11-12-2020, 09:46 PM | #1 |
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Blue Msport Calipers
I'm still so confused about this. I have a 2017 340i xDrive Msport w/o the track package. I currently have the front gray calipers, and I'm looking to upgrade the rears to the blue Msport brakes. What size calipers do I need to do this upgrade? 340 or 370?
I know there are a ton of different threads about this, but I can't seem to figure out the right ones for my car. Hope someone can help me with this. |
11-12-2020, 10:07 PM | #2 |
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340 and 370 are for the fronts.
If you have the 4 piston grey front calipers then you already 340mm in front. So some cars came with blue calipers that accommodate 340mm rotors and others came with blue calipers that can accommodate 370mm rotors. its stamped on the rear of the caliper what size rotor the caliper can accommodate. for the rears you more than likely have a single piston caliper. you can upgrade to a two piston mperf caliper which will require a 345mm rotor. |
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11-12-2020, 10:14 PM | #3 | |
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11-12-2020, 10:21 PM | #4 | |
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the 370/340 is for the front only. you already have the 340mm rotors on the front of your car. |
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11-13-2020, 12:06 AM | #5 | ||
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11-13-2020, 09:16 AM | #6 | |
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11-13-2020, 12:52 PM | #7 |
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Buy these and they bolt up. you just need rotors.
Get your calipers powdercoated the color you want and you are good to go. https://f30.bimmerpost.com/forums/sh....php?t=1766200 |
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11-22-2020, 11:40 AM | #9 | |
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in front, Some of the F series cars got blue calipers with 340mm rotors and some came with the 370mm rotors. The calipers for the 370 have longer mounting ears to accommodate the larger rotor. The F30s with the larger discs have the m-performance pack or whatever its called (sport?). The F80 M3 comes with a 370mm rotor in front, 4 piston calipers and will mount to the F30. |
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11-22-2020, 04:36 PM | #10 | |
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M Sport Brakes (blue)on F22 (all engines) = 340/345 M Sport Brakes on (blue) 6cyl F3x= 370/345 Note m sport brakes are a standalone option or included in track handling package. Not part of normal m sport package. M Perf brakes = 370/345 brakes w/ dimpled rotors
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11-23-2020, 07:44 AM | #11 | |
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11-23-2020, 06:50 PM | #12 |
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Thanks 435i_Phil
Regarding the BBK...are you noticing sounds coming from the disks? Reading other threads, there seems to be a few upset drivers out there that don't like the slotted/dimpled disks. thx |
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11-24-2020, 02:34 PM | #13 |
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11-24-2020, 04:53 PM | #14 |
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Yes the F8x and f3x 6cyl 370mm use the same front caliper (different discs). On the back its stamped 370/380.
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11-25-2020, 05:47 AM | #15 | |
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11-25-2020, 09:13 AM | #16 |
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Same pads, same bolts, same everything. The M upright is what makes it possible to fit the two different rotors.
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