JTM Motorsports

John and the team at JTM are the best. I took my car there first for basic maintenance and got the grand tour of the facility and it’s very high tech. They have all new lifts and equipment and do dyno tuning onsite. He spent a lot of time trying to find a problem with my car and kept me well informed every step of the way and even provided advice about next steps. His shop rates are the most reasonable around. If you’re looking to get your sports car worked on I would definitely recommend JTM.

Great shop, fantastic work! John installed an A&A supercharger, cam, American racing headers, and tuned my 07 Corvette. The car runs great! John would always answer the phone when I called, always happy to answer any questions that I had. Thanks for the great work!

First Class Operation! It is the right place to bring your Vette or muscle car. John takes the time to explain all and does it right. Staff is highly trained. These guys get it done. I highly recommend.

John and Jtm are a great group of guys.
They do great work. I have referred many people to jtm and they all had a great experience.

John worked on my 2007 Z06 and my expectations were greatly exceeded. Customer service is second to none. Living in the tri-state region we are lucky to have JTM within reach

Went to JTM to get a built transmission installed, Transmission cooler and dyno tune in my Camaro, John was very knowledgeable and had the car done quickly with high quality work. Most importantly he was very upfront with pricing and how the car was performing after work was complete going over the dyno and any concerns he had. Car drives better than it ever has! Would 1000% bring my car back there. Great job!!!!

If you are looking for any LS or LT or for that matter any parts Chaz is the best guy to deal with hands down!.. im in canada and its usually horrible to get anything shipped here or even priced here at a reasonable price and Chaz shipped me my stainless works headers and rotofab intank (and some more stuff soon) and saved almost $600Us just on parts and his shipping quotes were amamzing for shipping to canada and my stuff arrived in a week even with christmas.. will definaly use him for any aftermarket parts regardless or make of vehicle he can get them.. thanks again!

John at JTM is an absolute stand-up man. Couldn't be happier with his service and above all, his attitude. Having a corvette always comes with the corvette tax...not here. His prices are in line with most other performance shops I've dealt with in the past, both for vettes and stangs. The difference is the time he spent on a mechanical issue I am having with my abs system. An issue they weren't able to solve through no fault of theirs. I should've been charged for the time and fully expected to be and was prepared to pay. The fact that he didn't charge me was above and beyond. He has made a life time customer out of me.

Highly recommend. JTM did a cam swap and a dyno tune on my El Camino with a 5.3 LS and I couldn't be happier with the results. Jon rules and gives exceptional customer service. When I changed my rear gear ratio he walked me through updating my computer so I didn't have to drive two hours back to his shop. First class operation.

TLDR: These guys are amazing, they are upfront and did an excellent job on my Fbody when no one else could.
Long: I purchased a 2002 Camaro SS SLP, after a while the car had the following mods, G5x3 cam, clutch, exhaust, suspension, intake etc. I had taken it to a few other LS tuner shops in the NY area and no one could really tune the car. I really could not drive the car, the oil smelled like gas, it would fall on its face when you go on it, and I didn’t know what to do or where to go. Someone recommended JTM and I said well screw it, I might as well try. Today I picked up my car, what an amazing difference. The car is running, no sputtering, and no issues at all. I was given a printout of the dyno numbers from a Mustang dyno, the guys in the shop were friendly and did not bust your chops. I have been to other shops and if you don’t have a supercharger, turbos, or an aftermarket ECU they don’t want to deal with you. The other shops told me "Without an aftermarket ecu this car will never work with this cam" Not these guys, they took my car, made me feel comfortable and were transparent though the hole process. I wish I can give these guys more than 5 stars. They have earned my business for life.
Thanks
A very happy 4th gen Camaro owner.

John at JTM is the best thanks she's running good

Fixed the misfire on my C7 and an exhaust issue. Thank you!

Hands down the best performance and fabrication shop in the Tristate/Longisland area. Driving onto the lot alone you seen nothing but amazing builds in progress or completed. These are the guys you bring your vehicle to when your looking to make your street car or race car the fastest possible. Happy to have found John/Matt to turn my Trailblazer SS into one of the baddest street trucks around.

Know what there doing, John is very knowledgeable and I recommend JTM. My 2002 Corvette runs perfectly " thanks to John and the crew !

John and entire staff at JTM did an amazing Job! These guys are the real deal!

Went in to get some work fixed that another speed shop messed up on me, really great group of guys. Handled the issues and my vette is running great again. Will definitely be coming to these guys for all my future work coming

Hands down the best LS shop on LI. Friendly staff, very knowledgeable, and fair pricing. I would recommend JTM to everyone. Thanks again!!

very very happy with John and Matt very courteous knowledgeable and professional will definitely be back for more mod work on my SS1LE

Very nice person John the owner. Very professional shop and services. Definitely the place to go for performance needs on your ride

Extremely capable high end shop, Ridiculous pricing for ridiculous horsepower. Get on the waiting list, don't ask stupid questions.