fuel pump in your Audi B9 3. 0T or 2. 9T engine with the largest volume possible piston and cylinder design to unlock fuel delivery for hybrid turbos and our Stage 1 2 Plus ECU tunes. Manufactured with top quality components and an industry leading QC process to ensure extreme reliability. Increase your fuelling overhead and enjoy worry free HPFP operation for your 6 cylinder turbocharged engine.

 

The IE HPFP Internal Kit upgrades the high pressure fuel pump in your Audi B9 3.0T or 2.9T engine with the largest volume possible piston and cylinder design to unlock fuel delivery for hybrid turbos and our Stage 1/2 Plus ECU tunes. Manufactured with top-quality components and an industry-leading QC process to ensure extreme reliability. Increase your fuelling overhead and enjoy worry-free HPFP operation for your 6-cylinder turbocharged engine.

REQUIRED FLOW FOR
E85 & HYBRID

ECU TUNES

STROKE VOLUME
38.58%

INCREASE OVER STOCK

LARGEST POSSIBLE
11.68MM

PISTON DIAMETER

LEADING FEATURES

  • Highest possible flow -safely run ethanol & hybrid turbo ECU tunes
  • In-house verified -Broken-in and bench tested on our pump dyno
  • Tool steel pin & cylinder -Extreme resistance to heat and abrasion
  • DLC-coated pin -Low friction long-life coating
  • Nitrided cylinder -Increases hardness and wear resistance
  • Titanium retainer -Ultra lightweight and high strength
  • Engineered, designed, & manufactured in the USA

ADDED DISPLACEMENT

Your HPFP is an integral part of the B9 3.0T & 2.9T platforms direct injection (DI) system and provides exceptionally high-pressure fuel (exceeding 2900psi) to the injectors. When running turbo upgrades or ethanol fuel, the stock HPFP internal volume becomes the limiting factor when increasing power. IE's HPFP internals install into your factory pump housing and increase the bore and piston size of the pump internals, adding more flow, delivering more fuel, and safely allowing for higher horsepower & torque output.

FLOW TESTING

IE HPFP Upgrade Internals offer the largest possible size within the B9 V6 pump body. The factory-installed 9.92mm internal pin has been enlarged to 11.68mm, increasing the stroke volume from 448mm^3 to 621mm^3. The result is a maximum gain of 38.58% more flow over stock!

CUTTING-EDGE RELIABILITY

Every piston and cylinder is CNC machined to exacting sizes, assembled, and measured as a matching set in-house. Tolerances are hand-verified using specialized measurement tools and verified down to 0.00005 of an inch to ensure reliability and proper function. These extreme manufacturing and QC processes have built IE's leading reputation in HPFP reliability and cemented our HPFP designs as the popular choice for those requiring a worry-free operation.

PUMP DYNO VERIFICATION

IE HPFP designs are verified and torture-tested on our fuel pump dyno. This machine can replicate countless miles and various RPM situations to substantiate every detail of the HPFP design. This strict engineering process, combined with our 100% in-house CNC machining, obsessed quality control, and top-shelf components, is why IE HPFP Kits have earned their reputation for reliability.


INCLUDED LIMITED WARRANTY

Due to the extreme machining and coating tolerances, Integrated Engineering is proud to offer a limited warranty on this product:
Unlimited miles for six months from the day of purchase

DLC COATED

DLC (diamond-like carbon coating) is an advanced coating process applied to the tool steel pin. This coating reduces friction by combining increased hardness with low coefficient properties to providing excellent wear and a self-lubricating behaviour that drastically extends pin life.

TITANIUM RETAINER

Our ultra-lightweight FEA-optimized titanium retainer reduces the chance of valve float while securing the factory spring to the new IE pump assembly. The internal kit is designed correctly for the factory spring rate, avoiding the need for a stiffer spring that adds unnecessary pressure and wear on the camshaft.

NITRIDED CYLINDER

The HPFP cylinder is tortured with up to10,500 strokes per minute with an extremely narrow tolerance and lubricated solely by fuel. To ensure durability, we have manufactured a tool steel cylinder featuring an advanced nitriding finish. This procedure infuses nitrogen atoms into the material's outer surface, greatly enhancing the surface hardness and wear resistance. Each nitride cylinder is independently verified for thickness and quality in a specialized laboratory.


