I have a ba xr6t sedan and want to be some bigger and wider wheels

im currently looking at some wheels which are

front 19x8.5 +35

rear 19x9.5 +35

will the offsets be alright and what tyres would be suggested without rolling guards.

are 9.5 wide legal?

9.5 not legal in qld on a ba

Not sure about legalities but +35 is fine, but will need a slight roll of the lip

+40 or 45 on the rear would be better +45 needs no rolling. front will be fine

why not roll guards?

Why roll guards if you dont need to

To fit bigger wheels...

Bigger is not always best.

Apart from the front wheels on a drag car, explain how?

Wider track - less body roll

Wider wheels - wider tyres - more grip

Why roll guards if you dont need to

better offsets or wider wheels