2018-19 m550 modifications

Sl0wDwnM550 · 08-05-2023, 09:27 PM

I don't usually see any post talking about mods for the m550i 18-19. wanted to ask everyone for their step-by-step mods to make some power. I know of the down pipes, intakes and e tune and later on turbo upgrade. but I wanted to ask if there's a need to upgrade the fuel pumps? or run better fuel lines? any supporting mod that will be wise to do to help out upgraded turbos. I'm coming from the n54 community with my 535 and there was info on the right way to mod them, I'm just hoping there's info for the m550. thank you!

mike@x-ph.com · 08-06-2023, 01:02 PM

The fuel upgrade depends on your map, mods, and the fuel you are using.

Unless you are going for extreme power gains, you wont need this upgrade

Sl0wDwnM550 · 08-06-2023, 05:38 PM

Quote:

Originally Posted by mike@x-ph.com

The fuel upgrade depends on your map, mods, and the fuel you are using.

Unless you are going for extreme power gains, you wont need this upgrade

Oh okay gotcha thank you! What about coolers and intakes ?

mike@x-ph.com · 08-07-2023, 10:41 AM

Quote:

Originally Posted by Sl0wDwnM550

Oh okay gotcha thank you! What about coolers and intakes ?

i'd do the intake after the tune and downpipes
Coolers
and then turbos

430Scud · 08-07-2023, 07:08 PM

A stage 1 tune is the best bang for your buck. You can go from a stock 456hp to 570-590hp depending on tuner you buy from. $650 to $750.

Intakes and exhaust have only a mild effect (maybe another 20 to 25hp for a bunch of money...$2k+) Intercooler and turbos are even more $$$, invasive and potentially problematic if not done right by an experienced tuner.

If you goal is big numbers, get a 2020 with the larger turbos already. The 2020 on up make big numbers with a stage 1 tune. Amazing in fact.

bapmax · 09-13-2023, 04:18 PM

Great questions OP! Just got my 2019 m550i in April. So far my BM3 stage 1 93 (through X-PH) has been terrific, definitely worth it. @430Scud which tuners can get the 18-19 m550i to 570-590 with just stage 1? I will definitely check them out. OP I think we can also look into the XHP tcu tune for some performance gains but I hear varying reviews on it for our specific cars.

23109VC · 10-05-2023, 12:06 AM

I have a 2018 M550.

Is the power gain with a 91 octane piggyback or flash tune a huge gain or just modest?

WretchedRefuse · 10-05-2023, 06:36 PM

Quote:

Originally Posted by 23109VC

I have a 2018 M550.

Is the power gain with a 91 octane piggyback or flash tune a huge gain or just modest?

What 430Scud said: A Stage 1 tune is the single best bang for the buck. I would call it a huge gain.

23109VC · 10-05-2023, 09:34 PM

Quote:

Originally Posted by WretchedRefuse

What 430Scud said: A Stage 1 tune is the single best bang for the buck. I would call it a huge gain.

Now you are making me want to tune my car!!!!

kosmokratur · 10-19-2023, 01:19 PM

I have a stock 2018 M550. I've driven a 2018 with BM3 stage 1. The performance difference is dramatic, in my opinion. Not "Ladas into Lambos" but there is no mistaking that the tuned car is way zippier. I just hope the owner doesn't bend a rod lol.

Zwmack · 12-19-2023, 11:23 AM

Agreed. I did bootmod3 stage 1, and xhp. No other mods and the car flies! I don't think any of the bolt ons are worth the money for the power when compared to the tune. Just my humble opinion

Sam_M550i · 12-19-2023, 02:07 PM

Quote:

Originally Posted by Zwmack

Agreed. I did bootmod3 stage 1, and xhp. No other mods and the car flies! I don't think any of the bolt ons are worth the money for the power when compared to the tune. Just my humble opinion

I've got stg 1 BM3 ony 2018 M550i, love it. Contemplating a transmission tune, happy with it? How's the drivability? Drastic performance gains, such as acceleration?

Zwmack · 12-19-2023, 02:09 PM

Quote:

Originally Posted by Sam_M550i

I've got stg 1 BM3 ony 2018 M550i, love it. Contemplating a transmission tune, happy with it? How's the drivability? Drastic performance gains, such as acceleration?

It's amazing! I strongly recommend tuning the transmission. You feel the difference in power with the insane torque unleashed with tuning the transmission. Definitely worth the extra $500

Sam_M550i · 12-19-2023, 02:18 PM

Quote:

Originally Posted by Zwmack

It's amazing! I strongly recommend tuning the transmission. You feel the difference in power with the insane torque unleashed with tuning the transmission. Definitely worth the extra $500

Was flashing simple? I read there is a lot of setup initially? I want comfort to remain soft and smooth as stock and other mode can be as wild. What I dont is a very jerky shifting car. What stage you running?

Zwmack · 12-19-2023, 02:27 PM

Quote:

Originally Posted by Sam_M550i

Was flashing simple? I read there is a lot of setup initially? I want comfort to remain soft and smooth as stock and other mode can be as wild. What I dont is a very jerky shifting car. What stage you running?

