Quote:
Originally Posted by hardparker
Quote:
Originally Posted by addy27
Alpina B6 from 2016 onwards (600hp) have 370x24 rear rotors. However, its interesting to note that the caliper itself is probably the same as the regular 550i (same as M5) but its the carrier that,s different. Since even the pads share the same part number
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I'd been looking into the 370/24 upgrade on the rear of my F25 X3, but bought parts for a 550ix 345/24 rear upgrade for it. That 370/24 rotor is most commonly found on the larger displacement F01 7 series cars, but was fitted to the F07 5 series GT, too. It would be very nice if just changing out the caliper carrier allows the 345 mm caliper to fit the 370 rotor.
It's either the caliper carrier, or the brake mount tabs on the hub carrier have more axial offset. That's unlikely though, since the OEM wants to change as few parts between trim levels on the same model. Caliper/rotor swaps are easy and cheap and they recoup the costs easily on sale. Not so much if there are snowflakes that take a different set of hub carriers.
You should grab some of those 370mm caliper carriers and find out. |
The issue here is that the calipers for the F01 and F07 are the ones without the Electronic braking mechanism and are shaped quite differently for both the carrier AND the caliper. On Alpina B6 2016 onwards, the carrier looks similar to stock 5/6 series but the part number is different and its painted blue. Cost of each carrier from the online stores is upwards of $300.