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Home / Mercedes Benz

Mercedes Benz

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Most Popular

55 AMG Kompressor Tune
Rated 5.00 out of 5
$299.00 – $784.00
M156 Stage 1 Tune
Rated 5.00 out of 5
$699.00
A3 3.2 V6 Stage 1 Tune $599.00 – $898.00
575 $1,899.00
X6 35i N55 ECU Tune $699.00

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Email
sales@raceiqperformance.us
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833-2RACEIQ (833-272-2347)
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3655 James Rd.
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Acworth, GA 30102

Reviews

Race IQ Performance

3.5

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Alex Caruso Gonzales

2019-04-29T23:27:02+0000

My E55 ran like a bag of sand, seriously appreciate these guys helping me out and finding out what the real problem was! Genuine and friendly staff and they have some serious stopping power when it comes to their Tuning and Performance!! Thanks so much guys I appreciate you guys so much! I now enjoy my car again! Could not stop smiling on the drive home!read more

Paul Dyer

2019-03-14T17:31:40+0000

Tuned my e55 amg with 70mm FPS 550cc injectors Mid lengths Race cats 82mm throttle body X pipe Killer chiller Awesome work and car runs greatread more

Brian Bf

2019-02-19T04:44:14+0000

Top Notch customer Service .! Very detail oriented , with any little issue . Won’t keep you waiting on re-tunes for weeks , while your car sits . Very personable , like a member of your family .read more

Billy Bubenick

2019-02-19T03:48:48+0000

100% hands down the best. The owner is extremely knowledgeable and takes the time to answer all your questions. The work he does is top notch. He is military friendly. Thank you for the great work. Semper Firead more

Hayden Hardie

2019-02-19T01:47:31+0000

Great tunes and great customer service. Simply the best.read more

Vasilis Papavangjelis

2019-02-19T00:07:10+0000

Tony at IQ is the man! Great customer service and his products are on point!read more

Jagdeep Sekhon

2019-02-18T19:02:46+0000

Anthony, appreciate your help with modding my car. I was on the edge with getting a FSP. But you tuning was awesome. Instant power no delay. Feels like a whole new car now. AFR was dead on too. Awesome ECU and TCU tune !! Keep up the good work!!read more

James Wall

2019-02-18T17:23:36+0000

Had an absolutely horrible experience with this company. $1100 40whp dyno tune for my S65 and then another under performing tune on my 2014 E63. Absolute horrible costumer service and even worse ethics.read more

Kai Schuler

2019-02-17T16:07:34+0000

The tune for my e55 amg is great. The car runs like a beast. The process was flawless and the support for questions perfect. Any time again . Greetings from Germanyread more

Christian Kim

2019-02-01T00:47:07+0000

Tony has tuned my e63 and now my Amg gts. He’s a perfectionist and his tunes are amazing. I recommend him highly!read more

Alexander Stratton

2018-12-04T21:10:58+0000

Just finished the work on our shop car, 2015 E63S, at @strattonmotorcars. After months of searching, getting feedback from the AMG community and calling around to all the major tuners about our plans, we chose Race IQ. Tony and Lukas were great to work with and added a ton of value about the build plan. The level of attention, knowledge and customer service was on point. We ended up installing Race IQ down pipes and mid pipes, Race IQ tune, UPD intake and a Killer Chiller. The car performs amazing! How the tune performs was exactly how I asked with the right amount of pops coming off throttle. Power, drivability and throttle response is incredible. Will be putting back on the dyno for final numbers and No Fly Zone in AZ in a couple weeks. I’ll post the results soon!read more

Brent Khelawan

2018-11-30T23:02:30+0000

Installed a fixed pulley on M113k supercharged motor. Received a tune from Race IQ, and my car runs perfectly. Installation of the program on my PC was very simple, and received my tune via email. Very good customer service and communication. Thank you Race IQread more

Jorge Alberto Pelcastre Jimenez

2018-11-10T00:46:14+0000

big thanks to tony,did a pulley,ECU and TCU on my E55,can feel the extra power and the tcu works awesome,shifts smoother and gears are there when needed it,oh and btw love those POPS,highly recommended,he’s very good at it.👍👍👍read more

Jerry Grubb

2018-11-08T18:46:44+0000

They actually know what they are doing including exotic cars and the customer service is way more than u would even hope for!!read more

Michael Bernklau

2018-10-20T22:50:32+0000

RaceIQ is number one in quality, performance and customer service. Both Anthony and Lukas are always on point when it comes to customer service. Lukas has always made it a point to help out with questions or problems that I’ve had at all times. Weekday or weekend he’s always willing to help. If your wanting the best for your Car then RaceIQ is the answer 👍read more

