The Northern California–based CarBahn gives the BMW M4 Competition xDrive an aftermarket makeover that builds on an ...
Few automotive brands are more iconic than BMW M. Originally founded as the racing division of the German luxury carmaker, it ...
The latest BMW M4 is more grown up ... Exiting out back is a sport-tuned exhaust system with electronically-controlled flaps that can deliver a more raucous note when requested.
a better-flowing titanium exhaust system, and a cold-air intake. CarBahn’s CB3 Signature Package turns the BMW M4 Competition xDrive into a carbon-fiber-clad tour de force. Drew Phillips ...