Take a look inside at what makes Dinan Engineering one of the most well respected BMW tuners in the industry. President Steve Dinan shows you the "Dinan Difference" by gving you a tour of Dinan's Morgan Hill based, 33,000 square foot facility where every bit of R&D, race development and manufacturing happens.

Dinan has over 158 dealers nationwide, including BMW dealerships, and is the only aftermarket tuner that offers a factory matching 4yr/50,000 mile warranty.