Dustin Brown

2018-10-12T19:57:08+0000

very happy with both the service and the product I've received from raceiq with Tony. very responsive, helpful, and my car performs phenomenally. will use them again in the future when I take the next steps in my build.read more

Robert Hamilton

2018-09-05T16:42:15+0000

Tony and Lukas have been so helpful and responsive to all my questions and concerns. Switching over to Race IQ Performance is the best thing I’ve done for my C55 and CLS55. Both cars were both tuned before, C55 by Europower and CLS55 by Eurocharged. Just after uploading the tune to both you can tell a difference right away as soon as you turn the key. Car runs and start ups are a lot smoother and then when you hit it the power band is a lot smoother and stronger. No more hard jerking from the car and even the shifts are smooth and go along with it. You can feel the new tune right away and it’s awesome! The best part is that Tony also takes the time to really customize you tune and opens it up to your likes. He also added Pops and Bangs to the AMG’s and this just makes the cars sound like a complete different monster. I want to say thanks again Tony and Lukas for all your help on everything and for the best tunes I could get on my AMG’s. And If you haven’t made the switch yet, I don’t know what you are waiting for!read more

Adnan Siddiqui

2018-09-02T01:06:31+0000

Outstanding customer service by Tony, I had the stage 1 tune and I was very pleased with it, few weeks ago updated the tune since new mods were installed and I am VERY satisfied with the results. Highly recommend RaceIQ , you won't be disappointedread more

Alex Dabbaghian

2018-08-29T20:36:37+0000

Huge shoutout to Anthony i truly appreciate his time and patience I had an issue with my tune and he fixed it right away car runs like stock till you punch it! Never had such a good experience with another in this situation keep it up Anthony!read more

Adnan Siddiqui

2018-08-26T22:48:44+0000

Outstanding customer service by Tony, I had the stage 1 tune and I was very pleased with it, few weeks ago updated the tune since new mods were installed and I am VERY satisfied with the results. Highly recommend RaceIQ , you won't be disappointedread more

Chia ChuKou Vang

2018-08-22T03:25:11+0000

Anthony is probably the most knowledgeable tuner for our Amg cars. He responded within hours especially if you needed files for tuning. My car performs better and exceeds my expectation after a tune with RaceIQ. I never expected with just a tune can make my engine come alive and roaring like a lion! I'm definitely sold on RaceIQ and how great my car performs for me, crazy scary fast!read more

Maty Blanton

2018-07-26T02:15:00+0000

Awesome service! Tony was very knowledgeable and worked hard to meet all of my vehicle’s needs. I highly recommend his services!read more

Ben Rice

2018-07-23T15:48:11+0000

Anthony did an awesome job and worked through a number of issues with me.read more

Brenden Axtell

2018-07-09T18:51:41+0000

Anthony tuned my one of a kind project when other companies turned me down. He definitely knows his stuff when it comes to tuning and was a great help! Big thanks for all your help and knowledge.read more

Amg Nguyen

2018-06-20T01:20:06+0000

Tony hooked up my stock e55 with the stage 1 Race iQ ecu and tcu tune. Car now shifts quicker and smoother. Very happy with tune and thanks Tony again for getting me in such short notice. Can’t wait for further modificationsread more

Majid Soofi

2018-06-19T18:57:14+0000

Tony and Lukas are probably the most bad ass tuners in merc community. Very helpful, very friendly and for sure they know their shit very well. Got my e55 flashed with the 77mm pulley and boy the car pulls like a freight train. I have lots of upgrades coming up including the weistec SC and I would definitely hit up these guys for my tune.... Highly recommended. Thanks Tony and Lucas!read more

