Exhaust Manifolds - Porsche 911 GT3 Cup MR Gen. II Technical Manual

3.2 Exhaust Manifolds

► The exhaust manifolds of the 911 GT3 Cup MR Gen.II correspond to the standard exhaust ma-
nifolds. Due to the closed underbody on the 911 GT3 Cup MR Gen.II, cool air can no longer flow
around the exhaust manifold. In order to protect surrounding components from excessive heat ra-
diation / heat transfer, the exhaust manifolds have been equipped with a special heat protection
insulation.
Only exhaust manifolds with heat protection insulation may be driven
WARNING
with. Failure to observe this may damage surrounding components
due to the effects of heat. Risk of fire!
The heat protection insulation must be checked for damage before
WARNING
each session. Rubber parts (pickup) must not accumulate on the ex-
haust manifolds. Risk of fire!
The brackets including clamps of the 911 GT3 Cup MY 2016 must
NOTE
NOT be installed. This could damage the heat protection insulation.
The specified tightening torque for the M8 fastening nuts for connec-
NOTE
ting the manifold to the engine block must be observed. The metal
seals between the manifold and the engine block must be replaced
after each disassembly.
The maximum runtime of the exhaust manifold described in the 911
NOTE
GT3 Cup Gen.II manual remains unchanged.
Only new exhaust manifolds can be provided with the heat protection
insulation. New exhaust manifolds with heat protection must be obtai-
ned from Manthey-Racing GmbH.
Version V2, 08/2020 Porsche 911 GT3 Cup MR Gen.II
EXHAUST SYSTEM & FUEL SYTEM | Exhaust Manifolds
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35 Nm
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