The /M Performance wheel has the /M blue/red stitching with blue stripe, while the Performance wheel has white stitching with yellow stripe.
The new wheel feels DAMN GOOD!!! I'm just a little afraid to get it dirty, so I always wash my hands before driving. I think it's about as thick as the standard wheel.
Let me get this straight... You are swapping out parts designed by some of the top engineers in the world because some guys sponsored by a company told you it's "better??" But when you ask the same guy about tracking, "oh no, I have a kid now" or "I just detailed my car." or "i just got new tires."