Mission Performance & Auto Works TN 1100 5th Street, Bristol, TN 37620

"The owner of this shop is a great guy. He was super helpful, knowledgeable, honest, and efficient. It seems like he really cares about his customers. In addition, he kept me from making a 15k dollar mistake. I will definitely be going back and I urge anyone who needs a pre-purchase inspection or work done on their current vehicle to go to him. Couldn't ask for a better mechanic."

"I was pretty much at laith’s shop all day Friday waiting for a simple catback exhaust put on my 2017 gmc Denali 1500, he’s very knowledgeable in the automotive business and all in all a genuine, good, mechanic. We shared and talked about stuff while I was and I couldn’t have felt more at ease to be pleased about taking my truck to him! It’s just him so just stick and conversant he’s knowledgeable in and out of automotive life!"

"So let me just say I have a 2011 2ss Camaro that has had a cylinder 1 misfire for almost a year after thousands to try to fix it and shop after shop even the dealership who said it was “fixed” and wasn’t not even 10 min down the road just to turn back around and drop it back off! This had to of been my best experience this past year I highly recommend 100/10 not only did this guy help within budget he educated me on my issues and fixes but he fixed it right even the problems the other shops caused and made worse not in weeks or months he fixed it in 2 days! His customer service is exceptional as well as his automotive skills this guy don’t pitter patter around or try to scam you into a job you don’t need done he gets in there and gets it done without the long waits if your looking for repairs or performance that will be done properly and then given the knowledge on every detail that was done and why… this is your guy he don’t just tell you he fixed it he explains the problems and explains the fixes and don’t charge for unnecessary repairs!! Highly would recommend!!! Don’t waist your time and money on any other shop around!!! I will be back for any other issues I have from here on out."

"Laith is the real deal. Helped me while I live states away with a diagnosis. Because of him we were able to pinpoint an issue that now can be resolved.This gentleman really knows his stuff and doesn't beat around the bush."

"I brought my car in for work recently. It's kind of a mess; it's an MR2 I bought in bad condition and swapped a Celica 2zz engine into myself, which the MR2 never came with from the factory. I had an aftermarket exhaust and intake, as well as a JDM ECU with a different tune versus the USDM one. Most places I called wouldn't work on it due to the engine, parts and chassis all being from different cars. You can't just do what the dealership manual says to do, you have to actually know how the things work to make them work together, and most places didn't want the headache. It needed lots of little things gone over to run right, and I thought it might need a head gasket. It also sat for a year while I saved up for the HG job. Laith went over the car, sorted out all of the issues and got it running right, with fresh fluids. It turns out it didn't need a head gasket and he didn't try to convince me that it did. I also had an ECUMaster EMU Black aftermarket ECU, which was pinned for a Lotus 2zz, not a Celica 2zz. I didn't realize the pinouts were different until he asked me about it and I looked them up. He re-pinned it to match, and programmed a custom tune anyway. He stayed in contact the whole time and even pivoted on a couple of tuning requests that I came up with partway through. He's very knowledgeable and thorough, and is able to problem solve issues that most shops would balk at. Thats three years of struggling and frustration solved in a couple weeks. I'll be coming back for any future work."