Porsche 911 GT3 by Porsche USA

More catalogs by Porsche USA | Porsche 911 GT3 | 63 pages | 2019-02-07

Ads

Page 16 of Porsche 911 GT3

31 drive sport exhaust system the sport exhaust system of the new 911 gt3 has two front mufflers two catalytic converters and one rear muffler which discharges into the central twin-tract tailpipes the large volume of the exhaust system reduces exhaust back pressure and thus increases power output in response to data provided by two lambda sensors the stereo lambda control circuits regulate the composition of the exhaust gas separately in each exhaust tract another pair of sensors monitor pollutant conversion in the respective catalytic converters.