I'm wanting to take my exhaust off and run open downpipe for a few days before i put on my new exhaust.

I've seen some videos on youtube and such and it sounds beastly haha.

I guess my question is this going to cause any problems and/or a check engine light? or could it be potentially harmful to my car?

I'm not looking to do this long term just a for a day or 2 at the most before i get my exhaust on.

just wanted some insight before i do it.

thanks in advance!