http://cnet.co/1pCRBfb Brian Cooley visits Johnny Franklin’s Muffler in San Rafael, Calif., and shows you how a dual exhaust system works and whether you’d want or need one in your car.
Top 5: Differences between US and German licenses
If you’ve ever been to Germany, you know it has a higher bar for getting a driver’s license than in the US. Brian Cooley shares his top five observations.