Achtuning

I usually don’t write reviews, but the Aughtuning team deserves a five star from me! Kelly was very welcoming when I got there but most importantly, he listened to me and asked the right questions. The team was able to diagnose a weird custom suspension noise even though some parts in my 997 are specialty and not common. They were upfront and very honest about everything we discussed and got me to love my car again in a couple of hours. We need more automotive shops like these in the PNW!

Kelly and the team at Ach Tuning are absolutely incredible to work with. My 2012 A7’s engine started knocking while getting some exhaust work done at another shop in their area. I had it towed to Ach Tuning and they figured out what was wrong with it by the end of the day (multiple cylinders misfiring due to flooded spark plugs), along with some other things that were way overdue to get replaced. On the drive home after picking it up, it started misfiring again. I had it towed back up to get the work checked, and everything they fixed was working properly. Kelly called me to let me know, and recommended taking the supercharger off to do some investigating (which they had recommended to do on the first visit but I chose not to). They ended up replacing the SC intercooler cores, a fuel rail/intake manifold that was previously repaired with epoxy, and redid all of the injector seals. I picked it up tonight and it has never run this well since I purchased the vehicle. I cannot speak highly enough of Kelly and Ach Tuning. They are incredibly knowledgeable, whether it’s diagnosing a problem or choosing which parts should be OEM and which should be aftermarket. Kelly is very communicative and will go out of his way to help you out. Thank you Kelly and thank you Ach Tuning!

Achtuning has been super helpful and straightforward. Insanely reliable shop, always true to their word. Kelly and staff are super friendly and knowledgeable. I personally would 10/10 recommend taking your German vehicle(s) here. My s3 is sitting super nice thanks to these guys.

I've taken my mk6 Golf R here a few times now, and they always exceed expectations. Kelly along with everyone there, are extremely honest and amazing at spotting concerns/issues. So far they have accurately diagnosed issues which I later fixed, as well as general servicing and tuning my car to Stage 2. Would highly recommend, and I will absolutely be coming back.

I recently had ACT Tuning install my Integrated Engineering downpipe on my Golf R, and I couldn’t be happier with the results. From start to finish, the team was professional, knowledgeable, and clearly experienced with performance VW builds. The communication was clear — they explained the process, addressed my questions, and kept me updated throughout the job. The installation itself was clean and precise, with attention to detail that gave me confidence everything was done right. They made sure there were no rattles, leaks, or fitment issues, and the car was returned exactly as promised. The performance improvement was immediate — quicker spool, better throttle response, and a deeper, more aggressive exhaust note. It really brought the Stage 2 setup to life. If you’re looking for a shop that knows performance VWs and does high-quality work, ACT Tuning is absolutely worth it. I’ll be coming back for future upgrades.