Quote:
Originally Posted by fivepointnine
NHP exhausts do not drone at any RPM
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Porsche Boxster 986 NHP Exhaust Muffler
"... The NHP Exhaust 986 Muffler V2, a Performance Muffler for the Boxster 986 with the least Cabin Drone..."
Every exhaust drones. It's a natural occurrence due to physics involved. What's important is muffling, or minimizing the drone or the shifting of it's frequency to acceptable/tolerable levels. Whether or not you agree it's still true. Glad to know NHP minimizes it to very acceptable levels w/o muffling sound too much. OEM's make it tolerable by muffling the sound immensely.
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