How do I make my cold start quieter?

[JR Supra]

I have a locked ECU 2021 supra with a JB4 and a CATLESS DOWNPIPE. Sure it sounds AWESOME, but in the cold NY morning this car makes my house shake. I built a box and stuffed it with towels and crap and it works a little, but the car is still really LOUD. So my question is how can I make my cold starts quieter. Im using JB4. Is there something I can build or buy for the mornings. I know that some people can tune to cold start out, but I cant do that.

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[underdonk]

Ear plugs

 

[Nkba90]

A real tune on Ecutek if you request it and I think on bm3 as well would be able to disable it.

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