Sin City Performance

Josh just did a custom tune on my fuel injected 64 impala. All my driveability issues are fixed now! It used to hesitate, stumble, and run super rich. I had very little low end power also. They informed me of some issues I had with the throttle bracket/springs and vacuum routing. The repairs were minimal so I had them fix everything. I can't believe how much smoother it runs, and my wife is happy the garage doesn't smell like gas anymore! Thank you guys, I'll be back!!

I gave them not once, but two different opportunities to build by engine correctly since the first build my LQ9408 stroker it gave me nothing but problems last time I dropped it off. It Was more bad shape than when I dropped it up. I took it to leading edge performance they verified that it was not honed right and it was just put together very sloppy so it would’ve never ran right they do not want to take responsibility or pay me Any money back some more than likely I’m going to have to take them to court I have numerous of pictures to prove That they did not build it correctly and I’m not the one to take people to court. I would be happy if they were just to pay the shop what I spent to fix correctly. I also purchased a high-pressure oil pump And it was never used on my bill. I don’t know

The guys at Sin City Performance are amazing! Very professional, prompt, and knowledgeable when working on my custom ride. It's definitely a great place to take your special ride.💯

I had about $20,000 worth of work done to my 66 Elcamino by these guys. Nice people, but there work was terrible. Since the work was done, I have found multiple things that were not done, some of them could have caused a fatal accident. Front control arms with loose nuts, rear track arms installed upside down, Steering column installed incorrectly. Tuning not done properly, speedometer drive gear not installed with the correct housing, causing the gear to break. Multiple cases of loose nuts and bolts. When asked about these problems, I got nothing but excuses, and they refused to repair their mistakes. I believe they are now out of business, due to the roof collapsing on their shop. Even if they were still in business I would never use them or recommend their service to anyone.

I have a 99 corvette with a supercharger. I was looking to get it tuned to 500hp. They had a very competitive price. I had some issues with my setup. They were able to get the issues solved and tuned way faster than I thought. I will definitely be going back to this shop again. Josh was super helpful and awesome to have work on my car.