Porsche 911 GT3 RS User Handbook Manual page 29

911 GT3 is painted black, whereas
on the 911 GT3 RS it is made from
titanium. The system's large volume
reduces exhaust back pressure to
increase power.
Each of the two banks of cylinders
has its own separate exhaust
tract. The position and design of
the catalytic converters enable
rapid warm-up to ensure effective
emissions control.
Thanks to its advanced exhaust
technology, both 911 GT3 models
meet the strict requirements of
international emissions standards
such as Euro 5 in Europe and LEV
II in the USA.
An oxygen sensor system monitors
the composition of the exhaust
gas individually for each bank of
cylinders. An additional oxygen
sensor in each exhaust section
monitors the conversion of pollu-
tants in each catalytic converter.*
· 39 · · 39 ·
911 GT3 sports exhaust system
What that means for you is more
power – but not at the expense
of the environment.
*Not in markets with leaded fuel.