Your semi-truck is already powerful, but what if you want to improve performance even more? Here are some tips for improving your semi-truck's power.

Like many aftermarket performance components ... system should look like new for as long as you own your truck. Some of these exhaust systems offer a warranty to make sure that they do.

Meanwhile, aftermarket exhaust tips ... weird-looking vented exhaust tips on diesel trucks, it means the exhaust has an ...

The new Chevrolet Corvette has a trick exhaust system that muffles the exhaust note when the electronically controlled valve flaps inside it are closed, and let's the V8 roar when they're open.