Actually the angled down exhaust tip reduced my in car noise. It helped by bouncing the sound waves off the pavement away from the car. Before I had the tip and again when I lost it, the sound tended to bounce off the curb and back into the cabin when I had the widows rolled down. Also some of the exhaust was hitting the bumper and transmitting the sound into the cabin.

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green 85 300SD 200K miles "Das Schlepper Frog" With a OM603 TBO360 turbo ( To be intercooled someday )( Kalifornistani emissons )
white 79 300SD 200K'ish miles "Farfegnugen" (RIP - cracked crank)
desert storm primer 63 T-bird "The Undead" (long term hibernation)

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