Circuitwerks, the company that sells a lot of the ebay test pipes, sells a "resonated" version of them which is what you're describing. I have no idea what they sound like but you may try to reach out to circuitwerks and ask, or find someone who has installed those.
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2000 Box Base, Renegade Stage 1 performance mods complete, more to come
When the owners manual says that the laws of physics can't be broken by this car, I took it as a challenge...
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