Chuba Amadi

2018-06-18T16:24:04+0000

Accountability and follow-through need drastic improvement. I had an extensive motor rebuild with a Pag Parts Turbo EFR 6758 big turbo kit being installed on my 2012 Volkswagen CC. When the car was put back together and Race IQ tasked to do the tune, the tuning process took 2 weeks. After that tuning process, it was discovered that the car could not operate with the MAF sensor connected because the MAF had not been scaled. This should have been the very first thing done in order to provide a fully comprehensive tune. A few months later, I schedule a dyno session with RaceIQ. They were almost an hour late and no adjustments to the tune could be saved because the MAF was STILL not scaled. Nonetheless, I was charged for services. Months after that, I handed the car over to RaceIQ for what was supposed to be a one week process to scale the MAF. 3 weeks later, there was no progress with that. Frustrated, I sought the counsel of other tuners in an attempt to get the MAF scaled so the car could pass emissions. Race IQ refuses to collaborate with outside tuners or share information even though they are unable to actually complete the service I've been charged for. It has been 2 years and I have had to endure numerous traffic stops, fines, additional money spent with separate tuners, time invested having to get repeated temporary exemptions in order to renew my tag, and finally, having to use an alternate car as a daily driver. To say that I have been patient and tried to work with Tony these past 2 years is an understatement. Now, no longer responding to my calls, I feel that I am clearly not and never have been a priority as a customer and have not been made whole. I have been given a half-complete product/service and I will make efforts to ensure that none of my peers do business with this establishment. For those who have had success, I salute you. However, I will make sure to repeat my experience and the facts. I shouldn't have to wait weeks, months, or years for a tune to be done PROPERLY on a car. I should not have to independently seek the consult of other tuners because of a dismissive unwillingness to even make things right. There is a lack of customer service in this regard and a huge accountability problem.read more

Elliot Kazan

2018-06-15T18:08:18+0000

I had my E55 AMG at three different shops for over 7 months not one could get the vehicle running right. I took it to Anthony lawshee at RaceIQ, the vehicle is amazing now! Thank you to RaceIQ they do amazing work!read more

Jonny Onu Corduneanu

2018-04-19T19:18:53+0000

Best in Town got some tuning done to my SL55 looking foreword for the rest soon:)) Keep up the good work.read more

Pieter Schepers

2018-04-09T20:53:12+0000

RaceIQ just tuned my 76mm pulley E55 and I'm very happy with it. Great service and product :)read more

Amel Omeralovic

2018-04-09T03:02:45+0000

Switched over from eurocharged to race iq on my 2006 cls55 Amg and couldn’t be happier! Car makes amazing power and has a real strong power band!! No more throttle lag!! I always feel instant power as to with my previous tune I always felt lag even without heat soak! Tony’s the man!! Asked a million questions and got every answer I needed! From the tune to customer support race iq is the one stop shop!!��read more

Michael Watkins

2018-03-17T06:03:46+0000

I love the stage one tune. Had some issues trying to install it, but after contacting Anthony he was able to square me away. Real good tune ship and customer service.read more

Don Richards

2018-03-13T13:57:24+0000

I bought a 84 mm pulley, a belt wrap kit, and a tune from RaceIQ. It took me about an hour to install the belt wrap. Kit, and about 30 min to install the pulley. The tune was simply plug and play. Wow! I was blown away at the power it made. Incredible! Can't keep back tires on my car now! LOL! These guys really know what they are doing. I'm impressed. I want the cams next!read more

Dalton Foland

2018-02-22T23:30:12+0000

Recently purchased one of the RaceIQ TCU tunes and I absolutely love it. Trans feels amazing, extremely clean and fast shifts. I would highly recommend the first thing you do to your E55 is getting a TCU tune from RaceIQ!read more

Michael Karp

2018-02-11T21:28:44+0000

Great job handling the emissions issues on my Sprinter!read more

Darian Weaver

2018-02-10T15:46:50+0000

Finally after 2 turners, the car just laid down some killer power!! I called Anthony Lawshee from Race IQ, after 2 supposed top notch tuners couldn't make power. Can't say enough about this guy, top notch, professional, and passionate about making the numbers and making his customers happy. We made one stock run, and 2 with tune. 606rwhp/ 727rwtq. If you want your car done right call Anthony at Race IQ!!read more

Mensur Sulic

2018-01-09T22:26:18+0000

Had my car retuned by Tony and definitely a better tune. Felt the car pull so much better and harder.read more

Prunelie Elie

2018-01-09T03:11:18+0000

I am posting this review on behalf of my friend Chantale, the owner of an Audi A5 and customer of RaceIQ, since she is not a Facebook user. The experience with Anthony and RaceIQ was simply outstanding. I was referred to him by a good friend of mine who was appalled at the quote given to me by my dealership to replace my clutch system. The cost was simply astronomical. He stated to me that he was sure RaceIQ could take much better care of me in cost and quality of service. That Saturday, Anthony contacted me and I conveyed the issues pertaining to my car. Although it was the holiday season, he quickly came back with two quotes, with and without flywheel, with the use of OEM parts. Considering that it is an Audi and there is an expectation for repairs to be costly, his quote was satisfactory but let me clarify that it was not cheap. I accepted the cost and he requested to have the car Tuesday after the holidays. The car was delivered to him on Wednesday and by Thursday evening the work was already completed. Since I did not have transportation to get to the garage to retrieve my vehicle, Anthony agreed to come and get me in the Vinnings area and we made our way back to his garage where he showed me the damaged clutch and worn out flywheel (as if I knew anything about the state of these things) and explained how my driving had impacted both entities. Words cannot explain how it felt to drive my car once I left his garage. So smooth. He even gave me recommendations regarding the use of my clutch to prolong the life of the overall system. I never write reviews - as I have no social media presence- but I felt compelled to do so. When dealing with RaceIQ you will get knowledge, exceptional workmanship and reasonable costs. I highly recommend this garage.read more

