Editor's Note, June 23, 2021, 10:00 AM: This article was originally published on June 16, 2021, after Porsche announced that the manual GT3 would not be available in California. That has since changed ...

In the wake of recent fines for motorcycle exhaust noise and the controversy of roadside testing procedures, another issue that unfairly affects riders in some states is the lack of testing stations.

This is a preview. Log in through your library . Abstract The effect of adjusting the kick-off speed to attain a "worst case vehicle configuration" on drive-by noise measurements using test procedure ...

The California Bureau of Automotive Repair (BAR) reports that approximately 90 percent of the nearly 600 vehicles that have undergone the state's new exhaust-noise test have been certified to be in ...

Modern digital receiver/exciters (DREX) used in radar and communications systems are capable of significant self-testing in a production factory environment. Long past are the days where the analog ...