INSTALL TOOL

Disassembly & assembly of the factory HPFP housing requires a specialty tool to thread the assembly housing into the pump body. We have designed and manufactured ours to fit directly to 1/2" drive sockets and torque wrenches. This offers better leverage for unthreading the body and reliable torque spec to complete the installation process without any hassles, making the job easy.

HPFP Socket Tool sold separately

INSTALLATION

Installing your new HPFP kit is straightforward with the correct tools and does not require any permanent modifications. Involves fuel lines and special care to avoid contamination in a clean environment; experienced or professional installation is highly recommended.

Install time around 2-3 hours

FITMENT GUIDE

MAKE MODEL YEAR ENGINE

Audi

S4

2017-2021 (B9)

3.0T

Audi

S5

2017-2021 (B9)

3.0T

Audi

SQ5

2018-2023 (B9/B9.5)

3.0T

Audi

RS5+RS4

2018-2023 (B9/B9.5)

2.9T

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 28243545100

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c b
Charlottesville, US
★★★★★ 5
American flag dish
Color: 1 Pcs
Great size for my son's dresser. He like the flag and tray keeps his things neat.
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Reviewed in the United States on February 19, 2025
M
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Michael
Battle Creek, US
★★★★★ 5
Quality
Color: 1 Pcs
Good product. Great quality. Would recommend
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Reviewed in the United States on June 3, 2024
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Verified Purchase
Jessica
Charlottesville, US
★★★★★ 5
Quality Product, Definitely Recommend
Size: 17.2"L x 3.15"W x 0.78"H, Color: Black Walnut, Size: 17.2"L x 3.15"W x 0.78"H, Color: Black Walnut
Looks and feels great. Amazingly smooth, and well-crafted. It fits the length of my keyboard, and has quality grippers on the base to prevent sliding. Was actually really pleased with it.
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Reviewed in the United States on September 15, 2025
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JCF
Lake Worth, US
★★★★★ 5
High quality solid wood rest
Size: 14.4"L x 3.15"W x 0.78"H, Color: Black Walnut
This wrist rest is nicely finished and was well packed in high-density foam as well as a cardboard box that was wrapped very tightly in thick plastic. It's sanded very, very smooth and is made of beautiful solid walnut, with nonskid pads on the back. The branding is on the side that touches the keyboard, so it is not visible or obtrusive at all. My keyboard is 15.5 inches long, and the 14.4 inch rest looks great up against it. The 0.78" thickness is also very suitable for the thickness of my keyboard. The product gets 5 stars because it is accurately represented and this is entirely down to personal preference, but something about this rest that I don't love is the degree of incline. I have my keyboard up on the kickstands, and the wrist rest that I already owned slopes pretty dramatically starting from the middle, so it follows the angle of the keyboard. The ZQL wrist rest is about 75% flat and then has a small slope that rounds off on the bottom edge. Again, this is very much a personal thing; I just brought it up because it's something that people might not think too much about until they actually use it. I think this rest would be great for anyone with very large hands, or with a flat keyboard. It's taking a little getting used to for me, but I really enjoy the smoothness and obvious quality of the wood. A wrist rest is an ergonomic must when it comes to thicker keyboards.
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Reviewed in the United States on August 28, 2025
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Mr. Johnson
Alexandria, US
★★★★★ 5
Nice. I like that the wood feels cool to the touch
Size: 14.4"L x 3.15"W x 0.78"H, Color: Black Walnut, Size: 14.4"L x 3.15"W x 0.78"H, Color: Black Walnut
A nice little wooden wrist rest. I would suggest not using it as a wrist rest, but use it more as a palm rest, because if you are having pain, putting more pressure on those wrist tendons is not gonna help. Quality of the item is good. My biggest worry about wooden wrist rests is that they'll not be sanded well, or not smooth, and you'll get a sliver or catch your skin on a piece. Second biggest worry is that they will be slippery, and slide around the desk, or just be covered with a coating or finish that is sticky for human skin. I'm happy to say, that this didn't have those issues. Mine is smooth, and made of dense wood. It doesn't feel cheap and made with hollow wood. There are no burs or slivers. It's not lacquered or sticky for your hands. It doesn't stain my hands when in use. And it has rubber feet to help grip, so it doesn't slide around. One benefit to having a wood wrist rest, is that it stays "cool" to the touch longer than cloth or gel pads. But, at the same time, one heated, it takes longer to cool back down. I've found that I quite like the cool sensation that is unique to wood. I'm happy with it and the overall quality.
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Reviewed in the United States on August 5, 2025

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