MV8 said

I prefer to use walkers mufflers. The quiet flows are made better and are more effective. Use the biggest case that will fit the space. The soundfx are not straight through.

There are also tail pipe inserts that can be bought or made.

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Map63Vette said

Just because I'm curious, is this a sleeper thing or do you just genuinely want a quieter car? I did a cam swap on my Viper a while back and have never been able to quiet it down since. Just not a lot of market for quiet with those cars, especially when you need 3" exhaust to go with it. Not a commonly searched set of terms it seems, lol.

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