There is no change to comfort mode... There are three stages for sport transmission, I use Stage 3 which is the most aggressive and honestly it's not jerky, just aggressive. You can try each of the different stages and see what feels the best for your sport+ driving. Comfort and eco stays STOCK. It's simpler than the bootmod. Super quick.

oldtexasdog · 12-20-2023, 08:45 AM

I did a stage1 93 octane BM3 on my 2020 M550 and it was the best money I have spent. It made the car feel more comfortable to drive with the linear HP boost, like butter smooth, but still slap your moma if you want.

08-05-2023, 09:27 PM	#1
Sl0wDwnM550 Registered 2 Rep 2 Posts Drives: 2019 M550 2010 535 2001 540 Join Date: Aug 2023 Location: MD iTrader: (0)	2018-19 m550 modifications I don't usually see any post talking about mods for the m550i 18-19. wanted to ask everyone for their step-by-step mods to make some power. I know of the down pipes, intakes and e tune and later on turbo upgrade. but I wanted to ask if there's a need to upgrade the fuel pumps? or run better fuel lines? any supporting mod that will be wise to do to help out upgraded turbos. I'm coming from the n54 community with my 535 and there was info on the right way to mod them, I'm just hoping there's info for the m550. thank you!
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08-06-2023, 01:02 PM	#2
mike@x-ph.com Joint Chiefs of Staff 24198 Rep 190,807 Posts Drives: 07-335/12-328/18-M4/21-M4CP Join Date: Sep 2013 Location: Las Vegas iTrader: (23)	The fuel upgrade depends on your map, mods, and the fuel you are using. Unless you are going for extreme power gains, you wont need this upgrade __________________ Check out our current sale by clicking on this link! https://x-ph.com/sale/ Phone number 702-494-9435
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08-07-2023, 07:08 PM	#5
430Scud Second Lieutenant 253 Rep 295 Posts Drives: M550iX,430 Scud,E39 540Msport Join Date: Mar 2020 Location: Seattle, WA iTrader: (0)	A stage 1 tune is the best bang for your buck. You can go from a stock 456hp to 570-590hp depending on tuner you buy from. $650 to $750. Intakes and exhaust have only a mild effect (maybe another 20 to 25hp for a bunch of money...$2k+) Intercooler and turbos are even more $$$, invasive and potentially problematic if not done right by an experienced tuner. If you goal is big numbers, get a 2020 with the larger turbos already. The 2020 on up make big numbers with a stage 1 tune. Amazing in fact.
	Appreciate 0 Quote

09-13-2023, 04:18 PM	#6
bapmax Registered 3 Rep 4 Posts Drives: 2019 BMW M550i Join Date: Mar 2023 Location: PA iTrader: (0)	Great questions OP! Just got my 2019 m550i in April. So far my BM3 stage 1 93 (through X-PH) has been terrific, definitely worth it. @430Scud which tuners can get the 18-19 m550i to 570-590 with just stage 1? I will definitely check them out. OP I think we can also look into the XHP tcu tune for some performance gains but I hear varying reviews on it for our specific cars.
	Appreciate 0 Quote

10-05-2023, 12:06 AM	#7
23109VC Captain 451 Rep 675 Posts Drives: 2016 X5 Join Date: Nov 2018 Location: SoCal iTrader: (0) Garage List 2018 BMW M550i [7.90] 2009 Acura TL SH-AWD [0.00] 2021 Porsche Cayenn ... [10.00]	I have a 2018 M550. Is the power gain with a 91 octane piggyback or flash tune a huge gain or just modest? __________________ Sean 2016 X5 sDrive 35i 2018 M550i
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10-19-2023, 01:19 PM	#10
kosmokratur Second Lieutenant 142 Rep 251 Posts Drives: 2018 M550, '00 750, '97 540,.. Join Date: Aug 2019 Location: Finger Lakes, NY iTrader: (0)	BM3 I have a stock 2018 M550. I've driven a 2018 with BM3 stage 1. The performance difference is dramatic, in my opinion. Not "Ladas into Lambos" but there is no mistaking that the tuned car is way zippier. I just hope the owner doesn't bend a rod lol.
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12-19-2023, 11:23 AM	#11
Zwmack Private First Class 188 Rep 157 Posts Drives: BMW X5 Join Date: Apr 2019 Location: Connecticut iTrader: (0) Garage List 2016 X5 [0.00]	Agreed. I did bootmod3 stage 1, and xhp. No other mods and the car flies! I don't think any of the bolt ons are worth the money for the power when compared to the tune. Just my humble opinion
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12-20-2023, 08:45 AM	#16
oldtexasdog Private First Class 64 Rep 166 Posts Drives: 2020 M550I X Drive Join Date: Dec 2022 Location: NC iTrader: (0)	I did a stage1 93 octane BM3 on my 2020 M550 and it was the best money I have spent. It made the car feel more comfortable to drive with the linear HP boost, like butter smooth, but still slap your moma if you want.
	Appreciate 0 Quote