[m2michael23]

I am still waiting for my EBII 335 to come. I would raise another discussion with you all.

As the title, do we need bigger shoes to get better grip for our f30?

i am thinkg 19' bbs ch-r. can they go 245 front, 265 rear? and what are the offset should be ?

[Jamesons Viggen]

I went with 275s rear and 245s front.

[TheObviousChild]

Thought this was going to be a heel-toe discussion.

[Jackson743]

I also went 245 fronts and 275 rears on 19's. Offset 35 front and 38 rear. Good luck.

[utenigma]

I have the 18" square setup on 8" rims - I'll be replacing the factory 225 rubber with 245 RE-11's on all corners when these P7's wear out

[M3takesNYC]

Originally Posted by Jamesons Viggen

I went with 275s rear and 245s front.

For a 328 with 250 hp? That much weight your lugging around only kills rotational weight and performance. That is more than the e90 m3 has and the m has plenty of grip with 420 hp.

[Jamesons Viggen]

Originally Posted by M3takesNYC

For a 328 with 250 hp? That much weight your lugging around only kills rotational weight and performance. That is more than the e90 m3 has and the m has plenty of grip with 420 hp.

Traction is privy to torque even more so than hp.

My car is tuned and the exhaust goes back on which added 20lbs of tq to the wheels. I will also upgrade my tune to stage 2 so I will be at OVER 300ft lbs of torque to the wheels.

You will note your M3 has 295ft lbs crank, or about 260 ish at the wheels which my car does stock.

So yeah, 275s are 20mm wider than stock which will be put to good use with the added power.

Your concerns with weight are also unfounded as I bought wheels and tires that are 4lbs lighter than stock for a 20% reduction of unsprung weight.

Enjoy your M3 though!

[M3takesNYC]

Won't bother explaining the whole torque thing here. Enjoy!