[FotiosF90M5]

I had DINANs front monoball thrust arm bushings installed today at my dealership ( 3 hr install, cost was $240 under bmw employee pricing ) and it's quite possibly the best mod I've ever done, no exaggeration! It truly makes the steering and suspension feel like a pre-EPS M car. Feels like hydraulic steering now and it's completely transformed the steering feel. I also have the Dinan HAS coil over system dialed in just right and this just completed the whole setup. Exactly what I had hoped for and more.

So I've now driven almost 200 miles already since I simply can't stop driving it so I think I've had enough driving time to post my thoughts.. Mixed driving styles ranging from the "normal civilized BMW driver" to the "highly spirited BMW driver" and lastly the "deranged lunatic a-hole BMW driver" The car is now super direct and immediate, has perfect steering weight and resistance ( seriously..perfect ), and the entire suspension setup feels like one solid piece from the front wheels directly to the steering wheel. No bump steer, no loose and disconnected feeling under heavy braking and turning or uneven crappy roads, and there literally is zero delay to your inputs, just immediate, solid, tactile response you can feel in the palm of your hands when holding and turning the steering wheel.

Another really cool change is how planted and solid the car feels even just driving straight on the highway, there is now zero play in the suspension and the best part is there really is no noticeable degradation in NVH which honestly was very unexpected. It truly is one of THE BEST mods I've ever done period.

In closing if you want the suspension and steering to be as perfect as the M5's drivetrain a really good coil over HAS kit like DINANs and their front monoball thrust arm bushings are simply a must have. I think even just the monoball kit would be a huge upgrade This entire setup IMO makes the already amazingly capable M5 comp to complete driving perfection. To me my M5c is now a super sedan with no peers and any of the very few minor shortfalls the F90 had now perfected it really is the best sports sedan on the planet. So happy now lol.

I've literally been waiting all day to type this little review, I feel like I need everyone to know about this severely, outrageously, underrated F90 upgrade. Trust me, it's not just "good for the track" it's actually perfect for a daily driven or weekend warrior F90 M5 with what I think to be a zero downside upgrade. Soooo, take 2 monoballs in the morning and reply to this thread, Doctors orders. If you value a perfectly precise and balanced handling F90 M5 you will be VERY glad you did
Thanks for reading and sorry for the super long post, I'm just so pleased with the outcome. Seriously though, if possible do these mods, you'll just enjoy the car so much more. Sorry no pics.

Link to Monoball kit F90 :

https://www.dinancars.com/products/s...arts/D280-0019

Link to my previous DINAN H.A.S. Coil-Over review :

DINAN F90 Comp H.A.S. Coilover Suspension Review Simply Awesome Suspension https://f90.bimmerpost.com/forums/sh....php?t=1829934

Link to my DINAN F90 Carbon Fiber CA.I. + F90 Carbon Fiber Turbo Inlet review

My DINAN Turbo Inlet and Full Intake review F90 https://f90.bimmerpost.com/forums/sh....php?t=1863857

[m5 guy]

Did you order the rear arms too? If not you really need to. Been running the monoball/rear am setup for the past two years with my kw v4. Completes the package.

Still waiting on their sway bars. I hear they are supposed to be ready soon...

[SGMM5]

I've had these sitting in my garage waiting to go on the car. Sounds like I need to get my ass in gear and install them. I'm looking to add the rear kit in the future as well.

Also looking forward to sway bars…

[FotiosF90M5]

Originally Posted by m5 guy

Did you order the rear arms too? If not you really need to. Been running the monoball/rear am setup for the past two years with my kw v4. Completes the package.

Still waiting on their sway bars. I hear they are supposed to be ready soon...

So you did the rears even on a competition model? I guess the comp has metal bushings already vs rubber in the non comp but I was told it still would be an upgrade. So it helped a good amount? They are pricey but it seems like the next thing to do. It feels really good now so the same difference in the rear would certainly be nice.

[m5 guy]

Originally Posted by FotiosF90M5

So you did the rears even on a competition model? I guess the comp has metal bushings already vs rubber in the non comp but I was told it still would be an upgrade. So it helped a good amount? They are pricey but it seems like the next thing to do. It feels really good now so the same difference in the rear would certainly be nice.

