Nireeka

Fork / Shock Upgrade

Hello, I am looking for a recommendation on upgrading my fork and rear shock on the Mega 1500.

Can someone point me in the right direction on mid to high tier recommendations?
I have no Idea what sizes I need or what to begin looking for... I'm 6'5 and 285lbs and the stock shocks just aren't built for a guy my size, (Yes I have adjusted pressures etc)

Thanks Pete