[bjc1973]

Looking at getting some new rotors for my 335d.has anybody used the Zimmerman drilled discs.i know people say some drilled are prone to cracking but would a decent quality rotor be ok

[Russbmw]

Aren't zimmerman a cheap eurocarparts supplied part? I'd use brembo or ATE if I was going aftermarket

[bjc1973]

Not sure. Just heard some people say they are oem quality. Also been looking at the stoptech grooved but recently read a couple of threads regarding some issues with them

[Riick]

They're all made in China

[ArcticRik]

I purchased and installed the zimmerman rotors last week on my E90, had no issues what so ever, to me they look like quality rotors.

[Dan-]

in the past I've only ever used performance friction 2 part discs and carbon lorraine Rc6 pads, that makes standard callipers 100x better without swapping for the likes of 4/8 pots

Ive not yet looked but i imagine PF make discs for the BMW

[marknjayne]

dont the z4m use floating discs that are a direct fit for 335's

[Dan-]

if thats the case that would be awesome, but from what i can find the 335i/d front discs are 348mm x 30mm and the Z4M front discs are 345mm x 28mm not a lot in it so could possibly work! if someone could confirm this ill order a set ASAP

[marknjayne]

http://www.e90post.com/forums/showthread.php?t=857252

[marknjayne]

http://www.ecstuning.com/BMW-E92-335...ors/ES2526447/