Yes sir! You get 4 arms with the Dinan and better joints. No additional nvh either just like the monoballs. More control and a better feel.

Btw you might as well get the Dinan exhaust and x-pipe if you have not done so. I think that might be the only Dinan parts you are missing now.

Btw x 2 I keep reading your review on the inlets/intake. Think I'm going to pull the trigger on them. Waiting to see if they do an end of the year sale first as I hear they are backordered.

[FotiosF90M5]

Originally Posted by m5 guy

Yes sir! You get 4 arms with the Dinan and better joints. No additional nvh either just like the monoballs. More control and a better feel.

Btw you might as well get the Dinan exhaust and x-pipe if you have not done so. I think that might be the only Dinan parts you are missing now.

Btw x 2 I keep reading your review on the inlets/intake. Think I'm going to pull the trigger on them. Waiting to see if they do an end of the year sale first as I hear they are backordered.

I love the intake. The X-pipe is definitely coming when it's available but it's been on backorder forever, I had the dinan exhaust for my last 2 cars and really loved them. Great sound, no drone and nice bassy sound. . I'm more interested in getting the last suspension component to make this setup even better based on what your experience is. I'm already blown away by the difference the monoball kit made. So much better.

[Holset]

I ordered the Dinan HAS kit mostly because of your review now i might get this later LOL.

[FSHNGRY]

FotiosF90M5 Probably THE most helpful review on Bimmerpost. It's like you read my mind on what I think is "wrong" with the car. As much as I love my car, and the stance- the total lack of confidence I have when accelerating or braking hard in the F90 in comparison to previous cars is VERY much so an issue for me, and need it fixed!

Curious as to how both Dinan link kit & Ball joint kit pair with KW HAS. I did notice that you are running the Dinan kit. Can anyone comment on their experience with the Dinan pieces and KW's?

Pretty sure i'm going to reach for my "YOLO" card again and just order the damn pieces. I wanted to wait and include the Eisenmann Lower downpipe as well. I looked at the Dinan X - Pipe as well, but with MPE, I don't think I can have this installed without butchering what I have ? MPE is a full system compared to the Dinan Axle back- or am I mislead?

[FotiosF90M5]

Originally Posted by FSHNGRY

FotiosF90M5 Probably THE most helpful review on Bimmerpost. It's like you read my mind on what I think is "wrong" with the car. As much as I love my car, and the stance- the total lack of confidence I have when accelerating or braking hard in the F90 in comparison to previous cars is VERY much so an issue for me, and need it fixed!

Curious as to how both Dinan link kit & Ball joint kit pair with KW HAS. I did notice that you are running the Dinan kit. Can anyone comment on their experience with the Dinan pieces and KW's?

Pretty sure i'm going to reach for my "YOLO" card again and just order the damn pieces. I wanted to wait and include the Eisenmann Lower downpipe as well. I looked at the Dinan X - Pipe as well, but with MPE, I don't think I can have this installed without butchering what I have ? MPE is a full system compared to the Dinan Axle back- or am I mislead?

Thx!! The improvement is dramatic and makes the car so much funner to drive aggressively and sedately as well. It's simply just much better. I think the Dinan HAS focuses a bit more on the performance end but they are very similar so I imagine the outcome would be the same. A dramatic improvement in control.

One thing I have to add is now that I've done the front I feel like I need to do the link set for the rear which also comes with a front link as well. It's expensive but now that the front is so precise and solid it makes me feel like the control is a bit uneven front to rear, not in a bad way but in a way you know it would make a very nice improvement and just need to do it. Like the rear is now missing that ultra direct feel from the seat and steering wheel that the front now has.

The complete suspension set and a really good HAS kit will yield an extremely agile and telepathic M5 comp that I think will out perform even the great M5 CS. Even as mine sits right now it's already there and with the last upgrade it will be simply sublime.

Yeah you'd have to cut the M performance for the Dinan x-pipe. Dinans complete exhaust would be the valved muffler combined with the x-pipe. Their systems sound really good in my experience.

