Peak Performance & Diagnostics

4 Windham Depot Rd, Unit B1
Derry, NH 03038 US
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Peak Performance & Diagnostics is a specialty European repair & performance facility located in Derry, NH. While we focus mainly on BMW, MINI & Rolls Royce, our team is dedicated to providing the same level of unbeatable quality and service on VW and Audi as well.

Our team at Peak Performance & Diagnostics is committed to combining the ultimate level of service and satisfaction as well as maintaining or modifying your vehicle with the highest quality products available backed by years of knowledge. Our work is backed by continuous dealer level training, advanced diagnostic software and procedures, specialized technique, and superior customer service.


  • Free Wifi
  • Courtesy Vehicles
  • Refreshments
  • After Hours Drop-Off
  • Kids Play Area
  • Magazines
  • Customer Lounge
  • Transit Accessible
  • Walkable Area
  • Courtesy Car Wash
  • Contact-Free Service
  • Pick Up & Delivery
  • Vehicle Sanitizing
  • By Appointment Only
  • Hand Sanitizer


  • Highly recommend, only shop I trust to work on my cars. Super honest (which is most important to me) and extremely knowledgeable.

    Luca G., via Google
  • Hands down the best experience I’ve had with a shop since owning my M3. These guys are incredibly accommodating, professional and knowledgeable. Prices are great and the result is amazing. Will be back ASAP for more. Thank you!

    Chris K., via Google
  • Can't say enough about these guys. If you love your car like I do this is the place to go. They treat your car like if its their own and meticulously take great care of it. They recommend exactly what you need to keep your car running. Thought my BMW 535 xi had no more life after going to a different BMW specialist, but these guys made my day by making this car back to road conditions. Can't thank you enough! You guys certainly know what your doing!

    Julian G., via Google
  • These guys really know there stuff. I high recommend them for anyone who has a BMW with an N54 or any other euro car. They are knowledgeable and have amazing customer service and will treat your vehicle as if it was one of their own cars. I recommend this place 10/10. I won’t be taking my car anywhere else but Peak Performance.

    Kevin K., via Google

Recent Google Reviews

  • E92 Garrett2 years ago

    Josh, Sam and Cole are by far the coolest people I have ever met. They’re always willing to go above, and beyond! I love when they always add a little spice up on my car! The build I have currently is on a big single turbo conversion precision 6266 by Speedtech kit and builder was done by Josh. I live 1hr and half away from their shop and you know what I don’t care because they’re by far the best shop out there for our cars!! These are the guys to go for your aftermarket performance, and maintenance!!

  • Tabor Nye8 months ago

    Josh is a BMW genius! He answered all my questions patiently and worked to find a solution for what I was looking for. If you want piece of mind knowing your BMW is in good hands with knowledgeable staff, look no further!

  • Nick Knowlton1 year ago

    Josh and the team over at Peak performance & Diagnostics does a phenomenal job with all my automotive repairs for my Porsche Cayenne GTS. The only shop I work with since I can trust them and they provide exceptional top notch quality service. They absolutely care about your vehicle as if it’s their own, and take such great care of it. Highly recommended! Check them out.

  • jbrandon30210 months ago

    Honest and talented team of guys that you can trust with your car. Right off the bat you could tell they were polite and professional, and the shop was very organized and clean as well. I would recommend them to anyone else with a BMW.

  • Tommy lee Woodward1 year ago

    This shop was very quick to exceed my expectations. Josh (owner) was awesome to work with and very knowledgeable. The zero percent financing option was a big help and allowed me to do a little more I wanted to do. Thanks again!

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