Originally Posted by michaelp

Also considering switching to the Goodyears. I had them on my base 992, no complaints. Current GTS has the PS4S. The one complaint I have with the Michelins is lack of performance when cold. This is a generally a non-issue for daily driving and even on the track, as long as you warm them up. Takes about one or two laps to get them to temp. I've had some sketchy first lap moments on the PS4S, but fine once they have some temperature in them. For autocross they aren't great, very little grip when cold. I have them on my GTS, and the rear grip is terrible. GTS easily overpowers these tires. I also autocrossed my Base 992, which had the Goodyears, traction felt great, but this could've been due to the power difference. I'll be switching to the Goodyears on the GTS on the next go around. Would like something that can perform better from cold, and have equivalent performance on the track. Note the Michelins are a 300 treadwear tire vs 240 for the Goodyear -- hopefully this is indicative of better traction. It's unfortunate we don't have even lower treadwear options available in stock 992 sizes.

Originally Posted by zachr

Why? The N spec cup2s are just one section larger than the stock tires: 245F vs 255F, and 305R vs 315R. Do they not fit on the OEM 20F/21R wheels? I thought several people on this forum have fitted tires one size up with no issues.

Knowing you, I assume you've ordered ultra lightweight magnesium wheels or something. But I'm not sure how that matters for the tire sizes?

Originally Posted by CanAutM3

They will fit, but not perform optimally. Spec tire are specifically designed, developed and optimized around a given chassis application which includes wheel width.

Originally Posted by Wilder

My friend, it's the same chassis. My incoming wheels are GT3 widths to fit GT3 size tires. There's zero issues running a slightly wider wheel/tire combo. You're complaining about grip. This is the proper way to solve it.

Originally Posted by michaelp

Did you happen to see this thread:
https://rennlist.com/forums/992/1266...ls-on-gts.html

GT3 wheels on a GTS stick out 1-2cm in the rears. That's why I was curious if you got a different offset.

Originally Posted by Jeff Whitten

If you look at his black car he’s posted on, he has custom wheels made then and now a second set for his new one. He’s dialing in the fitment to work with a GT3 size tire and width that has the right offset for his fitment. You can have this done with any custom wheel. Check out the aftermarket wheel thread for more info on folks that run other than stock configs.

https://rennlist.com/forums/992/1115...el-thread.html

Originally Posted by michaelp

Did you happen to see this thread:
https://rennlist.com/forums/992/1266...ls-on-gts.html

GT3 wheels on a GTS stick out 1-2cm in the rears. That's why I was curious if you got a different offset.