EJ Smitty

2018-01-07T01:05:55+0000

Tony installed pulley, split cooling system, and tuning for my 2005 sl55 and the car is like night and day. He is very knowledgeable and breaks everything down so you can understand. I couldn't be more pleased. I will definitely be back this spring for more upgrades!read more

Gabe Lepeak

2017-12-27T21:17:54+0000

Tony's tunes are smooth and powerful. Customer service is also second to none. I would recommend anyone to go through RaceIQ for their m113k tuning needs. Looking forward to scheduling a custom Dyno tune sometime in the near future!read more

Jason Byrd

2017-12-15T00:43:03+0000

I got a tune from RaceIQ for my E55 and the results have exceeded my expectations! Mr. Lawshee went above and beyond to answer all of my questions promptly. The AMG community is lucky to have him!read more

Brian Bf

2017-11-28T19:15:18+0000

Really good tuner . I️ have tried every tuner in the market . Have over 10 tunes . Nothing compares to the Race IQ Fsp tune ! Haven’t switched my tune in a while . In fact getting a custom dyno tune this week from Race IQ ! Responds to all emails and addresses any concerns . Couldn’t be happierread more

Eduardo Almeida Carvalho

2017-09-19T21:21:22+0000

This is best choice I made tuning my 135i drift car with a professional guy like tony! I am very happy with the results 390whp on 135i thank u very much !!! �read more

Jose Medina

2017-09-16T23:12:19+0000

Tony did a great job tuning my Audi a4! Recommend him tuning other people's cars! Car runs great. Like the stage II tune �read more

Phil Filippou

2017-09-13T18:37:38+0000

Tuned my project w203 with m113k engine. Truly a great tuner. Exceptional customer service. Quick response and takes great care of his clients. I recommended him to my cousin with a CLK63. Wound up tuning his also.read more

Chris Young

2017-09-13T01:08:56+0000

I I purchased the stage 1 tune for my E55 AMG. Everything was handled and extremely timely fashion and when I had an issue connecting the tuning cable to my laptop Tony stepped right in and got it taken care of immediately. The car feels so much better thanks to Race IQ. I look forward to doing future business with them during my upgrade process on my vehicle.read more

Michael Guerrero

2017-09-06T04:16:56+0000

The most professional and dedicated company I have ever been lucky enough to do business with. Very responsive to emails or messages but more importantly the products they provide are second to none. I'm very happy with my E55 AMG Cams and Tunes. Thank you Anthony!read more

Ryan Mohammed

2017-09-01T04:55:19+0000

I'll never mod another Mercedes unless it's with raceiq. Anthony has topped the charts with customer service and quality. Plus my old horse (05 e500 with 190k) feels soooo different! Thanks so much Anthony, you've been great and I'll always recommend you!read more

Alex Arias

2017-09-01T01:47:04+0000

Wouldn't let anyone else touch my car, Anthony is a genius with his work. I've had previous tunes on my M cars, and Race IQ is far superior. Thanks again Anthony! Looking forward to continue doing business with you, customer for life.read more

Peter Condes

2017-08-28T17:36:17+0000

The car has never ran or performed better picked up 54 rear wheel hp and 75tq. couldnt be happierread more

Vipin Dhoot

2017-08-26T16:23:58+0000

Man, I got mad respect for Tony and his team at Race IQ. These guys are very helpful and answer all your questions almost instantaneously. I loved doing business with them and without a doubt, I would do business with them again. Tony is the "man" for your tuning needs guys!read more

Muhammad Mughal

2017-08-20T02:28:15+0000

Tony is one of the best people I have ever worked with. My raceiq e55 has some amazing numbers because of the knowledge and experience that he has. I look forward to working with raceiq for my next modification. There is no one else than can do what Raceiq does!read more

Wane Mourn

2017-08-18T02:09:18+0000

Tony is the best period! You are just crazy if you take your car anywhere but RaceIQ. I will never take my e55 to anyone but tony. i will drive any distance any miles just to let this awesome guy work on my baby. Thanks Tony!read more

