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991.1 GT3 Cup racing exhaust for adaptation to Porsche series manifold Porsche 911.
These systems are designed to dramatically reduce the noise of the 991 GT3 Cup race cars. The noise
level of this system is directly behind the silencer at below 98 dBa. Depending on the measurement
method (for example in Zandvoort), only 91.5 dBa are measured on our vehicles.


