Injected Engineering is the real deal when it comes to performance tuning. Aric did a dyno tune on my supercharged small block Ford-powered Miata over 18 years ago, and I have had zero issues with it. His attention to detail is unmatched. read more

Injected Engineering - Auto Parts & Supplies Near Me - Kennesaw, Georgia

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I drove my car to Injected Engineering to have a small oil leak addressed. The same day I was informed that they were having issues getting my car to run properly. I did give them my car on a base tune, but a base tune that I have driven on for months without issue. The oil leak was addressed but they were unable to test if it was fixed because they stated my car would not run long enough to test it. Aric called me and told me this and then offered to do a pre-dyno inspection which I agreed to and was told specifically every spark plug would be checked. At this point it is suspected that the spark plugs are fouled in the car (I am not blaming Injected for the fouled plugs). Fast forward a week I go to pick my car up and I am told everything checked out on the car, I pay, I grab my keys and go outside to start my car and my car will absolutely not run at all. My car stayed the weekend at the shop and was looked at early the next week after speaking with Aric I agreed to let them dyno tune my car and Aric agreed to pull a spark plug to see if it is fouled (This should of been done already during the inspection). This is where my questions/problems begin. Josh calls me and tells me a spark plug was pulled and they are fouled and it would be $400 to swap the spark plugs and that if they broke it would be more. Why would the spark plugs break if they were supposedly already all pulled and checked? Why wasn't the obvious fouling of the plugs noticed during this inspection? Mind you I have a checklist of everything that was supposedly checked and spark plugs are on there. There was also coolant spilled on one side of my engine bay and residue was left everywhere along with residue on my front bumper that they did not bother to clean. In the end my car was towed home since it no longer ran. In the end between the $400 I spent with Injected, a new set of plugs, and the tow truck bill I spent close to $600 total and I suspect my car is still leaking oil. An email to Aric/Josh looking to come up with a resolution was unreturned. I refuse to ever do business with this shop again. read more

I used this company to put the finishing touches and tune my built 94 Mustang Cobra. They did an outstanding job! If your looking for the best this is the place. Thanks, Matt read more

I had a horrible experience with this shop. They will overcharge you and cause more problems to get more money out of you. The owner is also extreamly rude I would stay away. read more

My supercharged Dodge Ram went in with multiple issues, came out a beast with a perfect tune and not a single issue since. These guys are great and know thier stuff. You know when you walk into a shop area thats as clean as your house, your in the right spot. read more

I cannot say enough bad things about this business. I spent close to 30,000 with them to build my 2010 challenger and what I got back 9 months later was slower than what I put in the shop. The car leaks oil and will not up shift at the track. The blower belt is still slipping after they insisted I buy a new blower from them to prevent this. I could go on and on but suffice it to say You should pick another shop these guys will not give you what you pay for. read more

I had the worst job ever from these guys on my 87 Mustang. It was in their shop for 10 months and left today on a wrecker. They scratched my paint in several places and found many creative ways to run up the bill without ever actually completing the job. The more You complain the slower they go. I would not even recommend them for an oil change. read more

Staff is friendly but not very forthcoming with information when detailed questions are asked. Offered a tune from some custom device that the owner had come up with claiming that Ford would never know it was tuned if it was ever flashed back to stock by this device. Device suddenly is no longer available now and staff was rather prickly when asked why, providing no information besides that it is no longer around. Phone calls not always returned, they pass their credit card processing fees on to clients and have high extraneous shop charges all over quotes. Workers back in the shop seem to be good guys, not so much with management. Finally, came by with a friend from out of town for the weekend for a meet up at Injected for a roll out to a charity dragstrip event. Meet was scheduled on the flyer for 7am. From 6:40am to 7:15am, nobody arrived at the shop. There were two others cars there waiting too but nobody from the shop. My friend and the other two folks were rather annoyed as they were excited to go see the show. Turns out they changed the meet up time at the last minute without posting anything at their shop outside to notify folks. A complete waste of time before an already long drive to Commerce, GA. That will be my last trip over to Injected. read more