Get the Monoballs and links!!!

[FotiosF90M5]

Originally Posted by Holset

I ordered the Dinan HAS kit mostly because of your review now i might get this later LOL.

I'm glad you did so more people know how good it is, that's why I do these reviews. Obviously from this review you know I highly recommend doing the Monoball Kit and the front and rear link/bushings set. If you could only do one my recommendation would be the front Monoball setup since it gives excellent steering feel on top of more control.

[Holset]

Originally Posted by FotiosF90M5

I'm glad you did so more people know how good it is, that's why I do these reviews. Obviously from this review you know I highly recommend doing the Monoball Kit and the front and rear link/bushings set. If you could only do one my recommendation would be the front Monoball setup since it gives excellent steering feel on top of more control.

Thanks!
Do you think the front monoballs help with tramlining?
My car has been doing that since day one because we have some pretty groved roads around here due to heavy truck traffic.

[FSHNGRY]

Originally Posted by FotiosF90M5

Thx!! The improvement is dramatic and makes the car so much funner to drive aggressively and sedately as well. It's simply just much better. I think the Dinan HAS focuses a bit more on the performance end but they are very similar so I imagine the outcome would be the same. A dramatic improvement in control.

One thing I have to add is now that I've done the front I feel like I need to do the link set for the rear which also comes with a front link as well. It's expensive but now that the front is so precise and solid it makes me feel like the control is a bit uneven front to rear, not in a bad way but in a way you know it would make a very nice improvement and just need to do it. Like the rear is now missing that ultra direct feel from the seat and steering wheel that the front now has.

The complete suspension set and a really good HAS kit will yield an extremely agile and telepathic M5 comp that I think will out perform even the great M5 CS. Even as mine sits right now it's already there and with the last upgrade it will be simply sublime.

Yeah you'd have to cut the M performance for the Dinan x-pipe. Dinans complete exhaust would be the valved muffler combined with the x-pipe. Their systems sound really good in my experience.

Get the Monoballs and links!!!

So that was going to be my next question...

as soon as I typed out my reply to your post last night, I pulled the trigger. In my final act, I have:

Dinan F90 M5 Tension Strut Ball Joint Kit

Dinan F90 M5 Rear Suspension Link Kit

Eisenmann Lower Downpipe

Purchased and awaiting shipment!

I then thought, "Wait: do I need TWO units of the ball joint kit? Or does the suspension link kit solve the dancing/unbalanced issue?

It is SO true, the F90 M5 Comp is fantastic, but it feels like a bodybuilder running at full speed and could get pushed over and fall face first by a little girl. My point with the terribly example there is that as great as it is- the suspension issue serious.

Thank you for the help brother!

[FotiosF90M5]

Originally Posted by FSHNGRY

So that was going to be my next question...

as soon as I typed out my reply to your post last night, I pulled the trigger. In my final act, I have:

Dinan F90 M5 Tension Strut Ball Joint Kit

Dinan F90 M5 Rear Suspension Link Kit

Eisenmann Lower Downpipe

Purchased and awaiting shipment!

I then thought, "Wait: do I need TWO units of the ball joint kit? Or does the suspension link kit solve the dancing/unbalanced issue?

It is SO true, the F90 M5 Comp is fantastic, but it feels like a bodybuilder running at full speed and could get pushed over and fall face first by a little girl. My point with the terribly example there is that as great as it is- the suspension issue serious.

Thank you for the help brother!

Anytime, let me know your thoughts after install please. The thing with the Monoball Kit is it makes the steering and suspension feel so solid and connected. It actually makes it more comfortable driving over bumps because the car is not thrown off at all from deflection. It's hard to describe but it just feels like the connection from the steering wheel to the front wheels is one solid piece. It drives so much better.
Looking forward to hearing your thoughts on it as well.

[FSHNGRY]

Originally Posted by FotiosF90M5

Anytime, let me know your thoughts after install please. The thing with the Monoball Kit is it makes the steering and suspension feel so solid and connected. It actually makes it more comfortable driving over bumps because the car is not thrown off at all from deflection. It's hard to describe but it just feels like the connection from the steering wheel to the front wheels is one solid piece. It drives so much better.
Looking forward to hearing your thoughts on it as well.

