[Alscoob]

Originally Posted by Junebug85

BimmerLink App can open the flap for you, then remove fuse 203 (I think, from memory) to keep it open all the time.

Ah yeah the cabin is much more insulated on the 5. You have the OPF on your exhaust too which doesn't help with loudness. Saying that mine was pre-opf and still sounded quiet. Opening the flap is a good starting point though.

Many plans for the car? Any pics?

Early days but coming from my last set up, which was really good, - springs /spacers/ full geo set up /non run flats / bit more rumble from the rear / change or paint rear diffuser, dislike the grey!

I always like to be a bit understated and sort the handling and brakes first, then think about other bits.

I need to get some pics over the weekend and will post some up in a new thread.

[urovico]

Beautiful this model, I envy. Maybe someday I will be able to do something similar.

[CarbonShwarz]

How are you finding the Remus day to day with the valves closed? I'm looking to fit one soon but a little worried about loudness over stock in comfort, I've already got a sports cat and deleted cold start.

[Junebug85]

Originally Posted by CarbonShwarz

How are you finding the Remus day to day with the valves closed? I'm looking to fit one soon but a little worried about loudness over stock in comfort, I've already got a sports cat and deleted cold start.

It's fine day to day, I have the valve open all the time. There's a slight drone around 1800 to 2000 rpm but only really noticible at motorway speeds.
The GTS startup roar is nice, but only sounds good once the car is warmed up (so the second startup is better than the first cold start)
In comfort, it's not as loud as sport mode and I have it set to no burbles. Sport Plus is when it really wakes up and sounds quite good

[Junebug85]

Fitting F90 M5 Braces / Reinforcements

This all stemmed me having to replace the rear flex disc on the car. While looking at what the job would entail, I read that some of the G30 under body panels and bracing would need to come off. Having a look on here and online, a few have fitted the F90 braces and rear reinforcements as an upgrade and feedback has been positive.

F90 Cross Member - 33318064485
F90 Cross Strut/X Brace - 33318064893
F90 Strut Brace Front, Bulkhead - 51618075677
Bolts for cross member (8) - 07119907857
Bolts for cross strut (2) - 33308071664
Nuts for cross strut (2) - 33308073595
Underbody Panel Left - 51758060095
Underbody Panel Right - 51758060096

Flex Disc - 26117610061
Hex Bolts (3) - 326117527475
Hex Nuts (3) - 37106789678
Torx Screws (3) - 26118607971

I will see how the car performs after fitting these and see what difference I can feel. The next step would be to fit the front and rear F90 ARB's as they are bigger than the G30 ones. This should (in theory and with the other parts) aid in making the car more stiffer and sharper as well as increasing rigidity.

I think the combination of the MSS Height Adjustable Spring Kit, F90 front and rear reinforcements and the F90 ARB's should improve things. There are a whole host of other suspension components that can be changed out but I don't think I'm there yet... let's see how this goes.

I'll post some pictures of the parts and then of the installation soon.

[Junebug85]

Parts Update

The front and rear F90 M5 Comp antiroll bars/sway bars got delivered today. Ended up getting new screws/bolts too as it's recommended they are renewed as they are torqued to 100nm.

I was able to get them from a main dealer with really good discount. I also bought new F90 front end links and new G30 rear end links from AutoDoc.

Looking forward to having all the parts fitted in the coming weeks.

Total parts list for those interested:

F90 Comp Front Sway Bar - 31358074129
F90 Comp Rear Sway Bar - 33558074131
F90 Front End Links - 31308091462
G30 Rear End Links - 33506861482
F90 Cross Member - 33318064485
F90 Cross Strut/X Brace - 33318064893
F90 Strut Brace Front, Bulkhead - 51618075677
Bolts for cross member (8) - 07119907857
Bolts for cross strut (2) - 33308071664
Nuts for cross strut (2) - 33308073595
Underbody Panel Left - 51758060095
Underbody Panel Right - 51758060096

Flex Disc - 26117610061
Hex Bolts (3) - 326117527475
Hex Nuts (3) - 37106789678
Torx Screws (3) - 26118607971

[320iVan]

wow, i like your way. I look forward to feedback on the result of the work done.

[Alscoob]

That's a lot of kit there, how's the install going?

[Junebug85]

Originally Posted by Alscoob

That's a lot of kit there, how's the install going?

I've not got round to getting any of it on yet... just waiting on 1 more part which should be here in the next 2 weeks.

