Replace exhaust system for better performance, but not all parts need ... Anywhere up to 10 percent — and more on turbo cars, where boost may be a little higher and/or come up faster.

Porsche has been tight-lipped about specifics, but the current 911 Turbo has a twin-turbo 3.7-liter flat-six developing 572 ...

This time, the subject of its attention is the new-for-2007 Porsche 911 Turbo ... exhaust system up to a throttle-controlled stainless steel sport exhaust system which optimizes performance ...

Aftermarket tuners are giving extensive support to the GR Yaris. The company Tom's latest build is an impressive example of ...

If you could only buy one Porsche, the 911 Turbo 50 Years could be the perfect choice, but there is one small problem.

The refreshed 992.2-generation Porsche 911 Turbo ... exhaust (right, below) and the optional Sport Exhaust (left, below). Some parts of a new rear fascia can also be seen on both cars, though ...