New to me 2013 renegade 1000 maintanence questions

Ok guys I have been looking online for different kits for oil change and lubes
What are you guys using brp oils and filter? What about the air filter what do you guys recommend uni filter or knn I’ve decided on buying race driven pads and rotors as mine are shot. Does the fuel filter need to be changed also? Last question what spark plugs are you using. Stock motor only upgrade
Now is the snorkels thanks in advance!