Update, when i finished work alittle while ago, i decided to lay under the car to see any leaks (easy to see in the cold, before you all call me nuts lol). Confirmed my thought about the downpipe-centre is leaking pretty bad, Would this be the cause to my exhaust not sounding as loud as it should?
Kinda happy i've seen the leak with my eyes, as now i know the new gasket is going to make a difference.