Porsche Cayman User Handbook Manual page 36

Ignition system.
The ignition system is designed
for static high-voltage distribution.
Individual ignition coils on each
of the spark plugs ensure perfect
ignition every time. The individual
ignition coils are controlled
directly by the engine electronics.
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Cayman S exhaust system
Exhaust system.
The exhaust system – with twin
tailpipes on the Cayman S – is
made of stainless steel. Until it
converges in the connecting tube,
the exhaust gas is channelled
through two separate tracts and,
thanks to separate exhaust gas
cleaning systems, the exhaust
gas can flow more freely – for
increased power and torque.
The stereo Lambda control
Cayman tailpipe
Cayman S twin tailpipes
circuitry controls and monitors
each cylinder bank separately.
For each exhaust tract, four corre-
sponding oxygen sensors regulate
the composition of the exhaust
gas and monitor the conversion
of pollutants in the catalytic con-
verters.
A sports exhaust system – for a
more resonant sound – is
available as an option for
each of the Cayman models.