Marty and Jeff are very responsive and they truly care about their customers and their vehicles. I only take my 69 Corvette to Mos because they know the vehicle and I completely trust them to treat me fairly. I just wish they werent so busy but good service at a fair price is a popular and hard to find quality in their space. I feel like Im part of the Mos Speed Shop family.

Marty, Jeff, and Val are great people they and they run a great business. They are very informative and very quick to respond to any questions a person may have. They did a great job tuning my truck. I will definitely be in touch with them in the future with my tuning needs. If you need someone you can trust with your car or truck give them a call or email.

The garage did a header install on my vehicle at a reasonable price and with excellent results, still no issues 4 years later.Marty has provided me awesome tunes and revisions over the years as I have changed my vehicles. Amazing shop and owner to work with.I actually drove my Panther platform car down from Canada to the shop, as nobody else can equal the experience these guys have with those cars.Thanks!

Marty is the man! Every single part of working with him and his team has been amazing. Very responsive, professional, informative, and my car has been transformed for the better. I highly recommend working with him.

Jeff and the fellas at Moes are experienced subject matter experts in building, repairing and testing your four wheeled dreams, your weekend projects and your daily drivers.Having the solid reputation for performing high quality work with proven results you must be sure to contact them well in advance to get on their very busy schedule. Odds are real good that you wont be disappointed.

Needed a tune done on my wifes 99 Cobra mustang after I did some work. I was lead to these guys for tuning. I had a tune file in my possession within an hour and a half of the phone call discussing what I had done to the car. Car runs great, and has amazing street manners which is what Im after.

Marty is well known in the panther community for his custom tunes and I knew based off of his public reputation that I would not be let down!Both Marty and Val were amazing. Very responsive, direct, and professional. More importantly this is an EASY (but a little intimidating I must admit) process that they WILL hold your hand through if need be.If you need a tune for any car, but especially for a Lincoln Town Car, Ford Crown Victoria, Mercury Grand Marquis, or Mercury Marauder you WILL NOT be disappointed.Get yourself a tune. Do it now.

I had a remote tune done on my 2004 Mustang GT with a Vortech Supercharger. Marty and Jeff were fantastic. The whole process took about 2 hours and my car runs fantastic!

Marty and Jeff are very friendly, trustworthy and easy to work with. Their attention to detail and quality of work is top notch! Dont hesitate to bring your ride to them !

I LOVE MY TUNER... RUNNING A 93 TUNE AND I LOVE THE WAY IT MAKE MY CROWN VIC RUN

Where do even begin Mos speed shop, hands down the literally the best customer service i have delt with in the performance industry, Marty and Jeff have been hands on for hours getting my car 100% they are not satisfied until the vehicle is operating at its full potential these guys know their stuff they unleashed the Beast in my car!!!!! i recommend 5 out of 5!!!

Great place to do business with! They patiently listened to the concerns that I had before they started to do work on it. Waiting to see the finished product.

We drove 6+ hours from NC to have Moe’s rebuild the rear end and install new gears & a Trak Lok in my 06 CVPI.We showed up at 9AM, the car went on the lift immediately. Val and the entire team at Moe’s were very accommodating, Val drove us up to a shopping center where we could get breakfast, and my wife and I, (mostly my wife) could shop rather than sitting around the shop. We got a chance to chat with Val during drive, she’s a super person very down to earth.Jeff had the rear end rebuilt, gears and Trak Lok installed, new tunes loaded & test drive done in just about 3 ½ hours.Val called, told us the car was ready and came to picked us up. I paid them and we were on are way back to NC by 1ish PM.I am very happy with their exceptional workmanship on the job that they did. The car loves the gears and the tune.Great group of people to deal with. Very communicative, great prices well worth everything for the piece of mind knowing the job was done right the first time. Only small bummer was that I couldn’t meet and chat with Marty as he was busy.I Highly recommend Moe’s for any work you need on your CVPI or any vehicle. I will be back for further modifications to the Vic in the future.

