1991 325i Brake issues

[BBarrett]

I have to replace the rotors on my 1991 325i.
All the rotors I look at have 4 lug holes, but mine has 5.
Any ideas?

[thejlevie]

E30 rotors have five holes, four for the lugs and one for the rotor retaining screw. That said, if you have five lugs the car has been modified since it left the factory.

[BBarrett]

Mine definately has 5 lug holes.
I have no idea what rotor to buy.

[thejlevie]

Lets make sure what car we are talking about. Is this an E30 or an E36? A 91 could be either.

If it is an E30 and has five lugs, the car has had parts changed. There are a couple of way to do that. One is to use E30 M3 parts and the other is to use E36 parts. You can figure out which by measurement of the rotor diameter and thickness and comparing that to what realoem.com shows for the possible donors.