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2Addicts | BMW 2-Series forum Technical Topics B58 (M240i) Engine, Transmission, Exhaust, Tuning Must Have B58 Mods/Upgrades?

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      12-23-2021, 05:33 PM   #1
HootisTigglebits
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Arrow Must Have B58 Mods/Upgrades?

I'm coming from a M235i so I had an aftermarket charge pipe, bigger intercooler, exhaust, etc. I was wondering what some recommended upgrades to the B58's are?
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      12-23-2021, 06:04 PM   #2
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It will be a rwd. Currently I'm just interested in doing some bolt ons such as intake and exhaust, but if anything else is recommended such as if the charge pipe on the B58's suffers from the same issues as the N55's then I'd want to change that out as well.
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      12-24-2021, 08:32 AM   #3
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Quote:
Originally Posted by HootisTigglebits View Post
It will be a rwd. Currently I'm just interested in doing some bolt ons such as intake and exhaust, but if anything else is recommended such as if the charge pipe on the B58's suffers from the same issues as the N55's then I'd want to change that out as well.
From what I have read, the b58 the charge pipe was redesigned and is different than the one on n55. Stronger material with less failures so opted not to swap it out.
25K miles later on my 17 M240i running Dinan elite V2 tune with modest power increase, Dinan carbon fiber intake, Dinan midpipe/exhaust, there has been no issues whatsoever.
Enjoy your new ride!
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      12-24-2021, 09:41 AM   #4
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Quote:
Originally Posted by HootisTigglebits View Post
I'm coming from a M235i so I had an aftermarket charge pipe, bigger intercooler, exhaust, etc. I was wondering what some recommended upgrades to the B58's are?
tune + intake + Downpipe are must-have mods for power.

Then you can add an upgraded fuel pump, charge pipe, heat exchanger, and turbo
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      01-25-2022, 03:59 PM   #5
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Quote:
Originally Posted by mike@x-ph.com View Post
Quote:
Originally Posted by HootisTigglebits View Post
I'm coming from a M235i so I had an aftermarket charge pipe, bigger intercooler, exhaust, etc. I was wondering what some recommended upgrades to the B58's are?
tune + intake + Downpipe are must-have mods for power.

Then you can add an upgraded fuel pump, charge pipe, heat exchanger, and turbo
Intake isn't needed for power. Haven't seen any difference on any modern bmw's changing the intake.
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      01-25-2022, 05:46 PM   #6
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Quote:
Originally Posted by FutbolManiac View Post
Intake isn't needed for power. Haven't seen any difference on any modern bmw's changing the intake.

10 whp posted by VM engineering

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      01-25-2022, 06:07 PM   #7
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Quote:
Originally Posted by FutbolManiac View Post
Intake isn't needed for power. Haven't seen any difference on any modern bmw's changing the intake.
Dinan's CAI results are shown below. FWIW, Dinan is an excellent source for stock power ratings.

I find it useful to see what vendors' modifications are producing compared to our cars' unmodified results.

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      02-04-2022, 03:19 PM   #8
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Decisions should include not only potential power AND torque gains at what RPM but where your normal driving RPM range is......the graph that was provided gives a good example of why this is worth noting.
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