04-26-2022, 02:54 PM | #23 | |
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04-26-2022, 03:53 PM | #24 |
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You get slightly larger front calipers in order to fit the larger front disk (still 4-piston though). The rear stays the same.
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04-26-2022, 04:10 PM | #25 | ||
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04-26-2022, 05:29 PM | #27 | |
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But would larger discs do anything with the same size calipers and pads? Maybe calipers are part of the package. |
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04-26-2022, 06:13 PM | #28 |
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I talked with 3 different dealerships and code 840 is only applied with the High performance tire package. There was another thread where people that ordered high performance non run flats did not have code 840. So unless things changed since March
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04-26-2022, 06:54 PM | #29 | |
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You seriously trust dealers? My dealer did not know themselves, it was just added automatically when they submitted the order Edit: placed my order late March, accepted early April Second edit: I think I recall it was a mistake on BMW's side? Where at first the code was not added when it should have been and was recently corrected? |
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04-26-2022, 09:39 PM | #30 |
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Ordered my car with perf non-rft in Dec and it went into production in Jan.
My car always had the 840 high speed calibration since the order was placed.
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04-27-2022, 11:42 AM | #31 |
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Again, with a 378mm Rotor ofc you will have a larger caliper (same 4 piston) vs the standard 348mm disc. It's the same on the F30 M Performance brakes. Larger 4 piston caliper to accommodate the 370mm disc in the front..
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04-27-2022, 12:36 PM | #34 |
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Then you need to talk to someone else, because they don’t know what they’re talking about. You’ll find quite a few people here (including myself, and I took delivery of mine in December) who didn’t pay for this and still got option 840. You just need to option staggered non-runflats, which is no-cost.
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04-27-2022, 12:57 PM | #35 | |
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05-03-2022, 08:44 PM | #37 |
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14/15mm of difference in radius is pretty significant when it comes to the swept area of the rotor. I would imagine a larger/taller and potentially "longer" pad would be able to better utilize that larger rotor.
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05-07-2022, 07:53 PM | #39 |
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05-08-2022, 02:38 AM | #40 |
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I’ve ordered my UK car with the pack and curious to see what it will arrive with. Seems a no brainer at £300 if the brakes are upgraded and extra oil cooler. I think I also saw somewhere the front vents are opened up?
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05-09-2022, 06:55 PM | #41 |
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Agreed. If you have any plans on doing a track session, it is beneficial to have increased cooling capacity. I drove my ford focus ST on a track and the coolant, oil and brakes all overheated after 3 laps. Even without tracking the car, it’s nice to have piece of mind that your temperatures will be more stable in various driving conditions.
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05-09-2022, 08:41 PM | #42 |
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I may be an outlier, however they messed up my order and I had originally ordered high performance non run flats with increased top speed limiter. However, it was delivered with performance run flats but maintained 840 increased top speed limiter.
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05-09-2022, 09:39 PM | #43 | |
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The only performance tire option that doesn't add 840 is 1PP; that looks like a screwup to me. Not sure if BMW ever fixed that. The guide PDF here is older and probably a little out of date. |
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05-10-2022, 08:51 AM | #44 | |
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