Yahoo Answers is shutting down on May 4th, 2021 (Eastern Time) and the Yahoo Answers website is now in read-only mode. There will be no changes to other Yahoo properties or services, or your Yahoo account. You can find more information about the Yahoo Answers shutdown and how to download your data on this help page.
Why do all the muscle cars sound different before the Clean Air Act mandated catalytic converters?
I know all cars have mufflers, but how could a catalytic converter change the cool "old school" sound of vintage before-1974 muscle cars?
There are no answers yet.
Be the first to answer this question.
Be the first to answer this question.