ESS TuningReviews of esstuning.com

I told customer service that I did not like the clamps that were included with the coolant lines on the BMW S65 kit and they got super offended and told me to remove the kit and send it back. They also included a template made out of a grocery bag to cut out my air duct. After I purchased the kit, they listed the option to purchase the air duct right after which makes no sense. Whoever is running that side of the company is a total nut also claiming that I sent them 75+ emails is total BS. The first 15 emails were asking them questions about the kit because I'm about to spend a lot of money and I want to make sure I'm getting something I'm satisfied with. Please update your terms on your website so customers know they can't state their personal opinion on something as simple as coolant clamps or else the kit will need to be removed and sent back and support will no longer be available.

Matey boy was meant to be professionally restoring wheels They had light scratches and 1 wheel was cracked The weld wasnt straight smooth Scratches were still there after wheels returned Terrible services BEWARE!!

Definitely the worst kit I've ever purchased. - Parts received did not match advertised pictures or packing list. ESS stated that packing list was old & not updated. - Stopped responding to emails. Only gave the option to return the kit or go with out any future support. - Did not include the correct bypass valve, hoses or fittings. - Supercharger did not fit on bracket properly, intercooler was missing heli-coils, hood strut crushes silicone hose, MAF extension or Barometric break out not included. - Vehicle throws codes for Barometric sensor out of range. I have no idea how they got this CARB certified, wouldn't recommend it to anyone.

Dear Ess tuning Team, I hope this message finds you well. I wanted to bring to your attention a recent issue I experienced regarding my purchase and return process. I previously purchased two items from your company and, after selling my vehicles, I contacted your team to request a discount on a new tune for my new car. I was informed that if I returned both cables, I would receive a discount on the new one. I followed those instructions, returned both cables, and purchased the new cable. However, my payment was held for a week, and I was told it was pending clearance. When I reached out for an update, I was told that I was “too much” and that you could no longer do business with me. Additionally, my returned cables were never refunded or sent back to me. This experience has been extremely disappointing and unprofessional. I would appreciate it if someone could review this matter and issue a resolution or refund for the returned cables as soon as possible. Thank you for your time and understanding. I look forward to your prompt response. Sincerely, Derick C

Worst ever. I bought a g1 supercharger from them and I upgraded after some days to g1+. I told them that it doesn’t make the boost they claim and if i go smaller pulley we can make that and to send me software for 9psi. Their answer was: I do not like the demanding tone here though, how about I end all your support and you go f…. yourself instead? They have no manners and they will soon loose it for sure. I will post in every forum Audi/Bmw to notify people and avoid them. They dont deserve it.

Had issues with fuel system from the start guy helping me quit then owner wants to tell me to kick rocks on any help told me not to buy ess products again horrible customer service they don't care about you once u purchase

I purchased an ESS Transmission tune for my 2007 BMW M6 about a year ago. They're Ad reads, "Optimized SMG transmission software. Increases shift firmness in S4/5/6 and increases launch control RPM to 4100RPM on US spec M5/M6's." Flashing the new software to the transmission was easy enough once they sent me the correct windows 10 driver. But since then I've had the SMG transmission software returned to stock twice by the BMW dealership. Once when they replaced the clutch and once when they replaced the the driveshaft position sensor. Both times I re-flashed the Transmission with the ESS Software and after running laps on the car before and after, as hard as I've tried, I honestly CANNOT tell the difference between one or the other. ESS's software does change the launch RPM's to 4100, but it seems kinda stupid to shell out almost $600, when you can make the same change by downloading WinKFP for free and springing for a $15 obo cable on ebay. If you own a BMW E63/64, with an SMG transmission, I do NOT recommend this upgrade.

Terrible communication, acting like children on an ego trip. Don't you dare tell them wrong, or even make simple requests. They will tell you how they are right and they can choose who they want to do business with. I'm only rating the communication and customer service here, the hardware and tunes are otherwise great.