[Reesnat]

Originally Posted by VIERsr

https://rparts-sites.s3.amazonaws.co...INST_INSTR.pdf

Thank you, much appreciated!

[shehatezme]

Originally Posted by Reesnat

How are you liking it so far? Did you have the stock setup prior to this?

Never had stock setup before this. Had it ordered and installed at port. Car is a tiny bit stiff at times but overall compliant. My other car running KW v3 and this rides way better!

[M2 SoCal]

Originally Posted by spademonkey

I have the M Sports Suspension on mine and it is very comfortable, and definitely very good handling for a stock, out of the box package of a car. Was worth the few extra weeks waiting for it at port to get that installed.

Is yours 10mm drop? I heard port installs are 10 by default.

[M2 SoCal]

Originally Posted by ledgy

Settled nicely. Still only have 1000 kms

How do you find the ride quality vs stock? Is this a 10mm drop?

[spademonkey]

Originally Posted by Autobahn SoCal

Is yours 10mm drop? I heard port installs are 10 by default.

Yes. Was plenty low for me, especially since with the carbon lip I do scrape occasionally

[M2 SoCal]

Originally Posted by spademonkey

Yes. Was plenty low for me, especially since with the carbon lip I do scrape occasionally

Great thanks. Do you find the ride quality is the same as stock given it’s not past 10mm or is it more stiff? I heard once you go past 10mm it gets more stif due to less spring travel.

[spademonkey]

Originally Posted by Autobahn SoCal

Great thanks. Do you find the ride quality is the same as stock given it’s not past 10mm or is it more stiff? I heard once you go past 10mm it gets more stif due to less spring travel.

Honestly at 10mm it’s the same as stock if not even more comfortable

[M2 SoCal]

Originally Posted by spademonkey

Honestly at 10mm it’s the same as stock if not even more comfortable

I’m having this installed next week by BMW to keep warranty. I heard some people saying they may need to adjust the headlights since it’s lowered, but that kinda doesn’t make sense to me. Have you heard anything like that?

[BradMX5]

Originally Posted by Autobahn SoCal

I’m having this installed next week by BMW to keep warranty. I heard some people saying they may need to adjust the headlights since it’s lowered, but that kinda doesn’t make sense to me. Have you heard anything like that?

For my Miata I purchased a dongle that plugs into the OBDII that initializes the auto leveling headlights.

When you lower the car (at least in the Miata) it messes up the auto leveling headlights and would aim them really high up and this would fix it.

[spademonkey]

The headlights are auto leveling and have been for yearssss. You’re fine

[slipinslidin]

Originally Posted by Tag

Yup, I was just putting this together to help people understand what a HAS kit does.

In this illustration I'm using the front struts. The rear uses shocks but the principal is the same. The HAS kit lowers the car in a couple of ways. The spring perch is replaced with an adjustable one that sits lower on the OEM strut. The replacement springs that come with the kit are also shorter. To make up for slightly shorter springs any quality HAS kit will also come with shorter bump stops. If you've ever heard of people saying their ride sucks and they are always riding on their bump stops that's what they mean. There isn't enough compression range, and they are always on the bump stops. Think of bump stops as just another spring, 'riding it' increases the spring rate which results in a stiffer ride. That's why you always hear me preaching that getting a 'quality' HAS kit that comes with shorter ones is a must.

***There are always caveats when modding. Because the HAS kit is adjustable, meaning the spring perch lets you raise and lower the car you can go lower than the recommended setup. The M Performance HAS kit lowering range is 5-20mm when compared to stock. BMW recommends 10mm, but at some point past 10mm you will have less compression than the stock suspension before you hit the bump stops. Some people might be OK with this (like me ), others might not. It's at your discretion but even if you want a 100% stock ride you can lower the G87 at least 10mm without any impact to the ride quality. The beauty of a HAS kit is you can play with it. If it's too low and you are not happy raise it until you are. It'll still be lower than stock and since you are lowering the entire cars center of gravity it will handle better than stock.

