[Jimjamz]

Originally Posted by Davil

Is it this?

https://ind-distribution.com/product...-arch-trim-set

Looks right.

$412 for a part set some are binning on delivery

[jdl8r]

Finally found the time (and a great suspension person) to do the HAS install for my CS. I opted for the BMW version over the KW (nearly identical system) as I read the spring rates were a bit softer for the BMW kit. Verdict after about 300 miles... Great.

The short version: Outside of looking just a touch lower, it rides and handles almost exactly the same. I played with all the settings, comfort/sport/sport+ steering and coilovers.

Longer version: the suspension is both softer and stiffer at the same time. The dual coils, do their job perfectly and smooth out road imperfections, while offer stiffer handling when pushing the car. If you're considering it, you'll probably want to pick up some camber plates as there isn't any adjustment at all and the car needs it. Mine are already on order. With the corner balance, you can see the car is a bit on the heavy side. Those Iron rotors and adjustable dampers do come at a cost. Anyone wanna sell me their carbon ceramics on a trade? I didn't lower my car too much, just to keep the front splitter from getting torn up on the pot holes here in socal. 1.5 fingers width in front above the wheel, 2 fingers width in the rear.

Worth the money and time.

Knowing how smooth the ride is, I'd totally consider the KW's and saving $600.

[michaeldorian]

Originally Posted by jdl8r

Finally found the time (and a great suspension person) to do the HAS install for my CS. I opted for the BMW version over the KW (nearly identical system) as I read the spring rates were a bit softer for the BMW kit. Verdict after about 300 miles... Great.

The short version: Outside of looking just a touch lower, it rides and handles almost exactly the same. I played with all the settings, comfort/sport/sport+ steering and coilovers.

Longer version: the suspension is both softer and stiffer at the same time. The dual coils, do their job perfectly and smooth out road imperfections, while offer stiffer handling when pushing the car. If you're considering it, you'll probably want to pick up some camber plates as there isn't any adjustment at all and the car needs it. Mine are already on order. With the corner balance, you can see the car is a bit on the heavy side. Those Iron rotors and adjustable dampers do come at a cost. Anyone wanna sell me their carbon ceramics on a trade? I didn't lower my car too much, just to keep the front splitter from getting torn up on the pot holes here in socal. 1.5 fingers width in front above the wheel, 2 fingers width in the rear.

Worth the money and time.

Knowing how smooth the ride is, I'd totally consider the KW's and saving $600.

Awesome. Thank you so much for the write up. Looking for a good suspension person in SoCal too. You mind referring? If not here, send me a PM. Thanks!

[michaeldorian]

Popping this back up. Anyone try anything other brands? Anyone else have any other M2 CS setups?

[medphysdave]

Originally Posted by jdl8r

Finally found the time (and a great suspension person) to do the HAS install for my CS. I opted for the BMW version over the KW (nearly identical system) as I read the spring rates were a bit softer for the BMW kit. Verdict after about 300 miles... Great.

The short version: Outside of looking just a touch lower, it rides and handles almost exactly the same. I played with all the settings, comfort/sport/sport+ steering and coilovers.

Longer version: the suspension is both softer and stiffer at the same time. The dual coils, do their job perfectly and smooth out road imperfections, while offer stiffer handling when pushing the car. If you're considering it, you'll probably want to pick up some camber plates as there isn't any adjustment at all and the car needs it. Mine are already on order. With the corner balance, you can see the car is a bit on the heavy side. Those Iron rotors and adjustable dampers do come at a cost. Anyone wanna sell me their carbon ceramics on a trade? I didn't lower my car too much, just to keep the front splitter from getting torn up on the pot holes here in socal. 1.5 fingers width in front above the wheel, 2 fingers width in the rear.

Worth the money and time.

Knowing how smooth the ride is, I'd totally consider the KW's and saving $600.