Jessica Heath

2017-08-10T14:11:48+0000

There's a reason Tony at Race IQ has 5 out of 5 stars. He installed a tune on my E55 late at night with no notice and it's perfect along with his customer service. I couldn't ask for anything more. You can tell he really takes pride in his work. I would recommend Tony and Race IQ for anything he sells bc I'm sure it's nothing but the best.read more

Lister Liebenberg

2017-08-04T18:13:29+0000

Wanted to personally thank Anthony from Race IQ, for being so kind to help me with my ML55 getting the tune loaded up, great customer service and fantastic product of a tune with a noticeable change in power, torque and throttle responce...... thanks again Race IQ Performance for all the efforts not to mention all the trouble we had with the ME 2.0read more

James Creighton

2017-08-03T15:48:21+0000

Tony is a great guy to work with. Quick with his responses, almost like he drops everything for you. Highly highly recommend for any of your tuning needs!read more

Sean O'Leary

2017-08-03T00:47:55+0000

Worked with Race IQ on a tune for my E55. I logged it extensively and had some idea of what I wanted. Ordered a tune for a 77mm FSP and it was perfect right out of the box! AFR's were steady and right where I thought they should be. Timiing was rock steady and again, right where I wanted to be. I sent no logs or any other info besides the pulley size. Extremely pleased with the results and will recommend to anyone looking for a tuner that knows what they are doing and understands how these cars are driven!read more

Patrick Bennings

2017-07-28T02:21:57+0000

Tony tuned my e55 a few months ago and the tune has been spot on. Not only is he providing quality product, but his customer service is great as well. He came out to my house, explained the process, and answered all my amateur questions. I would highly recommend Tony to tune your car.read more

Mary M. Babak

2017-07-18T20:50:00+0000

I can't say enough about RaceIQ Performance and Anthony! I was running one of their competitors tunes and I wasn't very happy, I thought why not give Race IQ a try, and I am so glad I did! As soon as I uploaded their tune, I took my car for a drive and it is a night and day difference! My car is faster, stronger and my engine feels healthier! If you are thinking of getting a tune for your car or if you aren't happy with your current tune don't waste any more time! Call Race IQ, YOU WONT REGRET IT!!!!read more

John Socks Iasiello

2017-07-18T01:07:27+0000

Tony has put up with all of my odd ball questions, even at odd hours of the night. His customer service is top notch. Car feels like a different animal after his ECU and TCU tune. Highly recommend. Can't wait to get my cams and heads back.read more

Alex Geiger

2017-07-16T07:17:15+0000

I use to have a oe tune changed to a Race IQ ,I love it runs a lot better and I went from 18mpg on the highway to 24 mpg highway and 18 in town .can't wait to see how it does in November at spring mountain race park on track day running with the pca group again . Thanks Tony:-)read more

Jessica E Totten

2017-07-15T21:50:34+0000

I have a 2013 Genesis coupe. Tony did awesome job with the tune and all around does great work. Thank u!!read more

Jirk Dunkwinkle

2017-07-15T19:03:40+0000

Just got the E46 M3 back after an El Diablo Exhaust, Cold air intake, and Tony's tuning wizardry... Fun, fun fun. Performing fantastic. Thanks Tony!read more

Omar Foster

2017-07-14T23:14:34+0000

Tony tuned my 2003 s600 and released the cars true v12tt potential. I've had ZERO issues with it and whenever I've had questions in regards to performance upgrades Tony is ALWAYS quick to respond. Customer service is superb! Less than a year after getting an ECU tune I decided to get a Race IQ TCU tune as well. My shop, Silver Arrows Motors in Las Vegas removed my TCU, shipped it to Tony and it was back and done in less than a week. Would recommend a Race IQ tune to anyone looking to make some real gains.read more

Travis DeLuca

2017-07-12T20:38:35+0000

Top notch! Anthony is very responsive and quick with his replies. My cars bucking has almost completely gone with his new tune. The car has a little more pep the previous tuners file.read more

David Reilly

2017-07-11T04:50:25+0000

I was between a couple tuners for a re-tune on my E55 and finally ended up going with RaceIQ. I couldn't be happier. The car has not only picked up power, but the drivability has improved significantly. With an aggressive pulley comes the issue of the car bucking under increased throttle, an issue that has always bothered me. While it is not entirely gone (and as Anthony explained, it most likely never will be - nature of the beast) it has improved significantly from how it was previously. The car is now much more enjoyable to drive all around. As far as customer service goes, I would say Anthony is unmatched. I sent my mod list in on Sunday, and received the tune Monday. He also thoroughly answered all questions that I had. I would recommend RaceIQ over any other m113k tuner.read more

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