The 17x8 +42 is the same size Jacob (REXXED 2.0) has and the clearance really isn't that close. His issues is the 235/45R17 tyres which bulge slightly past the rim face.

If he had a 225/45R17 the tyre wall would be flat with rim face there would be more clearance and he might not have needed the roll (although I would rather spend $132 then heard the sound of rubbing tyres).

Also depends on ride height, because stock height should not cause any rubbing unless you need 250KG of cement from bunnings. If you are on a lowered spring (10mm - 15mm) You still should be fine, but past that point you will be getting close to the guards when the suspension compresses.

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MY01 JDM EVO VII - 230KW / 430NM @ 1.6BAR