I own a 99 Grand Marquis, and I had been having car issues for a little over a month before I contacted Marty. Beforehand, I had taken my car to several different shops in the area including the ford dealership itself and I received zero results. The ford dealership actually just slapped a part on the car that I didn’t even need and charged me for it. The check engine light came on right after I left their parking lot, and after a long argument with them I took it to another local shop, who basically held onto my car for weeks just running trial and error putting on parts to see what was wrong, and eventually gave it back to me, and not only was it not fixed, but the car would completely stall out on me now. I was frustrated and at the end of my rope when I remembered that the shop mentioned something about resetting my PCM or something, which sounded sketchy but they pointed me in the direction that I needed to go. Soon as they mentioned that, I contacted Marty and let him know of the issues I had been having, on new years eve of all days, and he emailed me back immediately with confidence and a solution. I had purchased a tune from the shop a little over a year ago and I have nothing but positive things to say about it, if you are ever on the fence with getting one, just do it, with that being said I experienced a confidence level that I hadn’t with any of the other places I had been to at this point dealing with this issue. Not only did they help me over the course of new years eve AND new years, but they also managed to squeeze me in as soon as they could. Long story short, Marty and his team fixed an issue that I had been struggling with for over a month in probably a half-hour by remotely tuning the issue without even having to be physically present. This shops customer service is second to none and if I could give them more stars I would. Their customer service is on another level and the staff is really down to earth. Next time Im having any issues related to this car, or need an honest opinion I know exactly where to go. Whether its for performance or anything else, you cannot go wrong with this shop. Marty and his crew have a reputation in the panther platform community and each day they hold up to it. I cannot express it enough, thank you guys!Eddie

Shouldve wrote this review months ago. Martys awesome at setting up tunes for Crown Vics/Panthers. If youre even considering a tune, dont hesitate! Ive been running the 93 tune for about 5 months and love it!

You will NOT be disappointed.

Marty went above and beyond to make sure I was satisfied with everything, Valerie was also very helpful. Thankful they are in the business!

Great work. Love my ride.

My ‘04 Marauder has been there twice (from out of state). Eaton swap, 4.10 gears, headers, ss brake lines, trans cooler and larger pan, and of course a dyno tune. Also lowered my car ~1.5 in, added some gauges, and powder coated my cam covers.Flawless, beautiful workmanship. Professional, courteous staff... OUTSTANDING communication. Fair prices. Can’t recommend Mo’s enough!!!

Very pleased with the tune I received from Marty, as pleased with all the technical info over the phone, thank you Mos speed shop

My first experience at Mo’s, but it won’t be my last. Jaime, one of the techs there, installed an after market exhaust on my 2019 Mustang GT. He took his time, did the job right, and was as particular about my car as I am. Thanks again Jaime! I will be back with my suspension parts! I was greeted at the door at my precise appt time and when job completed price was less than quoted. You can’t go wrong at Mo’s!

I would highly recommend them for any performance work on your domestic car or truck, regardless of brand.

Marty and Jeff did a great job tuning my Lincoln Towncar. Car never shifted right after putting a shift kit in it. But now it is a different animal. Clean profesional shop and Marty responded to my e mails even when the shop was closed. Would highly recomend.

Just got a Marty Tune for my 03 Grand Marquis and I couldnt be happier. Car feels great now. Thanks! Highly recommended!

Awesome great service and such a cool shop. Im still happy about the entire experience. I would love to do business with Mos Speed Shop again

Received a remote tune from Marty for my mustang, couldn’t have asked for better customer service he made sure the tune was spot on, car running and shifting how it should now👍🏻

Marty was very quick in all of his responses, and even replied to emails on holidays. I am very pleased with the tune he created for my car, my Crown Victoria feels new again. I used to run lean with a cold air intake but now it’s running great. He even included a premium tune as well as one for regular gas! Thanks so much, if I have any other needs for my vehicle I’ll be sure to contact Mo’s speed shop first.

