i have a 2003 gt i had a slp catback on it and didnt like the way the mufflers sounded so i got them cut out to put on some super 40s but i got sent the
wrong ones i didnt notice this until i already cut the mufflers off [my mistake]
will running my car without mufflers for a week hurt it any
That will only hurt your ears ... and everyone else's too. I would at least put a couple turn downs on it so you're not blowing the exhaust directly on the tank.