Z435is rotors, F30 backing plates, StopTech pads

[rwalker]

I've had trouble keeping my stock pads and rotors happy in my daily commute/romp in my 2010 E90 335i.

No real failing of the stock bits, it's just that my daily commute includes a run up to 120+ followed by a rapid downhill haul-down to 70 or so. Under these conditions, I've experienced a pronounced judder/moan/steering wobble that largely cures itself on cool down. Well, until the next day that is. BMW (and my dealer) have been very forgiving/generous. They've replaced my pads and rotors twice since new, only 19k miles ago...

My own attempt at a fix is F30 backing plates, Z435is rotors, and (while I'm at it) StopTech Street Performance pads.

The F30 backing plates have an air scoop that improves cooling air flow to the rotors. I have to admit it wasn't my idea: the E82 guys have been doing the same mod for years. The F30 bits mostly bolt right up. The top and bottom mounting points are identical to the E90. To properly secure the F30 plates to our spindles you need only drill one extra hole, which I templated by using the stock backing plates.

I won't get to try my romp until the 23rd, and I have a track day on the 27th. I'll keep this thread updated with how I've fared.

Pics attached.