Great guys, lots of experience! When you want to get most out of your car, go here!

I would recommend these guy’s to any and everyone that needs anything done to their car. I have known them for many years now and I trust them 110% with anything I own. They will be 100% honest with you on what your car needs and what it doesn’t need. I took one of my cars last year (1993 coupe with 32 valve cobra motor ) and dropped it off and told them to do whatever they’d do to their car do it to mine, and my wife and I couldn’t be happier!!!!! You will be happy when you leave....Guaranteed!!!!!GREAT BUNCH OF GUY’S ( and Val )

Brought my 07 V6 mustang in to have it tuned after my original stopped working. Jeff was able to get it done in a little over an hour and get me an additional 15 hp. My mustang feels great to drive again and I could not be happier with the service!

It was my first time going to Mo’s Speed Shop, these guys are the real deal! Jeff and Marty helped me out big time with my 96 cobra and I will be going back with any other repairs or tuning I need!

Nothing short of spectacular! I HIGHLY recommend you visiting, especially if you have a Crown Victoria, Town Car, and Grand Marquis and want to wake it up. I didnt get a chance to meet Marty himself,but Jeff was equally knowledgeable and I was blown away. Great group of guys over there and I will be back!

Excellent customer service, ordered a custom tune with programmer .I m all the way in michigan and it arrived quickly and did its job better than expected. Marty went the extra mile to make sure i was satisfied. Very happy with the service i was provided

They know what they are doing and have the right equipment

BEST TUNES EVER

Cannot say enough about how amazing this shop is as the people that work there. Marty and Jeff are the best! Absoutely amazing. The remote tuned my 09 p71 that has been marauder swapped and it is absolute perfection!

Very fast replies even on Sunday.

Jeff is a Master at tunning thats for sure! Highly recommended 👍👍

Great! Honest people. Ray, Val, Marty, and Jeff have all been excellent! This shop has proven to be the best. Since I have met these guys, my mustang will never go to anyone else. Nothing but quality work, and excellent customer service! Highly recommended! Thanks for turning my 4.6 into a supercharged beast! Cant wait for future modifications!

Impressive, no, excellent, nope, more like SPECTACULAR. I am the kind of person of do it by the book and I was skeptical at first because I had very bad experiences with shops but with Mos.. again SPECTACULAR is short. Jeff, Marty, and everyone here are awesome. I got my car dynoed and rearend (locker, gears bearing etc) done here. They have a customer for life! Thanks 😎

I just got the clutch replaced and the rear main seal replaced on my 2008 shelby. They did a fantastic job. I am very pleased with the quality of work they do. I highly recommend Mos . I will not take my car to any one else.

Seems to be a great place to get high end quality work done on your vehicle. The owner clearly knows what hes talking about and very friendly.

Very Knowledgeable and helpful. Quality as always. Thanks guys!

Marty has constantly delivered on providing the best possible tuning for Ford Crown Victoria’s. Who would think an automotive shop could set the gold standard for customer service? You will definitely find it here.

Theres nothing bad you can say about these guys. Top notch. Best of the best. No one better.

Mo’s is amazing! Total pros that always know exactly what our 66’ Mustang needs. Highly recommend!

Excellent customer service from Marty I wish I could give this shop more stars. Anytime I have a question about my vehicle even on the weekends I get a quick reply! He sent me my tune on my 07 LTC with small bolt ons it’s a huge difference from stock. Got it within 2 days. The reviews about him are legit and If you have a panther body especially I would recommend this shop for any concerns and tunes.

I really like the way you treated. Even when they say they will call you back, they do.

Awesome shop, great people quality work and craftsmanship

Many awesome cars..very knowledgeable about what they do

Great communication,Super services,My best regards from Saudi Arabia.