You aren't kidding about the weight of the rotors. 30lbs doesn't really sound like a lot until you pick one up. I had two show up in the same box. I felt sorry for the DHL driver. And myself after i took the package from him. Some days I regret not speccing the CCB. I didn't want the replacement cost. However, I think they can be tracked with the right cooling mods and be cost compatible with iron rotors.

[Reddevils7]

Anyone have experience with switching the monoballs in the front lower control arms? I'm really interested in that and possibly in the future doing evolve Bilstein b6 dampers with mss springs

[medphysdave]

Originally Posted by Reddevils7

Anyone have experience with switching the monoballs in the front lower control arms? I'm really interested in that and possibly in the future doing evolve Bilstein b6 dampers with mss springs

I think the lower already has mono balls.

[Reddevils7]

Originally Posted by medphysdave

I think the lower already has mono balls.

Yeah it has rubber ones lol I should've clarified. Meant replacing the original rubber bushings with aluminum ones such as dinan, Turner, etc

https://www.dinancars.com/products/s...arts/D280-0030

[medphysdave]

I see now. I am adding solid to my front tension arms and adding adjustable front lower arms. The solid bushings on the tension arms are supposed to really minimize the front end squirm under hard breaking. I experience it on track and don't like it.

[Reddevils7]

Originally Posted by medphysdave

I see now. I am adding solid to my front tension arms and adding adjustable front lower arms. The solid bushings on the tension arms are supposed to really minimize the front end squirm under hard breaking. I experience it on track and don't like it.

Yes that's exactly what I'm trying to fix too the squirm on hard braking. And I think it's supposed to help a little with steering deflection on hard uneven bumps and surfaces too

[ashmostro]

If anyone is interested in the TracTive DDC coilover setup that integrates directly into factory EDC plug and play, I'm happy to answer any questions you may have. I've been running this system for a season, and now that I'm selling my M2cs for an M4cs i will be moving the kit over to that car.

[medphysdave]

Originally Posted by ashmostro

If anyone is interested in the TracTive DDC coilover setup that integrates directly into factory EDC plug and play, I'm happy to answer any questions you may have. I've been running this system for a season, and now that I'm selling my M2cs for an M4cs i will be moving the kit over to that car.

Consensus seems to be that you have to give up EDC for a set of coilovers to run quick consistent lap times. I refuse to give up EDC as I believe it's possible to create a capable EDC solution. And survey says....

[ashmostro]

Originally Posted by medphysdave

Consensus seems to be that you have to give up EDC for a set of coilovers to run quick consistent lap times. I refuse to give up EDC as I believe it's possible to create a capable EDC solution. And survey says....

;-)

[medphysdave]

Damn, what tires are you running? Are you using the tractive controller or factory suspension logic? Would you mind sharing your spring rates? Tractive is on my list as a suspension solution. How are the road manners with your setup? I DD mine and take a few 3-4hr trips. I don't mind a firm suspension, but hoping EDC comfort takes a bit of the edge off.

[ashmostro]

Originally Posted by Reddevils7

Yes that's exactly what I'm trying to fix too the squirm on hard braking. And I think it's supposed to help a little with steering deflection on hard uneven bumps and surfaces too

Btw I'm running spl everything. All the arms and bushings. Huuuuuge difference, and no less comfortable than stock rubber in my experience.

[ashmostro]

Originally Posted by medphysdave

Damn, what tires are you running? Are you using the tractive controller or factory suspension logic? Would you mind sharing your spring rates? Tractive is on my list as a suspension solution. How are the road manners with your setup? I DD mine and take a few 3-4hr trips. I don't mind a firm suspension, but hoping EDC comfort takes a bit of the edge off.

Falken rt660s. More of a qualifier tire than an endurance one. My first lap is always my fastest.

Using the factory edc controller.

Don't know the spring rates as I bought the touring kit.

Road manners are interesting. Stiffer than stock while also more compliant over hard ruts.
I think the spring rates are better tuned for the longer wheelbase f80/2 chassis, as I have some front to rear pogoing sometimes.

Difference between comfort and sport plus seems less than OEM.