About Achtuning


We install what we sell... We STOCK what we sell!

What Achtuning means

Our name is derived from the German word "ACHTUNG", which translates to attention or respect in English. Combine "Achtung" with the word "Tuning" and you have Achtuning ... pronounced 'Ock-tuning'. If you own a German car, take a look inside your engine compartment sometime; you'll find "Achtung!" all over the engine bay!


Achtuning was founded in 2001 by Joshua Decker and Ben Moses. It all started with a shift knob that Joshua began to import from Germany and sell online. Soon after, he found himself importing everything from turbos to complete RS4 body kits. This hobby turned into a full time passion and Achtuning was born. Josh began his German-car journey with his first VW, a 1986 VW Jetta GLI. Since then he has owned numerous Audi and VW models. Josh sold Achtuning to Bill Spencer, owner of Hartmann Wheels, in 2006. "This is a great opportunity for everyone involved," Josh said about the sale of the business. "Bill has the resources and solid customer service reputation needed to see the Achtuning brand achieve it's full potential. I'm sad to leave but I'm excited to know that the name I created will live on and become the success I always imaged it could be." In 2009 Josh founded a new internet forum for Audi enthusiasts, QuattroWorld ( which is already one of the top Audi forums on the internet.

Current Ownership

Achtuning is currently owned by Bill Spencer of Hartmann Wheels. With more than 28 years of professional experience tuning German cars Bill quickly turned Achtuning into the power house it is today. He has owned an innumerable number of German cars and is comfortable working on any of them. Bill's latest projects include an APR tuned 500hp "Stage 4" VW Golf R and K04'd Audi A3, both of which are tracked regularly - putting to the test the quality parts offered through Achtuning.

What we do

Achtuning specializes in the distribution and installation of quality parts from APR, AWE Tuning, H&R, Hartmann Wheels, and StopTech. We are the largest stocking distributor of these quality brands, keeping our inventory on site for immediate shipment or installation for the benefit of our customers, the European car community. Unlike the typical online parts store, Achtuning has a physical store front in Redmond, WA (very close to the Microsoft campus) to offer a complete range of services for our European car enthusiasts. We’ve even expanded Internationally with an Achtuning store in Korea! Because of our “brick and mortar” facilities and dedication to keeping parts on hand for the benefit of our customers, we have been established as top distributors of the quality brands we offer!

Our Facility

Our 27,000 square foot Redmond Washington facility houses our offices, retail showroom, warehouse, and 4 lift installation bay. We stock an extremely high volume of parts here, more than almost every other European shop in the US, so orders can be shipped out same-day. We have the stock level, capital reserves, and strong manufacturer relations to process your order without delay.


Achtuning has a staff of 10, with a combined 120 years of experience on German vehicles. Every one of our staff own one or more German cars and everyone here has some experience working on them. Our staff's current / past ownership of German cars include:

  • Audi R8
  • Audi B8 A4
  • Audi B8 Q5
  • Audi A3
  • Audi RS6
  • Audi B6 A4
  • Audi B5 S4
  • Audi B5 A4
  • Audi C5 A6
  • Audi C5 A6 4.2L
  • Audi allroad
  • Audi Ur S6
  • Audi Ur S4
  • Audi V8 Quattro
  • Audi 5000
  • Audi 4000
  • Audi Coupe GT
  • BMW E36 M3
  • BMW E46 M3
  • BMW E36 3-Series
  • Volkswagen Golf R
  • Volkswagen CC
  • Volkswagen MkV R32
  • Volkswagen MkV Golf
  • Volkswagen MkV Jetta
  • Volkswagen MkIV Golf
  • Volkswagen MkIV Jetta
  • Volkswagen MkIII Golf
  • Volkswagen Corrado
  • Volkswagen Cabriolet
  • Volkswagen MkII Golf
  • Volkswagen MkII Jetta
  • Volkswagen MkII Scirocco
  • Volkswagen MkI Rabbit
We can be reached via phone (1-877-722-4886) or E-mail ( from 9AM-6PM PST M-F to help you with any questions or concerns about our products or service. We strive to provide the best customer service possible.

Community support

Achtuning is a proud sponsor of many local shows and events. We also sponsor several online forums such as, and Achtuning is a sponsor of ACNW, Audi Club Northwest, the largest Audi enthusiast community in the PNW. ACNW offers many track days, driving instruction and other fun events for Audi enthusiasts.

Future plans

We are growing fast and look forward to the exciting years ahead. We would love to tell you more about us! Stop by our shop in Redmond or give us a call today!

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