Winchester Auto Service

If you have a BMW this is the place for you.

these guys are great

I had Dinan Stage 2 software installed on my new 2014 BMW X1 35i w/ Sport Package last week. Bone stock the car was very quick and nimble. All I can say is the Dinan up grade puts the car in a whole new category. The additional torque and horsepower make throttle response noticeable even in the lowed RPM range. If you really get on it, the acceleration can best be described as heart-poundingly fierce. David and Andy were great to work with. Courteous, knowledgeable and professional. Anyone considering a Dinan performance upgrade would be well advised to visit Bavarian Performance Group in Winchester MA.

5 Star Rating

I had Bavarian do a pre-purchase inspection on an old BMW that the owner claimed was flawless. Not only was it not flawless, but it would have cost me thousands to get it road worthy. Well worth the money.

Wicked great shop!! 10/10

Excellent service! Friendly staff

See you in 6,000 miles

Reliable honest value and good customer service

I believe that BPG cares as much about my vehicle than I do; maybe more! I feel my vehicle is treated as if it was the most important car in the garage. Dave and Andy make a great team. Dave provides concierge level customer support while Andy delivers meticulous repair service with savant like attention to detail. Was in for Dinan Stage 2 software update and basic service on 535xi. Same day service on two different dates; in and out in under an hour. btw The car is ferocious! Thank You Gentlemen!