I did multiple searches over the span of 3 days and didn't really come up with any clear answers. I just came across a really good deal on 4 used Michelin Pilot Sport Plus A/S 245/40/18 with about 90-95% thread left for $325 mounted and balanced on my 04 Coupe 18" OEMs. So this would be going on all around

-Would VDC act up because of the rear sidewall decreasing (stock size 245/45)?
-Is this understeer or oversteer and how is this performance wise?

I'm really in a tight budget and I can't get new tires which cost like $800+ mounted and balanced but I need some rubber since my tires are counting their last breath . My initial plan was going 245/40 front and 245/45 rear but I can't find anything reasonable. Please shine some light on me to make a decision lol!

GO AHEAD and flame me!

 

https://g35driver.com/forums/wheels-...-here-320.html

 

That size will work fine on the front, but if this is a coupe, you'll need a 265/40-18 or 275/40-18 out back to keep the VDC happy.