04-14-2021, 02:42 PM | #1 |
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BMS Diff Brace
Like to hear from rwd or xdrive owners with this mod and if it made a difference. At $130 and simple installation it seems worth it, but still would like to hear what improvements were noticed/felt.
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2019 M240i M Performance Edition / xDrive / ZF8 / BM3 Stg 2+ E30 / xHP Stg 3 / Dorch Stg 2 HPFP / Evolution Racewerks Catless Downpipe / MPPSK Exhaust / FTP Drop in Filter / FTP Intake Pipe / FTP Chargepipe / NGK 94201 Spark Plugs .022 / Michelin PS4S - 225/35/19 + 245/30/19
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04-15-2021, 12:17 PM | #3 |
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Do you have any slop in the rear end? It mostly fixes diff movement that causes wheel hop. I'm going to try and address it with subframe mount inserts first, which just happen to be about the same price for the full set. Also the diff brace can tend to increase NVH.
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04-15-2021, 09:13 PM | #4 |
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I have it in my n55 f30
It definitely tightens it up; but ultimately the subframe bushings are sloshy but it does add stability especially under load, I haven't launched the car yet. I have akg 75d subframe bushing I'm going to be installing shortly |
04-16-2021, 10:17 AM | #5 |
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I pulled the trigger on the brace and should get it on 4/19. I'm thinking of installing the powerflex front and rear subframe mount inserts and diff inserts.
https://www.powerflexusa.com/shop/pr...t-inserts-2911 https://www.powerflexusa.com/shop/pr...t-inserts-2910 https://www.powerflexusa.com/shop/pr...t-inserts-2899 Should I get the street or race version?
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2019 M240i M Performance Edition / xDrive / ZF8 / BM3 Stg 2+ E30 / xHP Stg 3 / Dorch Stg 2 HPFP / Evolution Racewerks Catless Downpipe / MPPSK Exhaust / FTP Drop in Filter / FTP Intake Pipe / FTP Chargepipe / NGK 94201 Spark Plugs .022 / Michelin PS4S - 225/35/19 + 245/30/19
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04-16-2021, 11:15 AM | #6 | |
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Quote:
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04-16-2021, 04:58 PM | #7 |
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I'm worried that its going to increase NVH compared to the street version.
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2019 M240i M Performance Edition / xDrive / ZF8 / BM3 Stg 2+ E30 / xHP Stg 3 / Dorch Stg 2 HPFP / Evolution Racewerks Catless Downpipe / MPPSK Exhaust / FTP Drop in Filter / FTP Intake Pipe / FTP Chargepipe / NGK 94201 Spark Plugs .022 / Michelin PS4S - 225/35/19 + 245/30/19
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04-16-2021, 05:31 PM | #8 |
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I'm also eyeing the whiteline stuff as they seem to be very popular with the UK m140i/m240i crowd.
https://whitelineperformance.com/pro...19-bushing-kit https://whitelineperformance.com/pro...17-bushing-kit
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2019 M240i M Performance Edition / xDrive / ZF8 / BM3 Stg 2+ E30 / xHP Stg 3 / Dorch Stg 2 HPFP / Evolution Racewerks Catless Downpipe / MPPSK Exhaust / FTP Drop in Filter / FTP Intake Pipe / FTP Chargepipe / NGK 94201 Spark Plugs .022 / Michelin PS4S - 225/35/19 + 245/30/19
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04-17-2021, 01:36 PM | #9 |
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04-17-2021, 04:40 PM | #11 |
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do you feel like it helped tighten up the rear?
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2019 M240i M Performance Edition / xDrive / ZF8 / BM3 Stg 2+ E30 / xHP Stg 3 / Dorch Stg 2 HPFP / Evolution Racewerks Catless Downpipe / MPPSK Exhaust / FTP Drop in Filter / FTP Intake Pipe / FTP Chargepipe / NGK 94201 Spark Plugs .022 / Michelin PS4S - 225/35/19 + 245/30/19
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04-18-2021, 10:32 AM | #12 |
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08-16-2021, 01:03 PM | #13 |
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What was the install like on this? I ordered mine before realizing one needs to drill holes.
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