NASCAR will test a raft of potential updates this weekend for its troubled Next Gen stock car. Among them will be the addition of exhaust mufflers, which NASCAR is considering using for races in big ...

AVONDALE, Ariz. — The cars sounded better than they felt during NASCAR's two-day test session at Phoenix Raceway. NASCAR invited six drivers to participate in the test to try to improve the ...

For years, European car manufacturers have had to comply with strict EU laws on sound levels for production models. A great deal of time and effort is spent to develop suitably subdued exhaust systems ...

Measuring your Exhaust Back Pressure can help diagnose and pinpoint the source of issues like backfires, erratic engine ...