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      11-12-2016, 04:38 PM   #29
kiloTHREE
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Drives: '13 xDrive28i
Join Date: Jun 2016
Location: MN

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All done.
Good news, everything bolts right up, front and rears.

Some stats:
Stock rear caliper weight: 7.2 lb
35i rear caliper weight: 7.2 lb

Stock rotor weight: 14.6 lb
35i rear rotor weight 18.0 lb

Stock front caliper weight: 12.2 lb
35i front caliper weight: 11.0 lb

Stock front rotor weight: 19.8 lb
35i front rotor weight: 23.8 lb

Total weight gained rear per corner: 3.4 lb
Total weight gained front per corner: 2.8 lb

While it's nothing to snear at gaining ~13 lb of unsprung weight, the benefits I believe are worth it.
The surprising part was the larger calipers up front were lighter than stock, pig iron vs aluminum.

Two annoying parts:
Bleeding the system (more on that later).
Rear brake pad sensor, you have to get behind the passenger rear fender liner:


Reach up in here and disconnect the white connector.


You'll be eating gravel for a couple hours.

Rear done:


Same thing driver side, no sensor to dick with on this side.


Rear done:


People with 17" wheels be wary, they may not fit. that rear is very close. My one set of 17"s did not, but my other set did. YMMV.


Sorry forgot before picture for rears.

Front before:


Front after:


Front brake sensor is on the drivers side:
Very easy to get to.


I had everything done hardware wise within 2 hours.
Left the brake bleeding for the morning.


This is where things got "FUN".
Bleeding was straight forward like any other car, however I think I got some air into the ABS system. This surprised me since I was super quick about changing the lines to the new calipers. Bled the brakes 3 separate times with no luck.

Long story short, I don't have any computer equipment to cycle the ABS, so after a few quick braking maneuvers down a gravel road, I bled the system again and even though no bubbles came out, the brake pedal firmed right up.

After a quick break in:




Old pile:


Forgot to remove my wood block spacers, felt kinda dumb but they didn't fall out after gravel road hoonage.


I'll have a performance report after break in, but so far very impressed with clamping pressure when stopped, and much more linear braking.

Last edited by kiloTHREE; 11-12-2016 at 04:44 PM..
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