Porsche Cayenne V6 2008 Service Information page 63

Cayenne S Sports Exhaust System (Optional only for Tiptronic S)
A sports exhaust system is offered for the first time for the new
Cayenne S. The sports exhaust system is activated using the standard
Sport button. The sound of the sports exhaust system is controlled
while taking the load, speed, engine rpm and gear into account. Like the
standard exhaust system up to the muffler, the sports exhaust system
has two pre-catalytic converters and two main catalytic converters, the
two exhaust tracts of which are linked together via a crossover pipe
after the main catalytic converters.
The modified muffler in the sports exhaust system produces an sportier
V8 sound. The design of the tailpipes resembles the standard dual
tailpipes used on the new Cayenne Turbo. However, a connecting web
gives them a unique look reserved exclusively for the Cayenne S with
sports exhaust system.
Note
Water fording depth is reduced when the sports exhaust system is
installed. Consult vehicle owner's manual for specifics.
Fuel, Exhaust & Engine Electrics
1 - Dual flow exhaust system
2 - Sports exhaust system muffler
3 - Vacuum line for activation
4 - Diaphragm cell for switching
5 - Two tailpipes at the left and right with twin-
tailpipe trim
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