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Old 03-16-2020, 10:58 AM   #57
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Join Date: Apr 2018
Location: Europe
Posts: 117
My Ride: 328Ci
Originally Posted by 4004 View Post
Is there any reason rear upgrade kits are not widely available for OEM M135 etc upgrades? The dust shield seems to be a direct replacement from 330 to M3. Is it due to the parking brake/hoses/caliper replacement not being made with a revised bracket?
Without knowing anything about brake bias or pedal feel... There were threads with some information before.

- Rear 135i does not fit with 330 disc offset is wrong: https://forum.e46fanatics.com/showpo...2&postcount=33

- Rear 135i fits with e46 m3 disc, 2mm of the disc is not swept: https://forum.e46fanatics.com/showpo...4&postcount=39

I don't know the implications, if any, of a 2mm rust ridge that never wears on the outside edge of the disc.
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