Cunningham Motorsports Inc Review

best tuner in town! if it's a v8 it will have every last reliable horsepower squeezed out of it! customer service above and beyond!

Started off small earlier this year with a cam, e85 and a tune. Moved along to a SuperCharger and suspension and than fuel system, back to e85, forged bottom end and axles upgrades. Also threw on a breather to avoid blowing out the crankcase seals. Everything was discussed, planned and detailed out with CMS and Ryne and his staff guided me the right way to do it right.

The professionalism, the support and straight up car knowledge is on point. CMS knows what they are doing, they know how to tune and when I thought I had issues, their customer support was above and beyond what I had expected. It's hard to find a quality shop like CMS these days, but I am blessed to have them in my backyard.

My wife and I have 3 Corvettes, one c5 coupe, c5 Z06, and my 08 Z06. I wouldn't take them anywhere else. Ryne, on numerous occasions has recommended different upgrades for my car that i really enjoyed, and other items that I didn't need (that would just waste my money.) After he tuned the coupe and my Z06 they ran awesome! I can't wait to get my c5 z06 to his shop so he can do his "Magic!" I wouldn't trust anyone else. And a big shout out to Texas Mike!

Solid performance by solid people. They go out of their way to make you feel like you are top priority and I really liked that. Best tuner in CA right here.

Quality work. Would send any GM performance vehicle here. A+

These guys have tuning and performance down to a science. Not only do they have an awesome shop full of skilled mechanics, they build some of the most badass cars that break hearts and necks on the drag strip. They have worked on all our SEMA projects and have helped achieve great notoriety. Highly Recommend these guys!

I had a hard time finding a reliable GM performance shop around Southern California for my 2007 C6Z. After some research and phone calls, everyone pointed to Cunningham motorsports. I took my car there and everyone there was very friendly, knowledgeable, and honest. Had some work done to my car and my C6Z came out of there a completely different car. My car is a monster now! Going back there for E85 conversion and more! I would highly recommend this shop to all my friends and family!

Ryne and his staff are awesome and stand behind their work. If you want the best this is the place to go.

If you want to be given the cold shoulder and treated like livestock, this is the shop for you. Whether they are God's gift to the tuning world is open to interpretation. Their scheduling is disorganized, and their attitude clearly needs some "tuning" since I am not the first to post a disgruntled review. CMS is a good example of a shop who grew fast due to their forum presence, and the extremely high demand for LS tuning and modification services in the Socal region, but then let its popularity get to its head. Take a look at the attitude and arrogance behind their responses. Believe me there are plenty other unhappy customers who haven't found their way to Google reviews. Cue the "we can't find you in our customer database therefore your review cannot be substantiated" !!!

I am not familiar with their knowledge on GM but with Ford they showed nothing nor the willingness to satisfy the customer. The front man Terry is a flake. Do not trust anything he is saying as I witness him working other customers the way he worked me. I stayed 20 minutes in front of his counter 2 feet away and he did not noticed he has a customer. He was just working his texting.Pretty shamefully on Cunningham approach to customer satisfaction.
My personal experience is that they did not produce a workable tune which resulted in my engine failure.

After writing this review instead of fixing their bad work all Cunningham owner and employees wrote bad reviews on my company on line presents about services rendered by my company to them. They never had to deal with my company nor solicited services from it. All their complaints are fabrications. If this is their attitude toward business imagine the type of work they are going to do for you.
This company and its stuff is a danger to any customer and should not be in business.
They also wrote a response which is all lies. I wanted a working truck. They took the job. They were on the job for 1 day. They did not keep the appointment to fix the tune. They told me to try it and see how I like it. The truck broke.
I have no pleasure to start a feud with this type of dishonest people but also I hate the idea for them taking advantage of other people. They just wrote 4 false reviews on my company plus I witness first hand in their shop how bad Terry treats his other customers.