Some bad news.. was told today that the Monoball Kit isn't available until Decemeber. The Rear Tension links are in stock and en route. But bummer- i'll have to exercise patience on this one unless anyone can see a pair available in stock?

I'm VERY eager to installing them. Together or separately!

[m5 guy]

Originally Posted by FSHNGRY

Some bad news.. was told today that the Monoball Kit isn't available until Decemeber. The Rear Tension links are in stock and en route. But bummer- i'll have to exercise patience on this one unless anyone can see a pair available in stock?

I'm VERY eager to installing them. Together or separately!

Try check out Carbahn. Steve Dinan's new company. Makes his own versions, basically the same thing since Dinan.

[FSHNGRY]

Well if the OG is making them, i'll take em!

[pbonsalb]

Originally Posted by FSHNGRY

Some bad news.. was told today that the Monoball Kit isn't available until Decemeber. The Rear Tension links are in stock and en route. But bummer- i'll have to exercise patience on this one unless anyone can see a pair available in stock?

I'm VERY eager to installing them. Together or separately!

I ordered the Dinan monoballs kit through get bmw parts last week and it has shipped. Maybe I got the last set. Still thinking about the rear links and HAS kit. Need to decide which to do first. With winter on the way and snow wheels going on soon, handling is not a priority right now. Could be a spring project.

[FotiosF90M5]

Originally Posted by FSHNGRY

Some bad news.. was told today that the Monoball Kit isn't available until Decemeber. The Rear Tension links are in stock and en route. But bummer- i'll have to exercise patience on this one unless anyone can see a pair available in stock?

I'm VERY eager to installing them. Together or separately!

Figures….I'd try a few other vendors , some one is bound to have a set. With the exception of carbahn's the other designs don't seem as good or durable. If you can't find any and you really don't want to wait I'd get the carbahns, essentially the same I'd imagine. I personally like keeping the same companies whenever possible but this is a case of depriving someone of a mod fix. No Bueno….

[Jambo1]

Originally Posted by FotiosF90M5

I had DINANs front monoball thrust arm bushings installed today at my dealership ( 3 hr install, cost was $240 under bmw employee pricing ) and it's quite possibly the best mod I've ever done, no exaggeration! It truly makes the steering and suspension feel like a pre-EPS M car. Feels like hydraulic steering now and it's completely transformed the steering feel. I also have the Dinan HAS coil over system dialed in just right and this just completed the whole setup. Exactly what I had hoped for and more.

Thank you for this excellent review. You mentioned not experiencing that much degradation in NVH, but overall did you experience a transfer of a lot more road noise into the cabin? I’d love to do this upgrade, but anxious about a general increase of actual noise into the cabin.

Thanks.

[FSHNGRY]

I can confirm that everything FotiosF90M5 is saying is true.

Completely different car, epic ride. Thanks for the words and write up on this. You and m5 guy made me do it.

[Jimmy K]

My car has been under the knife for the past two days, getting Dinan/Carbahn bits installed. I went with the Cold air intake, HAS kit, Rear toe links, front monoballs.

The turbo inlets are on back order, which is a bummer. But that gives me time to get used to these mods as I consider going down the exhaust/xpipe/tune rabbit hole.

I'm picking her up in the morning and hope I feel exactly the same as you gents. I'm excited!!

[Tristan0111]

Originally Posted by FotiosF90M5

I had DINANs front monoball thrust arm bushings installed today at my dealership ( 3 hr install, cost was $240 under bmw employee pricing ) and it's quite possibly the best mod I've ever done, no exaggeration! It truly makes the steering and suspension feel like a pre-EPS M car. Feels like hydraulic steering now and it's completely transformed the steering feel. I also have the Dinan HAS coil over system dialed in just right and this just completed the whole setup. Exactly what I had hoped for and more.

