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Weistec 3.0T EA839 W.3 Turbo Upgrade Audi A6/A7/A8/Q8/S4/S5/SQ5 | Porsche Cayenne/Macan/971 Panamera 2021-2023
$2199.00

Weistec EA839 W.3 Turbo Upgrade

If you're looking for a turbo upgrade that feels just like your stock setup but with a whole lot more power, the Weistec EA839 W.3 Turbo Upgrade is just what you need. This upgrade brings impressive gains across the power band while maintaining that familiar response you love.

Precision Engineering

Each factory turbocharger goes through a meticulous process of disassembly and inspection. Weistec's skilled team then machines the compressor cover and center cartridge to fit a state-of-the-art, 5-axis CNC machined billet impeller wheel. The best part? The exterior remains unchanged, ensuring your vehicle keeps its sleek, stock look. This new impeller wheel allows for greater power levels without compromising on spool time or response.

Quality Reassembly

After the upgrade, the turbochargers are reassembled with brand new seals and are fully balanced, guaranteeing smooth operation that meets OEM service life standards. Plus, all the original oil and coolant lines fit perfectly, making installation a breeze!

Key Features

  • Significant horsepower and torque gains, depending on your fuel and supporting modifications
  • 5-axis CNC machined for precision
  • High RPM balanced for flawless performance
  • Substantial power throughout the entire RPM range
  • Maintains a stock appearance once installed
  • 100% bolt-on installation for easy setup
  • Turbo Type: W.3 (Factory Upgrade)
  • Engine Family: EA839

Fitment

  • Audi C8 A6 (2019-2023)
  • Audi K8 A7 (2019-2020)
  • Audi D5 A8 (2019-2020)
  • Audi FY Q8 (2019-2020)
  • Audi B9 S4 (2018-2022)
  • Audi B9 S5 (2018-2019)
  • Audi FY SQ5 (2018-2019)
  • Porsche Cayenne (2019-2020)
  • Porsche Macan (2019-2020)
  • Porsche 971 Panamera (2017-2019)
  • Porsche 971 Panamera 4 (2017-2019)
Proposition 65

WARNING: Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov

Vehicle
2018-2020
Audi A6
2018-2021
Audi A6 Quattro
2019
Audi Q8
2017-2022
Audi S4
2018-2021
Audi S5
2016-2021
Audi SQ5
2019
Porsche 95B Macan
2017-2019
Porsche 971 Panamera
2019
Porsche Cayenne

What Is Weistec Engineering?

Based out of Orange County, California, Weistec Engineering is an industry leader in research, development, and design. While the company was only established in late 2010, founder Michael Weiss and his partner Steve Atneyel both have an impressive track record of working with some of the fastest and most powerful vehicles in the world. The duo were both engineers for major American OEM and aftermarket performance companies; Michael was involved with advanced engineering, while Steve specialized in computer calibration.

Michael Weiss and Steve Atneyel decided to branch out on their own and combine their expertise and experience. The pair were, and still remain, avid Mercedes enthusiast and realized that there was a huge gap in the market for a company dedicated to engineering state-of-the-art performance systems for cars powered by motors like the M156 and M159 AMG. Since its inception over a decade ago, Weistec has grown to provide customers with the highest level of satisfaction and value through unyielding tests and continuous improvements in Mercedes products and performance. 

What Does Weistec Offer?

Engineering and design are the two core services of Weistec Engineering. The Weistec team offers an array of services and capabilities thanks to the team’s combined experience from multiple fields. Whether you have a new idea or are looking to improve an existing design, Weistec can bring your concept to reality while protecting your vehicle’s design form and engineering function. Services include CAD, CAM, rapid prototyping, CNC machining, laser cutting and etching, casting, plastic injection molding, 3D laser scanning, and much more.

Weistec Engineering also offers a comprehensive line of products to the import and exotic market, covering vehicles such as Mercedes-Benz, Audi, Pagani, Alfa Romeo, BMW, McLaren, Ford, Aston Martin, and Maserati. No matter what type of upgrade you are looking for, Weistec has something for everyone when it comes to performance products, suspension parts, electrical components, interior/exterior accessories, and wheels/tires.

Weistec Engineering keeps nearly every aspect of its production process in house to guarantee only the highest quality. From conceptual 3D designs to in-house manufacturing and, ultimately, road and track testing, Weistec boasts relentless attention to detail on everything it offers. Specializing in computer-aided design and vehicle calibration, Weistec has the ability to manufacture quality products that are capable of withstanding even the most rigorous testing conditions. From OEM vehicle manufacturers to the aftermarket performance enthusiast, Weistec aims to deliver innovative solutions that address a wide range of client needs and desires. 

Find Weistec Parts at Vivid Racing

Vivid Racing carries an extensive lineup of Weistec products to suit all your needs and preferences. Our inventory is virtually endless with everything you could possibly need to upgrade your vehicle in terms of performance, power, handling, suspension, aesthetics, and accessories. If you cannot find what you are looking for above or need help choosing a product for your needs, please give us a call at (480) 966-3040. We will advise you on the possible options and walk you through the entire purchase process to ensure a hassle-free experience.

Weistec Limited Warranty

1. Warranty on Weistec Turbocharger Systems, Supercharger Systems, Exhaust Systems and Engine Accessories

12 month Weistec Limited Warranty. Valid 12 months from sales date with valid registration.The following exclusions apply to all Weistec Limited Warranties.

Weistec's limited warranties do not cover any of the following damages or items:
  • Damages to and/or failure of any non-Weistec component or equipment on a vehicle including, but not limited to, the engine, electrical system, transmission and differentials.
  • Damage caused by "Acts of God", normal wear and tear, or damage to a vehicle or engine caused by, tuning by others, collision and/or engine failure.
  • Any costs incurred for towing or downtime of the vehicle.
  • Any rental vehicle costs
  • Any labor costs to diagnose problems or to remove or replace the Weistec products; or any damage caused by the use of another company's product.
  • Any shipping costs.

We're currently collecting product reviews for this item. In the meantime, here are some company reviews from our past customers sharing their overall shopping experience.

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Jacob H. Verified Customer   
03-24-25 - Missouri, United States

Great support from Alan!! He’s a rockstar and super professional!

Recommend this Company
5 / 5
Juan R. Verified Customer   
03-24-25 - Indiana, United States

Good service definitely by again

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5 / 5
Dion C. Verified Customer   
03-24-25 - Washington, United States

Quick and easy

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5 / 5