If you need your car professionally dyno tuned then this is were you need to bring it, i took my mustang steeda here and the performance is 200% better, Larry is honest and trust worthy i will stsy in contact. It is well worth the price. He put 6 custom tunes on my sct x4 tuner. He specializes in mustangs but he does others

Larry got my car back up and running to perfection...After a bad experience with another shop in Lithia Springs, I was referred to LD performance and he exceeded all of my expectations at a great cost. He is professional, explains everything, communicates promptly and took the time to make sure my Mustang was back up and running like it should be.If you want your car done right, this is your guy!

Did some work on my 2011 Mustang GT and was more than fair with the pricing and the car ran better than ever. Actually surprised me with a new Barton shifter that I didnt even ask for but was much appreciated. Great guy and great power numbers!

Requested a quote never heard from anyone

Larry is a top mechanic and Mustang Performance specialist. His knowledge and skill with Mustangs is second to no one. His prices are fair and he is an honest guy. I will be going there for any of my performance needs.

If you want quality work then LD’s Performance is definitely the right shop. I have had work done ranging from general maintenance all the way to rebuilding blown engines. Larry has been working on my vehicles for 16 years and I refuse to take my vehicles anywhere else. Thank you for all of your hard work and dedication!

Left a fast car and got back a faster car!! Its hard to complain about 1000 hp. The power this car makes is epic!! Definitely check out LDs Performance .Larry Day the owner is awesome!!!!!

LDs Performance has performed several upgrade modifications on my GT convertible including tunings, perfomance exhaust system, lowering spring set, sway bars, gear sets, and clutch sets. The owner does excellent work at a fair price. I highly recommend him!

Highest quality workmanship. High Preformance tuning-accessories-and builds. Will not use anyone else.

Larry Day, I.Q. 150