Brakes retrofit for e70

[sergeny1]

Would it be possible to retrofit brake calibers from new M3 or M2 ( 4 piston brembo calipers front and 2 piston rear brembo caliper ) on to the 08 x5 4.8i without ton of machine work ? Your feedback appreciated. Thank you.

[blue dragon]

Why, when the X5 M front calipers retrofit nicely (see signature). You'd have to fabricate a custom mounting bracket, and do all the calculations for piston sizing etc to see if the brake bias is affected.

[sergeny1]

blue_dragon - i can't find used x5m front calipers at decent price $$$ so far. will keep looking. Thx you for the feedback !

[sergeny1]

QQ - When I install x5m front calipers on 08 x5 do you i need to change brakes lines and dust shield ? Thank you in advance.

[blue dragon]

Yes, I chose to run the stoptech lines, and you will need a new dust shield.

[sergeny1]

Do you think i can use this kit on my 08 4.8 x5 with x5m calipers - BMW E70 X5 M S63 4.4L Braking Lines - 002565ecs02a - Exact-Fit Stainless Steel Brake Lines - Front - ES#2594637

[ard]

^ What did ECS say?

[conedoctor]

Originally Posted by ard

^ What did ECS say?

Lol, good point.

[Skyline]

Originally Posted by blue dragon

Why, when the X5 M front calipers retrofit nicely (see signature). You'd have to fabricate a custom mounting bracket, and do all the calculations for piston sizing etc to see if the brake bias is affected.

So what did you do to address brake bias? Does the X5M use the same rear brakes as a regular 4.8? Same master cylinder and proportioning valve?

[blue dragon]

Brake force distrubution