Any way to reduce or lower the exhaust sound of a cold start?

[BmacIL]

I had Livernois give me a cold start modification to my tune when I had the Xtreme. It cuts the spark retard and significantly quiets down the exhaust to near warm levels. That said, there's still about 1.5-2 seconds of the very loud bark as it fires up (necessary to get it running). I'm not using that now with the Corsa Sport catback as it's still very loud on cold start, but not wake the neighborhood.

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