So I've now driven almost 200 miles already since I simply can't stop driving it so I think I've had enough driving time to post my thoughts.. Mixed driving styles ranging from the "normal civilized BMW driver" to the "highly spirited BMW driver" and lastly the "deranged lunatic a-hole BMW driver" The car is now super direct and immediate, has perfect steering weight and resistance ( seriously..perfect ), and the entire suspension setup feels like one solid piece from the front wheels directly to the steering wheel. No bump steer, no loose and disconnected feeling under heavy braking and turning or uneven crappy roads, and there literally is zero delay to your inputs, just immediate, solid, tactile response you can feel in the palm of your hands when holding and turning the steering wheel.

Another really cool change is how planted and solid the car feels even just driving straight on the highway, there is now zero play in the suspension and the best part is there really is no noticeable degradation in NVH which honestly was very unexpected. It truly is one of THE BEST mods I've ever done period.

In closing if you want the suspension and steering to be as perfect as the M5's drivetrain a really good coil over HAS kit like DINANs and their front monoball thrust arm bushings are simply a must have. I think even just the monoball kit would be a huge upgrade This entire setup IMO makes the already amazingly capable M5 comp to complete driving perfection. To me my M5c is now a super sedan with no peers and any of the very few minor shortfalls the F90 had now perfected it really is the best sports sedan on the planet. So happy now lol.

I've literally been waiting all day to type this little review, I feel like I need everyone to know about this severely, outrageously, underrated F90 upgrade. Trust me, it's not just "good for the track" it's actually perfect for a daily driven or weekend warrior F90 M5 with what I think to be a zero downside upgrade. Soooo, take 2 monoballs in the morning and reply to this thread, Doctors orders. If you value a perfectly precise and balanced handling F90 M5 you will be VERY glad you did
Thanks for reading and sorry for the super long post, I'm just so pleased with the outcome. Seriously though, if possible do these mods, you'll just enjoy the car so much more. Sorry no pics.

Link to Monoball kit F90 :

https://www.dinancars.com/products/s...arts/D280-0019

Link to my previous DINAN H.A.S. Coil-Over review :

DINAN F90 Comp H.A.S. Coilover Suspension Review Simply Awesome Suspension https://f90.bimmerpost.com/forums/sh....php?t=1829934

Link to my DINAN F90 Carbon Fiber CA.I. + F90 Carbon Fiber Turbo Inlet review

My DINAN Turbo Inlet and Full Intake review F90 https://f90.bimmerpost.com/forums/sh....php?t=1863857

Thanks for this detailed and passionate review, really something I need right now, as almost a complete newbie in this, I bought my first performance car which is the F90 2021 LCI base, the Comp is not available in my country due to emission regulation, maybe noise too... Not to mention the mega M5CS, impossible at all...

So far I did KW HAS, M5CS bonnet, HJS downpipes, MPE titanium exhaust, BBS RID, and of course all the necessary CF stuff, various brands like Sterckenn, Autotechnik, RW, and OEM. Dinan is not established here, so no references for me nearby. I've been struggling if I should pull the trigger on the Dinan mono balls and rear links. After reading this thread I think I'm gonna do it. We even have the same gray!

Regarding the intake, I've changed the filter, as a lot of people said that it's the most cost-effective thing compared to the whole intake system. The local shop that does all the mods for me basically said a similar thing, that the whole CF intake system is just more nice looking and makes sounds that some people like. Is replacing the turbo inlets alone more cost-effective/substantial to the outcome?

I've been watching videos and articles about the M5CS, since all the people are speaking super highly of it, I'm thinking there must be a bunch of people like me trying to mod "toward" the M5CS, obviously with some level of compromise and alternatives. So I've been thinking about anti-roll bars, front negative camber, different engine mounts/torque, other than the stuff I've done already including the mono balls and links I'm buying. I emailed Dinan last month and they said they were not sure about developing anti-roll bars for my generation. I saw somebody in this thread mentioned them, but I suppose he was referring to the non-LCI? The BMW dealer told me that my car requires a set of arms in order to adjust the camber.

Anyway, just hope to get some insights as not many people here are this serious like you guys, and I'm quite alone, could only see what's on the internet that is public.

Thanks!