Bumbaclartbam

Hello, i own a VW 2015 GOLF R MK7 and just recently got it back from a propshaft issue (The propshaft donut snapped and shredded my heatsheild 🙂 ) Today whilst i was driving it having a bit of fun, I noticed this knocking sound when i started to accelerate. The sound got faster and louder the quicker the car went. When driving 'normally' there is no noise at all? Only when you give it some beans. I have not launched the car either, the only thing i'm putting it down to is my area does have alot of speed bumps which i take my time over. Any help would be greatly appreciated. Bam