Transmission repair service near Hamilton, OH

All Speed Innovations aka Sigma Six Engineering is ran by a wanna be engineer named Pat Smith. Pat uses customer cars as his personal cars while in for service. They charged me for a alignment and the alignment wasn't done. They also took it to a alignment shop without my permission. When they installed plastic TGV deletes they connected a ground wire to them. Pat couldn't figure out how to connect his laptop to my car and disable the TGVs, I did this myself after reading how to do it on the Internet. They also built a cage for a customer and ruined the customers car. Everyone should stay away from this shop or anything related to what Pat Smith does.

Family Owned and Operated

Sam's a great guy, I simply drove to his shop unannounced and he made time to check out my issues. I eventually got some electrical help with it and that led to some suspension work I needed a couple months later and a timing belt when I hit 100k in my VW. I always go to sam, he preinspected a Jaguar I was thinking about even. Sam's shop is different, I thought I would be getting Bentley prices for my little v-dubber, but that's not the case. Very reasonable for what he does.

My 2010 VW with over 100K drives like it was brand new. They analyzed the problem and fixed it with VW parts. Makes a big difference. If you have a German vehicle and don't want to take it to the dealer. This is a great full service option.

My experience was AMAZING with Evan's. They are professional and so prompt. They got me right in and gave me continuous updates. Also, they seem very affordable, I have been ripped off by my dealership before and I trust these guys. Evan himself even shuttled me back to work, which was so nice not having to ask someone or worry. I am from out of town and now have a go-to car shop! I would highly recommend them :)

I must say that I've never dealt with a repair shop that has been totally helpful and honest, until now. Jeff is a real stand up guy. If you need great car service this is the place.

I’ve gone to Auto4n many times, for oil changes, repairs, brakes, and other services. There’s no one else in Cincinnati that I would trust with my Mini. They are honest, transparent, and friendly. Plus they give out great freebies to their customers! Shirts, beer glasses, even sunflower seeds!

Unfortunately zero stars is not an option. I would strongly discourage anyone from using this shop. The owner overcharged me, and lied repeatedly after causing damage to my vehicles safety system with his poor work. The only good part of the experience was knowing that I will never go back there, and I hope that this review will dissuade anyone else from giving money to this weasel.

I have taken my car there a few times. They have always been honest and straight forward with me. I have a decent knowledge of cars so I have a clue when people are not honest. I even sent my niece up there when she had car trouble. A 20 year old college girl with no automotive knowledge. They replaced her spark plugs and did not try any "add on" charges or phantom parts. They could have easily gotten away with it. Not many shops are that honest.

Was quoted over $1,100 to replace an alternator on my 2004 Land Rover Discovery. Was told the price for the alternator was $600+. When I questioned John the mechanic about the price and told him a new one on Atlantic British was $290, he told me their shop won't compete with on-line discount part supplier. On top of that, 5 hours for labor at $500. If anyone knows Disco's, replacing the alternator is the most accessible part on the engine. So disappointed in the quote, I paid $125 for the diagnosis and towed my car to another mechanic. These guys are despicable. Avoid at all cost.