I worked remotely with Mo while tuning my 2004 Mercury Marauder and it was an awesome experience!! Hes extremely knowledgeable about Marauders and pretty much anything on 4 wheels. Highly recommend his services and especially his tune for the Marauders, because it makes one hell of a difference in the way the car drives afterwards!!

After asking around who I should take my car to I came across Jeff. He was recommended by many and I could not be happier with their advice. The quality of work and time turn around was amazing.If you are thinking about anybody you should use for performance work stop thinking. Take it to Jeff and his team. They will get it done. I am super pleased with my experience and will refer you guys to everyone.

Great place! Mos is perfect if you have any custom car problems or are looking to upgrade your ride. They scheduled me in real fast and honored a warranty issue I had with a part without a problem. Recommend them highly.

I took my 1994 mustang in for a supercharger and fuel system upgrade. They were very friendly, informative and did a great job. The car runs great and Im already planning a return visit for an exhaust upgrade and more BOOST!!

Today was my first visit to Mos Speed Shop. The hospitality was Awesome. The staff was Amazing! & very knowledgeable. Ill have great expectation of this place. I was impressed when I walked in the door. Ill post again when I get my truck back. Im excited about this

I brought my 04 Marauder in for a gear change, and to replace what I thought was a bad rear wheel bearing. We discovered that the rear axle housing was damaged beyond repair so the guys at Mos sourced a replacement and installed it along with a new carrier and axles, and a fresh tune which really woke the car up.Marty, Jeff, Val and the rest of the staff are a great group of people and I would gladly recommend their work to anyone, and I will be bringing several other of my classic and newer muscle cars in for some much-needed mods.

Great guys that do good work

Tune works great

I did a motor swap and a bunch of mods (high stall torque converter, Marauder intake, throttle body, etc) to one of my panthers, and was referred to Marty by one of the vendors I purchased some parts from. I was originally wary of getting a tune from a shop that was 600 miles away from me, in the event of any issues that may have arisen. However, Marty came highly recommended, so I contacted him to get the ball rolling.Purchased the X4 and the tune, and received it in the mail 2 days after I paid for it. The baseline tune that Marty had programmed onto the X4 was fantastic. The car would have run perfectly fine with his original tune. I was having some issues with 100k mile old intake parts that I had neglected to replace with the new motor (had nothing to do with the tune, was completely my fault!), but once I replaced them, Marty had me datalog with a step test, just to make sure everything was right. Perfectly dialed in. She purrs like a kitten.I highly recommend Marty. Lightning fast support, and an expert tuner. I have other panthers in the stable, so I will definitely be utilizing his services again.

I brought my car to get stiffening rails and a web brace installed. With this, I also brought a torque arm from Maximum Motorsports to be installed as well. I emphasized that I want it done correctly more than anything. We agreed on a price and I brought my car down and left it. I also left the installation instructions, manufacturers recommendations, and asked the technician if he had any questions. He assured me that it would be no problem. After multiple trips, leaving the car for over a week at the shop, and several discussions, the products were installed. Many of the welds were not completed. Most of the welds lacked fusion with minimal, if any, root penetration. In other words, I dont trust the bubblegum holding it together. I spoke with the owners about this several times and the feeling I have from those discussions is that I got what I got and I should be happy that they even did it.Im sure they do decent work. However, I would not let them work on my vehicles any more. I would not recommend a friend to them. I would not leave my car with them again. I simply did not get what I paid for.

Mos Speed Shop is one of the best shops anywhere. Their knowledge and customer service is phenomenal. I highly recommend this business based on personal experience.

Marty is best in business!

