Mufflers make a rattle/metallic noise

[miikepk]

I have Corsa axlebacks, Corsa resonators and steeda xpipe. I noticed when I turn the car on it can make a rattle/metallic noise. Is that normal?

I tried to capture on video but not sure how well you will be able to hear. Happens right on startup.

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[86pagt]

Active exhaust… possibly the valves rattling.. not sure if Corsa is the one that had that problem but I remember reading about the valves rattling on the M6G forum