Is anyone running this dynomax muffler?
#22
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I'm running two of the ultra flow mufflers on my true dual setup, and it sounds similar to yours. The sound that I get is just bass, its almost like theres a subwoofer under the car while its idling. But its a pretty tame muffler I like it.
#23
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i just got a 99 z28 b4c car completely stock and went with same dynomax muffler i was disappointed at how quiet it was. if it doesnt get louder over time ill go to flowmaster. ihad a similar situation with a different ls1 z i owned i went with magnaflow instead of flowmaster and again it was too quiet for my taste and ended up going back to flowmaster 80 series