Got three tunes for my Crown Victoria. Woke the thing up! Incredible customer service from Marty, very quick responses 95% of the time. Would highly recommend

I have a 95 mustang GT cobbled together from god knows what. You pop the hood and it says cobra. After seeing the caliber of vehicles being serviced at Mo’s I was worried they wouldn’t even accept my”slowbra” for work because.... well..... it’s sort of janky. But they did. They installed new rear upper and lower control arms, clutch cable, lug nuts and adjusted a few things here and there, NO... my car isn’t perfect and it’s gonna be a while before its even close, but I can drive it, enjoy it and HAVE it. I’ve worked so hard to get where I’m at and Mo’s helped put my trophy in my hand. They provided more service than expected and I payed much less than anticipated. I can’t thank them enough. When I’m ready for some big steps for my car.... I want to do business with THEM. Thank guys

Nothing but good things from these guys! Marty your one of the nicest people Ive ever done business with and Jeff you my friend I want to say thank you for helping me sort out my tune and making this such a great experience. Marty thank you for all your help and spending your free time fixing my car I owe you guys for LIFE! One word for Mos Speedshop..SUPERIOR!

Jeff and Marty are the best! Honest and many years of experience make this the best place for serious tunes and repairs.

These guys are awesome! They revived my father in laws 1980 corvette back to life after sitting for 8 years! Great prices and communication from start to finish! If you want to be treated right and have your car treated right, then call these guys! Thanks Jeff and Val!!!!

They do great work and it is fun to see all the other great cars there and talk to other owners.

Quality service/work with exceptional customer service!

Top shelf ideas n quality work

As Always great.

Picking up parts and advice

Awseome place love the whole experiance

Mos did great work on my Camaro! Now I have them working on my 2nd car project😎

I recently had 3.73 gears installed in my 2012 mustang at mos. Marty, Val and Jeff run an exceptional shop. Very knowledgeable and friendly techs and the place looks like a museum full of amazing cars. My gears are dead silent and my car drives as good as the day I brought it in. I will be telling everyone about MOs. Trust these people. They will do it right and if anything goes wrong they will make it right.

Excellent work and service

Customer service is excellent very knowledgeable, and also friendly and reasonable prices.I look forward to doing business with them again.👌👌

Speed and repair shop domestic and high performance cars

THE ONLY PERFORMANCE SHOP WORTH TAKING YOUR CAR INTO

Great shop. Very knowledgeable about all makes and model vehicles.

Mo fixed my coilovers when the person I bought them from couldnt help

Mos speed shop is the best.Jeff always takes care of me... been using him for specialty tunes for over 15 years

Best speed shop in NW Ga.

Great people. Very knowledgeable. Too many Mustangs to count!

Went to the shop concerned about not having enough performance being to my vehicle and the guys here were honest enough to tell me that everything that needed to be done had been. Greatly appreciate the honesty & integrity for not up-selling me

Hes an awesome tuner and engine specialist.

Keep up the great workOutstanding customer service and knowledge

This is one of the shiftiest, most evasive tune shops Ive ever encountered. Ochs doesnt come open up about dyno results; he just tells you to trust him with your car and your money. He claims a lot of experience so he should have a database of dyno sheets to share but he doesnt want to. He just says to send him money and hell send a tune thats supposedly made specifically for my car, yet hes never seen it. He claims that he has so much experience that he doesnt need to dyno my car yet he wont share dyno sheets of similar vehicles.

Mos does great work!

Jeff was great to work with

Questions answered quickly, and correctly!

Ive got to hand it to MartyO - he sure knows his stuff. I had a tune problem in my Marauder, and he corrected it over email (Im in California). He sent me the new tune Wednesday. I had the car in a local shop to get the rear O2 sensors replaced, since they were inactive so long (and replaced on MartyOs recommendation). The tune went in the car before I drove it home Wednesday. By Thursday night (and two round trips to work) I checked the car and all emissions tests had completed.And, today, I passed California smog certification. So the Marauder has a new hope! I even got it washed to celebrate. All I have to do now is stand in line at the DMV to get new plates.So - every single thing people said about MartyO was spot on - he helped me get my issue corrected and I cant thank him enough. Trust him, folks. He does it right.

Great performance shop for all your automotive needs..

Excellent service, very patient, superb support.

Best place to bring your sportscar !

These guys do the fun work and its done right.

Best in the World.

Best Tune in the country

Attention to detail