2001 Z3 Coupe 3.0 Cross Drilled Rotors?

[68Elanplus2]

Hi Folks -

In the next couple of months I'll be in need of replacement cross drilled rotors for my 3.0 Z3 Coupe. I bought the car with these installed by the P.O. Any suggestions as to best place(s)/prices to purchase replacements?

Thanks in advance!

[gwatson]

You're wasting your money with drilled... drilled rototrs are 99.9% cosmetic. Go for either slotted or standard. I had stoptech slotted rotors on my Z4, I didn't notice any bad vibration through the brake pedal which is some times associated with grooved discs and they always kept the pads fresh.. never glazed over.

Good read here: http://www.stoptech.com/tech_info/faqs.shtml

Edited by gwatson on Thursday 10th April 08:56

[David1975]

if these use the same floating disks as the M Coupe then stick to them. From what i have read non after market disk has worked as well as the oem floater unless big money is spent.

[Shropshiremike]

David1975 said:

if these use the same floating disks as the M Coupe then stick to them. From what i have read non after market disk has worked as well as the oem floater unless big money is spent.

Are the BMW OE optional ones cross-drilled or are the holes cast like in some of the Porsche ones?

[68Elanplus2]

gwatson said:

You're wasting your money with drilled... drilled rototrs are 99.9% cosmetic. Go for either slotted or standard. I had stoptech slotted rotors on my Z4, I didn't notice any bad vibration through the brake pedal which is some times associated with grooved discs and they always kept the pads fresh.. never glazed over.

Good read here: http://www.stoptech.com/tech_info/faqs.shtml

Edited by gwatson on Thursday 10th April 08:56

Don't slotted discs cause excessive/quick wear?

Thanks again.

[gwatson]

Not sure excessive is the right word.. but I guess in theory they will wear out slight quicker.. maybe 2k less on a set or something. But in my opinion keeping the pads "fresh" it is def worth it.. they feel as good 10k miles later than the day I put them on (well after the run in period)

G

[68Elanplus2]

Thanks!

[StuB]

GSF do decent replacements. Best 'on a budget' stoppers for mine were Brembo Max cast iron discs (grooved) and Pagid pads, but GSF don't do Pagid any more. They sell Zimmerman discs, which I think are drilled, if you're desperate for drilled discs.