So I got new rims for my 2003 350z. Xxr 527s. There 19x8.75 front and 19x9.75 rear. And the offset is +15mm all around. My car is sitting at stock height. Are those good size rims for stock height? And should I add spacers to the rear for a flusher look?

And what size tires should I get for these rims?

 

I would do a 245/35 front and 275/35 rear , add spacers after you mount them if you want them to stick out more

 

install
than decide if you need spacers

its subjective

what i would put for tires you may not like
i would put 235/35/19 f & 255/35/19 r

 

So front tires in the rear and civic tires up front?

 

When choosing new tires, try to find front/rear pairs that maintain the stagger of at least ½" and less than 1". You should also look for front/rear setups that maintain the same OD as that will keep your speedometer and odometer accurate.

Here are the most common "upsized" tire combinations. These are known to work and keep TCS/VDC happy.

245/40/18 25.7"
275/40/18 26.6" (0.9" stagger)

245/35/19 25.8"
275/35/19 26.6" (0.8" stagger)

255/35/19 26"
285/35/19 26.9" (0.9" stagger)

245/30/20 25.8"
275/30/20 26.5" (0.7" stagger)

 

That being said if you have a base model I would put 245 or 255 in front and 295 or 305 in back Or as wide as the tire shop would be willing to put on that wheel. You shouldn't need any spacers.

 

9.75 wide, I wouldn't do more than a 275

 

Wow, I come back here and I see no wheel is safe from XXR! Pretty sad....

 

I want to add a 15mm spacer to the rear. Does the XXR 527 design allow for bolt-on spacers or do you have to press in extended studs? Bolt-ons seem like there would be stud protrusion and not fit the wheel.

 

You could cut down the stock studs since the nuts for the spacer recess into the spacer. Or install longer studs

 

Just weld the spacer to the wheel

 

I'm trying to avoid longer studs. The process looks like a PITA. If I cut studs though, I'm concerned any future wheels might not fit securely. Has that ever come up as an issue?

Appreciate the response.

 

Not doing that, but appreciate the suggestion.

 

just looked at some pics of the 557's, i think you may be able to position them where the extra holes go over the factory studs

**edit, after looking at this pic, it appears they have 2 different 5x patterns

 

Longer studs are great and really not that hard. Well worth it

 

And I suppose the safest route. I'll probably end up doing that and attempt the bolt-nut method for installing the new studs.

Thanks all.

 

I think my next set is going to be the 527F. ~$350 a piece.

 

Would I be able to do xxr 521's 18x8.5 (f) with 245/40/18 (f) and 18x10 (r) 275/40/18 (r) without rolling my fenders? Im at stock height also. The offset they give is +25 and +12. If I should change it then what should it be? Im kinda new with rims.

 

You will have plenty of room for those specs. I'm running 265 35 on 18x10.5 +20. So I'm about 11mm farther out at the wheel and 5mm less width on the tire. Mine is fairly flush but I have room to go.5-10mm wider.

Also if you want to be near flush the 18x10 with a 255 tire fits great up front too.

 

Fronts are fine. At stock height, the rears MIGHT be fine. Lowered, almost certain you'll rub without fender roll.

I've run over a dozen sets of wheels on my car up to 11" wide +25ish offset rear with no issues UNTIL my RPF1s with a modest 9.5" width but +15mm offset. Rolled and done, no more rub even with 285s on 10.5 wide +15mm offsets.

If you do not want to roll your fenders, stick with offsets in the mid-20s.