M550i

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Discussion

Boosted_8

Original Poster:

98 posts

37 months

Wednesday 23rd February 2022
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Test fit of the new wheels and tyres today. So far so good. Car was horrible after all the storms, so I quickly waved the jet wash over it before taking a snap


Boosted_8

Original Poster:

98 posts

37 months

Sunday 27th February 2022
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Lots of fun at the drag strip today. She's movin'.

Boosted_8

Original Poster:

98 posts

37 months

Saturday 5th March 2022
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Managed to find a full set of F90 roll bars for cheap. Will fit these with the camber arms when the car goes in for custom geo in two weeks time. Rear will go straight on the front will likely need adjustable drop links.



Really happy with the way the car looks, sounds and moves now. Only other area I would consider upgrading is the brakes, the 395mm M performance kit is the likely choice.

Boosted_8

Original Poster:

98 posts

37 months

Thursday 21st April 2022
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F90 roll bars on, Geo setup with some actual camber. Corners much flatter and no more understeer on entry.



Edited by Boosted_8 on Tuesday 19th July 16:37

Boosted_8

Original Poster:

98 posts

37 months

Monday 20th June 2022
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Big brake kit arrived. Struggling to find available workshops to fit them so it might be a while before they are on. Also have to solve a clicking sound coming from the front wheels at full lock and under load first. In the mean time heres a comparison for scale next to an Olympic plate!

Boosted_8

Original Poster:

98 posts

37 months

Thursday 14th July 2022
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Managed to get a slot for the M brakes at the dealer. Labour rate is eye watering but the ABS needs coding for warranty and insurance etc so its a pill I need to swallow. Then I feel im pretty much complete on my journey to create the love child of an Alpina B5 and M5 CS... Well maybe just some gearbox software from XHP once they support all the 3rd generation TCU's...

Edited by Boosted_8 on Thursday 14th July 22:26

simonwhite2000

2,473 posts

97 months

Saturday 16th July 2022
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Lovely! Enjoying this thread. How much change did your exhaust mod make?

Boosted_8

Original Poster:

98 posts

37 months

Monday 18th July 2022
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simonwhite2000 said:
Lovely! Enjoying this thread. How much change did your exhaust mod make?
Thanks mate!

It made it authentic V8 sounding in my view. The X pipe smooths out rasp as well which is a bonus.



Boosted_8

Original Poster:

98 posts

37 months

Monday 18th July 2022
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I think the size of the brakes just looks correct now. More so at the rear, where they are much bigger than stock. It's the same spec system Alpina fit to their B5 with the 621bhp N63 upgrades.

First driving impressions after bedding in are they have more bite when hot which doesn't fade off.
The dimpled rotors are noisier & kick up way more dust but that's why matte grey wheels are a thing right haha.

The recode has changed the ABS and the hazards don't kick in unless you are emergency stopping now which is really useful!




Boosted_8

Original Poster:

98 posts

37 months

Tuesday 19th July 2022
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Some sunshine glamour shots:






simonwhite2000

2,473 posts

97 months

Monday 15th May 2023
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Any more updates on life with the 550i?

Boosted_8

Original Poster:

98 posts

37 months

Tuesday 11th July 2023
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I'm slowly returning back to stock with a view to sell while in pos eq. I don't need such a big car anymore since up sizing the wife's. I would quite like a new RS3 but you cannot order them still. The market is full of over priced ones less than a year old. Seems quite dumb as there's more than 155 on autotrader sat there!

rGtom

13 posts

157 months

Wednesday 12th July 2023
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Do you still go on g30 forums? I messaged you a few weeks ago to see if you'd be interested in swapping the wheels before you sell, for the other m550i wheels that were supplied on my auc m550i a few weeks ago...





Edited by rGtom on Wednesday 12th July 13:12

Boosted_8

Original Poster:

98 posts

37 months

Wednesday 12th July 2023
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Sadly the one thing that's not for sale as 668M are the 550i unique / specific wheel. I do however have an exhaust X-pipe and Adjustable camber arms in the garage I need to get around to listing on ebay If you are interested?

rGtom

13 posts

157 months

Wednesday 12th July 2023
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The 846m were also a factory option for the m550i (mine had them from the factory and even until a month ago they showed as an option on the BMW configurator), so it would still be "factory" correct for an m550! Wouldn't affect being able to sell it I don't think.

I'm ok the other mods though, thank you.

simonwhite2000

2,473 posts

97 months

Thursday 13th July 2023
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Boosted_8 said:


I'm slowly returning back to stock with a view to sell while in pos eq. I don't need such a big car anymore since up sizing the wife's. I would quite like a new RS3 but you cannot order them still. The market is full of over priced ones less than a year old. Seems quite dumb as there's more than 155 on autotrader sat there!
My dad is still considering a 550i - currently in a pre-facelift 540i. Even though you are going to sell would you rate the car highly? Whats the mpg been like?

rGtom

13 posts

157 months

Thursday 13th July 2023
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I've come from a b58 engined 440i to my lci m550i, and it's an absolutely huge upgrade. The b58 is a lovely engine but the v8 is special.

Fuel economy is not amazing, on journeys where I'd get 29-30mpg in the 440i I'm getting 23 in the m550, and best I've seen so far is 27mpg on a 100 mile round trip. it seems to need longer to warm up and get better economy, short trips (ie 10 20 miles) it struggles to get into the 20s even driving sedately, if you use the power at all it drops off very quickly!

The car has averaged 17.5mpg from the factory according to the idrive.

The b58 has got a better power:economy balance, for sure, but it's the s63 is an absolutely amazing engine.

Whilst obviously going from an f36 4 series to this is different to going pre-lci g30 to this, some of the upgrades are the same - specifically idrive 7 Vs idrive 6, and that is a huge upgrade.

If he can stomach using a third more fuel it's a big upgrade in my opinion!

rGtom

13 posts

157 months

Friday 14th July 2023
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Boosted_8 said:
I think the size of the brakes just looks correct now. More so at the rear, where they are much bigger than stock. It's the same spec system Alpina fit to their B5 with the 621bhp N63 upgrades.

First driving impressions after bedding in are they have more bite when hot which doesn't fade off.
The dimpled rotors are noisier & kick up way more dust but that's why matte grey wheels are a thing right haha.

The recode has changed the ABS and the hazards don't kick in unless you are emergency stopping now which is really useful!



Can you let me know what the BBK ended up costing all in? Are you leaving that on the car?

Boosted_8

Original Poster:

98 posts

37 months

Saturday 15th July 2023
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£3.5k all in for the brakes and rip off dealer fitting and coding cost. I will be removing them for sale at some point soon via an independent. I've only heard of a hand full of people running these OEM upgrades in the UK so they are rarely up for grabs second hand.

Boosted_8

Original Poster:

98 posts

37 months

Friday 6th October 2023
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Looks like I massively jumped the gun on expecting to be able to order an RS3 this year. I would be happy with nearly new as there's loads on auto trader, however they are mostly over list price still!