EXAMPLE (These are generic struts for illustration purposes only)

Can you confirm that the HAS kit spring actually sit lower on the shock than the stock springs do? This is the first time I am reading this and it's reasuring to hear because this means in theory at a 10mm drop you aren't losing any suspension travel. Which ultimately could net a factory like ride at a 10mm drop. I know that I am repeating some of what you are already saying but I'm hoping you have some way to confirm that the spring perch does in fact sit lower on the shock body.

[Tag]

Originally Posted by slipinslidin

Can you confirm that the HAS kit spring actually sit lower on the shock than the stock springs do? This is the first time I am reading this and it's reasuring to hear because this means in theory at a 10mm drop you aren't losing any suspension travel. Which ultimately could net a factory like ride at a 10mm drop. I know that I am repeating some of what you are already saying but I'm hoping you have some way to confirm that the spring perch does in fact sit lower on the shock body.

The stock spring perch is replaced with an adjustable one that also has a lower profile allowing the new spring to sit lower on the parch. You're not going to find any documentation with measurements if that's what you're looking for. You can however search for install videos of the MPHAS on the G80, G82 or G87 as they all use the same kit.

[M2 SoCal]

Originally Posted by spademonkey

Also here is an image I took of the suspension today when the wheel was off for wheel measurements.

I had mine installed today and that’s a full 20mm drop in this pic (no threads showing) just like mine it’s really good💪

[M2 SoCal]

Originally Posted by Limegrntaln

It is the 20mm drop. I lowered and installed my M Perf has before BMW came out with the recommended specs. So, it’s a little lower than the 10mm recommended.

Here’s another angle and a picture of the HAS all the way down.

No spacers in this picture. The other pic in the rain, has 10mm in the front.

Looks sick. Do you find the ride is still kinda similar at 20mm compared to stock? I’ve heard it feels very similar just lower which is good.

[Limegrntaln]

Originally Posted by Autobahn SoCal

Looks sick. Do you find the ride is still kinda similar at 20mm compared to stock? I’ve heard it feels very similar just lower which is good.

Ride around with your suspension in sport and that’s what it now feels like in comfort.

[M2 SoCal]

Originally Posted by Limegrntaln

Ride around with your suspension in sport and that’s what it now feels like in comfort.

That’s good. BMW installed mine at 10mm today and it literally looks and feels the same as stock so I told them to lower it all the way to 20mm tomorrow. One thing I noticed and maybe it was just me but my steering got stiffer in a good way did you feel something similar?

[Limegrntaln]

Originally Posted by Autobahn SoCal

That’s good. BMW installed mine at 10mm today and it literally looks and feels the same as stock so I told them to lower it all the way to 20mm tomorrow. One thing I noticed and maybe it was just me but my steering got stiffer in a good way did you feel something similar?

Possibly it has to do with the new steering angle.

[M2 SoCal]

Originally Posted by Limegrntaln

Possibly it has to do with the new steering angle.

Good point

[AZG87]

Originally Posted by Autobahn SoCal

That’s good. BMW installed mine at 10mm today and it literally looks and feels the same as stock so I told them to lower it all the way to 20mm tomorrow. One thing I noticed and maybe it was just me but my steering got stiffer in a good way did you feel something similar?

Make sure they do an alignment after the drop to 20mm too.

[M2 SoCal]

Originally Posted by AZG87

Make sure they do an alignment after the drop to 20mm too.

Yep they said they would. Is yours at 20mm? How does it feel compared to stock?

[AZG87]

Originally Posted by Autobahn SoCal

Yep they said they would. Is yours at 20mm? How does it feel compared to stock?

Still at 10mm personally. Waiting to see fitment when I swap the tires to wider on the SLAs since I kept the stock ps4s originally.

[M2 SoCal]

Originally Posted by AZG87

Still at 10mm personally. Waiting to see fitment when I swap the tires to wider on the SLAs since I kept the stock ps4s originally.

10mm looked and felt exactly like stock, almost slightly higher IMO (with slightly better handling) which is why I’m lowering