The front bulkhead brace I can do myself but the rest will need to be done on a lift with another pair of hands

[Alscoob]

Originally Posted by Junebug85

I've not got round to getting any of it on yet... just waiting on 1 more part which should be here in the next 2 weeks.

The front bulkhead brace I can do myself but the rest will need to be done on a lift with another pair of hands

I bet, bit of a tricky job to do on your drive ! Looking forward hearing about the results.

I'm in the process of gathering some goodies for mine, nowhere near your project depth, but looking forward to some 'percevied improvements' soon.

[Junebug85]

Originally Posted by Alscoob

I bet, bit of a tricky job to do on your drive ! Looking forward hearing about the results.

I'm in the process of gathering some goodies for mine, nowhere near your project depth, but looking forward to some 'percevied improvements' soon.

Yeah especially as the full exhaust needs sto be removed to get to the flex disc.

Ah nice, what have you got planned? Look forward to hearing and seeing what you do

[Alscoob]

Originally Posted by Junebug85

Yeah especially as the full exhaust needs sto be removed to get to the flex disc.

Ah nice, what have you got planned? Look forward to hearing and seeing what you do

I don't want to crowd your build post so I'll be brief and I'll start my own once I get going.

Not too much, want it to still look standard but with some subtle changes.

So far I've opened the exhaust flap permanently (not much different) and removed the rear badges replacing the 540i in black.

Next up I have the ACS springs and rear sensor adjusters for the self level. I'll see how that looks and handles but then maybe some 12 / 15 spacers. I'm going to see if the RF tyres are anywhere near better with the springs, think I know the answer, but I like to do things in stages.

I dislike the grey rear bumper diffuser might have it painted to match the car and the lower centre in black to save buying the M Sport version. Doubt that would be too successful as the lower centre doesn't have any real defined lines to mask to.

I do fancy some more exhaust sound so will research some stuff and a M550i diffuser I guess unless the M sport works.

I have the aero wheels and while they are nice I can't help feeling that they would look better without the plastic bits, so we'll see, it's on the list to try. OR maybe some nice 668 / 669's or even 728m's would be nice to see the calipers, just seem hidden away at the mo.

So apart from new front discs and some HP2000 pads that's about it really, but no doubt I'll find someting else in due course.

[Junebug85]

Originally Posted by Alscoob

I don't want to crowd your build post so I'll be brief and I'll start my own once I get going.

Not too much, want it to still look standard but with some subtle changes.

So far I've opened the exhaust flap permanently (not much different) and removed the rear badges replacing the 540i in black.

Next up I have the ACS springs and rear sensor adjusters for the self level. I'll see how that looks and handles but then maybe some 12 / 15 spacers. I'm going to see if the RF tyres are anywhere near better with the springs, think I know the answer, but I like to do things in stages.

I dislike the grey rear bumper diffuser might have it painted to match the car and the lower centre in black to save buying the M Sport version. Doubt that would be too successful as the lower centre doesn't have any real defined lines to mask to.

I do fancy some more exhaust sound so will research some stuff and a M550i diffuser I guess unless the M sport works.

I have the aero wheels and while they are nice I can't help feeling that they would look better without the plastic bits, so we'll see, it's on the list to try. OR maybe some nice 668 / 669's or even 728m's would be nice to see the calipers, just seem hidden away at the mo.

So apart from new front discs and some HP2000 pads that's about it really, but no doubt I'll find someting else in due course.

Ah nice, good few changes done and you've got some good ones planned too! Xdrive BMWs tend to sit that little higher so they definitely need that drop!

The good thing with the 550i diffuser is if you go down the route of an aftermarket exhaust, the tips will fit and align up properly 👍🏼. It's the one Remus and other companies recommend anyway. I've seen that the LCI 550i diffuser is a little bit different to the one I have.... but not sure it's too different for me to change it. I do like that the centre bit now has some fins built in, adding a little aggression.

Ah yes, I'm sure you'll think and find something else to do

[Junebug85]

Update: just waiting on 1 more piece of the 'while I'm upgrading' puzzle then I can get the car booked in for these suspension enhancements/upgrades.

More parts (unwanted but it is what it is):
I noticed that I have a dent in my driver side rear Camber Control Arm/Link. I think it was when I drove over a large rock that was unavoidable in the middle of the road (it did make quite a large noise which would explain it)... any how - £372 later, I now have more parts to fit along with new nuts and bolts. The rock also damaged the cover underneath. It kind if did its job as the damage was minimal to a degree.

The car will also need to have alignment done after fitting this new arm. A chance to maybe get it dialled in for a fast road setup.

