It was a few years ago, but as I remember, the exhaust dropped down enough once it was off it's rubber mounts.
https://www.ebay.co.uk/itm/GENUINE-V...EAAOSwv0tVJ87T
Like yours, it only leaked when filling up. I think the slackened the front subframe mounts, then dropped the rear bolts right out, but even then, it took the weight of a pretty hefty guy to hanging off it to get clearance. The air was pretty blue by the time they'd finished!