MTI Racing

Fantastic service, professionalism, and completely customer focused. I used one LS Tuner in the area and they were a flop. I spent just over $18,000 in last 4 years with them. I could not get any problem solutions from them because "they" could not duplicate the problems. MTI, "Will", just asked for the problems. MTI identified the root causes and solved the problems; no duplication actions on my part required. MTI solves the problems. I had them re-tune my very, rare 2009 Pontiac G8 GXP; it is faster, perfectly reliable, screams at 620 hp and no problems!!!!!!

Will and the MTI "gang" will positively improve your car's performance with superb mechanical knowledge and professionalism. Another "tuner" in Woodstock, Georgia originally put a Magnuson supercharger on my Pontiac G8 GXP. Their follow ups on my problems with the "tune" and performance of the vehicle were less than satisfactory. MTI Racing completely turned those problems into great solutions. Try out MTI Racing before you decide on another "tuner". You won't be disappointed.

Had a corsa exhaust installed on my C8 it was great. Will and the guys at the shop do great work

Amazing customer service, work and people! I have been to a few other well known shops in the area and always left those shops disappointed in the service. At MTI, I received multiple updates on my vehicle each week while it was there without asking for it. Always very honest and transparent with what is happening to the car. You can tell MTI works to form a lasting relationship and not try and over sell you to make a few extra dollars. Highly recommended!

Was dealing with an exhaust issue that was throwing a check engine light. Went to the dealership who not only misdiagnosed the issue, but also wanted 3x for their "fix" compared to what the crew at MTI did it for. Extremely knowledgeable and friendly crew, would recommend and will be back for future services.

I only had them do a small machining job but they did it perfectly and in a very timely manner. I had a steering wheel for an old Ford I wanted repurposed for my bmw 2002. I would highly recommend them!

Very cool place. Tons of proformance parts for your Vette. My son purchased a Six Shooter for my C5 Z06. Easy install & Great shifting characteristics. I love mine. They also do proformance upgrades as well as field basically from what I understand to be a 6 Corvette race team.. How cool is that!

Great service and people! They ported my ls1 throttle body, and did a stellar job. Extremely fast turn around. Will definitely use them again.

Over the last 10 or so years MTI built my c5 corvette, c6 corvette, and now my 2021 hellcat. I can say that their Dodge work met all my expectations based on the work they had done to my corvettes in the past. I started with their hellcat stage 1 package and custom exhaust. Now I get to bully all the corvettes and hellcats! Only performance shop I go to.

I had a quick question about my 5.7 Charger. They were super knowledgeable and I was most impressed by their enthusiasm. They don’t upsell and they will cater to your needs no matter your budget. Their work speaks for itself.

I took my C5 Corvette to MTI Had some heads,Cam ,header's tuned with a A&A pro charger Very professional, the Car runs Awesome.Reese Cox is the man and all his associates.

MTI has done many upgrades to my 2006 Base Corvette. Suspension upgrades, several engine upgrades, and regular maintenance. The latest two upgrades, ported and polished cylinder heads with larger and stronger valves, FAST Intake Manifold with LS3 fuel rails, added 55 horsepower. Every upgrade has been a significant improvement. They are busy, so it may take a week or two, or three, to get to you, but they always do great work. Sometimes they get backed up, so you have to be patient. But your patience will pay off. Their new location up in Dawsonville is fantastic, with their own engine building shop, and a terrific CNC machining facility. Their engine dyno in Dawsonville is amazing, and Reese, and his guys, really know how to get the most, safely, out of your car and any upgrades you may do.

Highly recommend ! But you have to be patient. They seem to always have 6 to 12 cars their working on.

I had a lot of work to my C6Z done at MTI. I always appreciated MTI's extra insight and attention to detail for road racing applications (track day guy). Additionally, all of the in-house developed and manufactured products from MTI were top notch quality. It's rare to find companies that invest heavily in R&D but MTI does. If you want to go fast but also be able to turn and stop MTI is your place!

Excellent work and service by Reese and his team at MTI. Reese has been working on my C5 for almost 15 years doing Performance Upgrades, Maintenance and Repair. Most recent work included long tube headers, high flow cats, MSD Atomic air force intake with ported throttle body and dyno tune and a number of other improvements and maintenance items. This car now screams! And I can't describe how great the handling is with the Big Red Sway bars he installed last year.
When I bought this C5 new, I intended to keep it forever. It runs better than the day it was new. Reese and team is the only shop I let touch my C5. My next daily driver will also have a LS engine in it because of MTI, and it will go to Reese also. Thanks MTI!

Best shop in metro Atlanta for racing upgrades to your Corvette! I had MTI complete stage one upgrade on my C-5 Corvette and it was well worth it. Will be having them complete additional work! Their shop is one of a kind, the fabricating and custom parts designed at MTI Really something to see. Ask for a tour!

Shout out here for MTI's customer service. I called over 2 years after buying one of their seat rail kits with a question about mounting it. Nick was immediately helpful, and sent me some replacement parts free of charge. And this is after two years! Very grateful for the easy, friendly, customer service experience. Thanks guys!

I've had my ZL1 1LE back to MTI a number of times, as its transformer has evolved. Reese has quite the background in Motorsports and he really is a qualified race engineer. Knows most every detail to build this generation of cars to the utmost. All the guys are very attentive and the passion for delivering top performing cars is very clear.

My 2013 Corvette ZR1 was tuned by a couple other speed shops, the first shop did something to the tune that made the car buck hard, the second shop in Houston tried to tune it twice and never fixed the problem (first shop never called me back). Someone at the Barber Motorsports track recommended Reese Cox from MTI Racing in Atlanta so I googled Reese’s name and his race history was very impressive which included crew chief for a couple of race teams. He didn’t want to take my car at first because others had “stumbled” through the tune. I totally understand how a shop can get “married” to a project after the vehicle has had poor workmanship from other shops. After Reese and I talked he agreed to take the vehicle, which I’m glad he did. Reese recommended I replace the computer before bringing it to him in case the previous tunes corrupted the data. MTI Racing stays very busy (which says something for their work), and when he did evaluate my car, he recommended a few things before starting the tune, which I agreed. Like plugs, wires, etc… It took a few days on the dyno but he systematically worked out the problem, and got about 85 more horsepower from the tune than the others. No more tune problems and the car runs strong. Since then, I had Reese Cox install a methanol kit to help with cooling. The work they do is very professional and had no problems with any of their installs. For tune and race applications, Reese Cox is the real deal. Very knowledgeable (should be, his job as crew chief is to make cars go fast and last). When you call MTI Racing, Nick will answer the phone. If you want more informative answers, you must talk to Reese Cox. He’s busy, but he is worth the wait.

Ordered parts for my husbands c5 corvette for a Christmas present. They were really helpful on Facebook with pointing me in the right direction as to what I should get. (I don't know much about cars) We recently got them installed and he is very happy. Thank you so much!

You have to wait in line, but good things come to those who wait! I had Reese tune my 2014 Corvette after some engine upgrades. It is ALL about the tune. The car runs great. If you are wanting more out of your C7 go see them!