I'm only doing the one side as the part in question doesn't have any bushings on it and is just all one piece with no moveable parts on it.

[Dasky_spas]

What do you suspect broke the flex plate? I got lured in as I'm going to add the rear brace setup to my 850 and also saw the rear flex plate destroyed, with only 25k miles.

[Junebug85]

Originally Posted by Dasky_spas

What do you suspect broke the flex plate? I got lured in as I'm going to add the rear brace setup to my 850 and also saw the rear flex plate destroyed, with only 25k miles.

I'm not sure to be honest, but it was picked up in the yearly inspection that it's damaged a little. I've recently seen/heard more cases of people saying they are replacing the flex discs. Mine has double the mileage of your car, so I guess they can go at any age/mileage.

[Dasky_spas]

Originally Posted by Junebug85

I'm not sure to be honest, but it was picked up in the yearly inspection that it's damaged a little. I've recently seen/heard more cases of people saying they are replacing the flex discs. Mine has double the mileage of your car, so I guess they can go at any age/mileage.

Ya for my application, the listed M8 flex plate says it doesn't fit so I'm sure it's the same part for the f90. Wonder what the differences are. I can't help but think flex in the rear chasis contributes to the issue.

[tjbuggy2b]

Loving this build!

[Junebug85]

Originally Posted by tjbuggy2b

Loving this build!

Thank you

[Junebug85]

Originally Posted by Dasky_spas

Ya for my application, the listed M8 flex plate says it doesn't fit so I'm sure it's the same part for the f90. Wonder what the differences are. I can't help but think flex in the rear chasis contributes to the issue.

I think you could be right, I know on mine the rear subframe and other bits are on bushings etc where as the front of the car is already more stiff than the rear - so that could potentially be a factor. It may be the same for the M5 and M8

[Junebug85]

* NOW SOLD *

(I will remove from this thread if not allowed)

* UK ONLY *

For Sale - A set of 4 x Genuine BMW 20" 759i Alloys, finished in Satin Bronze with Goodyear Asymmetric 3 Run Flat Tyres

Wheels were powder-coated in Satin Bronze, in Oct 2022. These were originally in Orbit Grey with a diamond-cut face.

Alloys are in very good condition, with a few age-related marks in the wheel barrels.

Fitment: G30 & G31 cars

Front Alloys -
20 x 8
ET30
PCD: 5x112
Part Number: 36118053501

Rear Alloys -
20 x 9
ET44
PCD: 5x112
Part Number: 36118053502

Front Tyres -
245/35/20 95Y
Goodyear Eagle F1 Asymmetric 3 RFT
Star Marked MOE
Tread: 5.5mm & 6mm

Rear Tyres -
275/30/20 97Y
Goodyear Eagle F1 Asymmetric 3 RFT
Star Marked MOE
Tread: 6mm & 6mm

Tyre DOT: 4219, 0420, 2220, 2220

TPMS Sensors fitted to all 4 wheels

Genuine BMW Centre Caps Included (Part Number: 36136850834)

All balanced and ready to be fitted to a car

*One of the rear tyres has a puncture repair in it* - it causes no issues and I have been using/driving on it between October 2022 and April 2023.

I only used to use this set of wheels in the rainy/winter months to keep the wear and protect my other set of wheels. Looking to switch to a set of 19", hence the sale.

I would recommend a set of 15mm spacers front and rear with these wheels if you wanted a flush fitment (obviously optional and down to personal preference).

Plenty of photos of the wheels on my car, on my Instagram (@project540ix), or just search in this group.

£850.00
(Collection only, happy to meet you near the M1 - J20 or J21)

[Junebug85]

Front Upper F90 Bulkhead Strut Brace fitted... (first of the F90 Braces/Reinforcement parts fitted today)

This was a straight fitment swap with the G30 one... you do need to remove a few bits first though... side trim covers, wiper arms (using the correct tool) and then trim piece under the windscreen - this then gives you access to all the bolts for the brace.

The F90 one is made from thick aluminium and is very robust and strong - looks like it's laser cut or with water jets maybe? The G30 one is made from a stamped and folded aluminium sheet - which is a little on the thin side (looks flimsy compared to the F90 one &#128516.

I'm not expecting a massive difference with just this piece, but once the other bits are on, they should all contribute to a more sharper driving feel and an improvement in handling.

I still have a few underbody braces and reinforcement parts left to fit, including front and rear F90 anti roll bars... Just waiting on one more part which has been on back order for a while - getting annoying now as it's holding things up.