So the tape holding the mudguard Is coming off and I was wondering what kind of tape to use? Can I just use any double sided tape?

3M makes some professional grade stuff. Check it out on this search engine called Google.

use 3m body moulding tape. it can be found at walmart for around 5 bucks

Alright thanks

I buy my rolls from China $1 for 3m.

Get the black 3m black tape and not the gray one, so it will adhere well.