Bnoble

Hey everyone, I know it’s probably been beat to death on here but I can’t figure out how to find the other posts about it but just curious on anyone running negative offset rims on a 2015 Sierra 2500HD, looking at a set of rims online with -18 offset, currently running 275/65/20 tires with no lift and rubs a tiny bit on the mud flap when turning hard to the right, just curious if it’ll make the rubbing worse or not