There's just something undeniably thrilling about the sound of a well-tuned diesel engine exhaust. Among all the ways you can upgrade your diesel truck, the exhaust modifications are what give your ...

30 April 2006 Twenty years ago, engine makers focused most of their energy on speed. Today, technology is driven by the need to cut costs and increase profits. The environment figures in these costs.

Ground tests recently completed by Boeing and General Electric prove the engines intended for the 747-8 will meet noise reduction targets, the companies said yesterday. The test results validate that ...

Anyone who has lived near an airport can attest that airplane engines are loud. If you've ever lived near a military air base ...