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 giving 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.

Dinan air-to-water intercooler

The latest exciting model to emerge under the DINAN R&D is the Dinan Signature Series S3 BMW 550i, a vehicle that could compete against the M5. The S3 upgrade package ups the power to 542 horsepower and 587 lb.-ft. torque, and delivering a top speed of 208 mph. In stock configuration, the twin-turbo V8 makes 400 horsepower, peaking from 5500 to 6400 rpm and 450 lb.-ft. from 1750 to 4500 rpm.

Let’s have a look.