RENNtech, Inc. 7825 Southwest Ellipse Way, Stuart, FL 34997

"I had been working with Kellen since I bought my CLS550. I learned he was no longer there and Mitch took over. Mitch and I communicated via email in regards to installing their Diverter Valve Kit on my car. He was able to squeeze me in before I left FL. As Kellen always had done, Mitch gave me a tour of the facility and we checked out some pretty neat cars while my car was being worked on. I even got to meet the living legend, Hartmut Feyhl! After my car was done, they washed it and I was ready to hit the road. Once I accelerated, I heard that “fart” … man it was so satisfying!!! Thanks again Hartmut, Mitch and Team for an amazing job! This was my 3rd Renntech Upgrade and I’ve been super happy so far."

"Awful customer service. Will make it hard to even return parts even when they ship the wrong part! Don't believe me read their reviews. Found the correct BOVs for my 63 and 110.00 dollars cheaper."

"We've had the best experience, thank you John, for the multiple times you've helped me with our 2021 Mercedes Sprinter. We are tuned and ready for our 6,000 mile road trip! We highly recommend Renntech to anyone ready to elevate their sluggish Sprinter!"

"Pretty sick shop they got going on here. I was told I couldn’t photograph the following pictures but I mean who’s to say I can’t photograph what! I’m a photographer! (: I also applied for a job here years ago and was given no follow up at all, but have since moved to way bigger and better things (shoot for NASCAR now) All in all, cool company, they were chill with my us doing burnouts and donuts here from time to time at night, but by permission only."

"Without a doubt one of the most professional auto tuning companies anywhere in the world. From the moment you arrive, you are treated to white glove service. Impressive showroom, fantastic work bays, pristinely clean, and they go out of their way to make you fell valued as a client. This is our 3rd Sprinter that I have had tuned with them, and each time the vehicle performance has been totally transformed to pure awesomeness! Also worth commenting was that my wife was also treated with the same respect when she took our van there, something that doesn't happen too often to female customers in the auto industry. Wish ALL auto shops would take a page out of Renntech's customer service manual! Thanks guys, you have a customer for life"