James and the team gave my car an extra 100 horsepower to the wheels for a great price and made it sound better than I could ever imagine. I had regrets of not getting an M8 but my 850 is faster and sounds better than one now. Highly recommend. I won’t take my cars anywhere else. Garage full of GTRs and Lambos; these guys are the heavy weights of SD

I had ACG install an Android-based infotainment system in my Nissan R35 GT-R to replace the OEM system. Unfortunately the install took much longer than expected due to a missing part and some quirks of my cars audio system but ACG worked overtime to finish it the same day since they knew Id driven a long way from out of town. I dont know of many shops that will work past closing time to ensure a customer leaves happy but ACG did so I definitely recommend them!

I have a specific Jaguar with a Performance Engine and with performance work done on the car explaining my issue to the mechanic who contacted me from the Tela secretary service that they run snapped at me and said if you dont let me talk I cant help you and all I was trying to explain to him as what my issue with my car is I dont know how he would be able to help me if I wouldnt be able to explain the issue Im going through Im willing to spend a certain amount of money on doing my car not an issue I have multiple Jaguars and the fact that this gentleman has no patience whatsoever when it comes down to somebody spending their hard-earned money on work shows me how unprofessional and how Unbecoming that shop is no wonder jba has been rated so much higher than ACG also if you go to their shop and no one is actually in their location and they have a sign on the door to call their teleservices which is not even directly related to the shop itself

Great fast cars...engines they build are fast!

Great service, nice shop. Had air conditioning inside, rare for auto shops. 10/10 would recommend.In all actuality, shop was well kept, customer service was top notch, was asked 3 times if I had been helped while I waited. Sean did a great job of taking care of my vehicle. Would come back any time I had a vehicular issue.

These guys are great and you can tell by all the exotics they have in their shop at all times. Theyve done wonders for me and are very reasonable when it comes to price and quality of work. They always go above and beyond the normal call of duty.

Shawn is one of the best Ive dealt with... When it comes to investing in your car, finding a reliable shop, that for the most part actually does things write and not half ass.. And is knowledgeable in their field of automotive repair,modification, and skill... Idea rather pay a little more for good work then pay twice redoing bad work done wrong the first time, like what tends to happen at these other shops... ACG KILLZ IT...TALK TO SHAWN....

Very unfriendly guy behind the locked door

The one shop ive brought my car and have had nothing but good things to say. They stand behind their work. If you have any issues and bring it up it is rectified quickly. My GTR has gone for a bolt on car to now what is 1300HP. James, Tal and Sean are able to answer if not find the answer you need!

Amazing people and quality work

The very best in San Diego!

Emily is awesome