from my experiance with different wheels on my nx...
with agx hypercoils....
17x7 rims,40 offset, 205/50/17 tires didnt rub fenders but rubbed the shocks in back...so i put a 5mm spacer in rear
gr2s and h&r springs...
now i just had on a set of 17x7.5 rims,40 offset, 205/40/17 tires with a 20 mm spacer in the rear...and they rubbed cuz it was too low...now with the agx its a differnt story..
with a 15x7 +25,i would assume you would need to roll the fenders a ll bit,depending on the suspension setup...