u/Acrobatic_Onion_2324

I’m having a rattling going on around the downpipe area of my st, at first I assumed it was a bad exhaust leak but I’ve gonna over it and there’s no way. I checked all my suspensions and it’s all tight, and no cracks or leaks on boots or ball joints. I’m just wondering would it be my rear motor mount, the issue is the rattling/ clunking noise is inconsistent sometimes it will happens when I’m taking off in first, sometimes it won’t. It does it up hill and will just rattle so bad. I can’t find a straight answer and don’t wanna waste time if it sounds far fetched. Thanks