603 Performance and Maintenance LLC

603 Performance and Maintenance LLC is a Subaru specialist shop located in Londonderry, New Hampshire, established in 2012. They are known for their quick and cost-effective maintenance and upgrades on Subaru vehicles, as well as providing general service and performance work on any make and model. Customers have praised the shop's exceptional customer service, with one reviewer stating that the staff always has an answer to any questions or concerns. The shop has received positive feedback for their work, including installing a long block, handling a loose ball joint, and providing a smooth and responsive tune-up.

The owner, Pat, and his crew have done a great job keeping customers' vehicles, such as a Forester and Mazdaspeed 3, in great shape. Customers have found the staff to be knowledgeable and a pleasure to work with, always recommending the best solutions for their cars. The shop has also been praised for their ability to source a replacement transmission for a reasonable price and quickly. Overall, 603 Performance and Maintenance LLC is considered a top-notch business in the industry, with a loyal customer base and a reputation for expertise and quality workmanship.