M3CS PS4S sizing

[Gtracer]

After searching a ton on here, I decided to post this up. I just purchased a 2018 SMB m3CS with 7200 miles. The car is prestine but the pilot super sports are OEM from 2018 and they're just hard and loud. I am looking at going to the Pilot sport 4S which I usually switch every single car I own to, I'm a huge fan of the tire. I am looking at doing the 265/35-19 and 295/30-20 rear. The oem cup2's we're the 265/35-19, that size in the 4S model is closer to the factory width patch difference to the 255/35-19 and 285/30-20 that come stock.

SO long story short, is there anyone Running a 265/35-19 front and 295/30-20 pilot sport 4S or Cup2 on their CS or on 763 wheels? Thanks in advance!

[Nyc911]

I have the same question but I was wondering if we can get away w 265/35/19 and 305/30/20 and run no spacers on stock CS wheels

[avantix]

Also in the same boat with my M4CS. I actually ordered a set of G80/2 BMW star spec PS4S which are 275/35/19 and 285/30/20 after watching the video review of those star spec tires.

The front tire width on the 275/35 PS4S is only 0.2 inches wider than the 265/35 Cup 2 so there should be no issue, plus I am running 15mm spacers.

[avantix]

Originally Posted by Nyc911

I have the same question but I was wondering if we can get away w 265/35/19 and 305/30/20 and run no spacers on stock CS wheels

I think the rears will almost certainly rub plus that setup will result in understeer from I what I gather.

[RugbyBro]

Originally Posted by Nyc911

I have the same question but I was wondering if we can get away w 265/35/19 and 305/30/20 and run no spacers on stock CS wheels

305s are too wide, forum members here have managed to squeeze on 295s on their 10in rears.