Returned to BPG for installation of an upgraded air intake, Dinan exhaust, and springs on my 2012 BMW 535i xDrive. As usual, the work was meticulously done on time and on budget as promised. Moreover, I am always impressed by how thoughtful Andy and crew are about the work that they do, always reviewing and providing recommendations on how to keep the car running well (which would paradoxically keep me away from the shop!). I always learn something from BPG. Having had work done at other BMW specialist shops in MA, I can truly say the customer service at BPG far exceeds that of anywhere else and they will keep my business - even though other options are much closer to my home.