Hi
I have a 981 Cayman GT4, with Fabspeed headers, 200cel cats, PSE after the cats, IPD plenum, RPM low ratio crown wheel and pinion.
It is 109dB static with exhaust valves closed without clutch dipped and marginally lower with clutch dipped.
I understand that JCR are developing some noise reducing exhaust tips but they haven’t been released yet.
I’m keen to book some Club trackdays for 2023. Has anyone successfully reduced the dB on the GT4 (I appreciate that even completely standard they are pushing most trackday noise limits even the higher ones at 105dB).
With many thanks.
Mark
I have a 981 Cayman GT4, with Fabspeed headers, 200cel cats, PSE after the cats, IPD plenum, RPM low ratio crown wheel and pinion.
It is 109dB static with exhaust valves closed without clutch dipped and marginally lower with clutch dipped.
I understand that JCR are developing some noise reducing exhaust tips but they haven’t been released yet.
I’m keen to book some Club trackdays for 2023. Has anyone successfully reduced the dB on the GT4 (I appreciate that even completely standard they are pushing most trackday noise limits even the higher ones at 105dB).
With many thanks.
Mark