Idler arm gouging headpipes

My idler arm is cutting a nasty groove into my new TTI passenger side headpipe. I've already bumped up the engine height with three big washers under the passenger side motor mount, I don't think I can possibly put any more washers under there because there won't be enough bolt left sticking through to attach the mount to the K-member. What else can I do to get the exhaust up off the idler arm so it's not rubbing through? Just dent it in around where it's rubbing? I'd prefer that to having it rub all the way through, at least. You'd think when you have an exhaust shop install something they'd at least check the clearance...