Lowering '14 F10 M5 CP

M5 BAT · 08-09-2014, 10:43 AM

Very interested in this discussion. I have a 2015 M5 with Competition Package on order. I want H&R Springs, but am afraid these won't work quite as well on a Comp package M5.

Did H&R or Dinan say they are making some for the Comp package M5's?

bigfra · 08-09-2014, 02:51 PM

Honestly mate, the h&r springs are bang on. I've had mine since my new cp 4 months ago and they are superb. Just get them!

Fantasm · 08-09-2014, 04:18 PM

How much lower does it bring the car thats already CP?
I don't believe that H&R springs are rated for the stiffer CP dampers. They do NOT make different springs for non-CP M5 vs CP M5, so its not possible that the regular H&R's that are made for the NON-CP M5 will be proper for the CP M5.

bigfra · 08-11-2014, 04:19 PM

Quote:

Originally Posted by Fantasm

How much lower does it bring the car thats already CP?
I don't believe that H&R springs are rated for the stiffer CP dampers. They do NOT make different springs for non-CP M5 vs CP M5, so its not possible that the regular H&R's that are made for the NON-CP M5 will be proper for the CP M5.

Work fine on mine

BarryC · 08-11-2014, 05:12 PM

Springs are springs. I doubt that H&R will sell a spring that is beyond the dampening capability of the stock shocks. Seriously just marginal increases in spring rate 15-20% not a doubling or tripling of spring rate. So the non-cp specific springs should not be an issue for a cp car imo...

BC

gmd2003 · 08-11-2014, 06:46 PM

Quote:

Originally Posted by BarryC

Springs are springs. I doubt that H&R will sell a spring that is beyond the dampening capability of the stock shocks. Seriously just marginal increases in spring rate 15-20% not a doubling or tripling of spring rate. So the non-cp specific springs should not be an issue for a cp car imo...

BC

The problem is if you care about performance the CP springs are actually stiffer than the H&R ( 20% stiffer than stock ). The only advantage of the H&R is the cosmetic lowering .

M5 BAT · 08-11-2014, 08:36 PM

Has anyone considered the KW H.A.S. for the M5? I am thinking of purchasing and would love to hear from someone that has this installed on a M5 CP. Perhaps I will be the first?

BarryC · 08-11-2014, 08:48 PM

Quote:

Originally Posted by gmd2003

The problem is if you care about performance the CP springs are actually stiffer than the H&R ( 20% stiffer than stock ). The only advantage of the H&R is the cosmetic lowering .

Assuming you are correct, shouldn't be an issue for the dampers to be able to control a softer spring. BTW, would you happen to know the spring rate of the dinan springs relative to the cp springs? softer firmer?

On the other end of the spectrum, I would assume the kw clubsports would be the ultimate off the shelf setup in performance for this car.

bc

gmd2003 · 08-11-2014, 08:58 PM

Quote:

Originally Posted by BarryC

Quote:

Originally Posted by gmd2003

The problem is if you care about performance the CP springs are actually stiffer than the H&R ( 20% stiffer than stock ). The only advantage of the H&R is the cosmetic lowering .

Assuming you are correct, shouldn't be an issue for the dampers to be able to control a softer spring. BTW, would you happen to know the spring rate of the dinan springs relative to the cp springs? softer firmer?

On the other end of the spectrum, I would assume the kw clubsports would be the ultimate off the shelf setup in performance for this car.

bc

Having an undersprung damper can significantly affect performance , again since most don't drive their car hard or on track you can get away with it . I just have a problem with paying for an excellent OEM suspension that has been extensively tested as a unit and throwing a worse performing part on it . I would imagine Dinan's spring is in the same ballpark , but again money for no performance gain . I would leave the CP alone or go for a full performance coilover like the Clubsport .

greentrbo95gst · 08-11-2014, 11:07 PM

I had H&R's for a year an today installed KW sleeve kit. It is less bouncy than H&R. I like how it performs as well.

SSR · 08-14-2014, 10:01 PM

Quote:

Originally Posted by greentrbo95gst

I had H&R's for a year an today installed KW sleeve kit. It is less bouncy than H&R. I like how it performs as well.

Did you returned to OEM M5 springs with KW sleeve kit ?

I feel the same with my K&N and im not happy..

greentrbo95gst · 08-14-2014, 11:45 PM

Quote:

Originally Posted by SSR

Did you returned to OEM M5 springs with KW sleeve kit ?

I feel the same with my K&N and im not happy..

The KW kit comes with springs and sleeve that helps you control the height.

h4nh · 08-15-2014, 12:14 AM

h&r springs were spot on for me.

SSR · 08-16-2014, 07:27 PM

Ordered KW sleeves

Fantasm · 08-16-2014, 08:44 PM

for a competition package?

SSR · 08-16-2014, 08:51 PM

No, reg M5.

Spinny02 · 08-16-2014, 09:25 PM

Dinan coilovers should go the trick.

diononiz · 08-19-2014, 07:45 PM

Second the dinan coilovers. adjustable height and a great balance between handling and ride quality

Fantasm · 08-20-2014, 03:20 AM

No offense to anyone at all in this thread, but a lot of the posts are from owners of NON-cp cars (per your sigs / profiles).

The OP and myself are looking for advice on lowering while enhancing the stock Competition Package suspension - at minimum, getting equal performance.

The KW H.A.S. kit looks appealing but I'm still waiting on whether the HAS kit springs are as stiff as the stock CP ones for a perfect match. I didn't want to hit up a random retailer and ask (plus lead them on into thinking they have a sale) unless I know for sure they are asking KW the right question directly. Not sure why KW doesn't specify the compatibility (or un-) on their site.

Blkthght · 03-02-2015, 05:27 PM

Possibly ordering a car soon and I'm very interested in finding out what aftermarket suspension options would work best for a CP M5......hence the BUMP!

6spdterror · 03-02-2015, 09:55 PM

I have heard nothing but good things about the KW sleeve over kit. Might be going that route myself

Blkthght · 03-03-2015, 05:49 PM

I currently have AC schnitzer springs on my 550i with the dynamic shocks and roll stabilization and I couldn't be more pleased. My car rides just as comfortable as stock and firms up solid in sport mode for that planted feeling. Handles very well for a big sedan.

Any thoughts on how ACS springs would perform on a CP M5?? Apparently the majority of M5 owners who change out their springs choose H&R. Other than H&R being half the price of ACS, not sure why everyone goes that route. It's my understanding from several owners who have had both is that ACS springs are stiffer than H&R. Also, not sure I want to spend extra on a KW sleeve or spring kit since the car will already have the comp pack. And coilovers seem like overkill to me. Any thoughts welcome.

08-09-2014, 10:43 AM	#23
M5 BAT Enlisted Member 9 Rep 48 Posts Drives: 2015 BMW M5 Join Date: Apr 2014 Location: Toronto iTrader: (0)	Very interested in this discussion. I have a 2015 M5 with Competition Package on order. I want H&R Springs, but am afraid these won't work quite as well on a Comp package M5. Did H&R or Dinan say they are making some for the Comp package M5's?
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08-09-2014, 02:51 PM	#24
bigfra Second Lieutenant 128 Rep 297 Posts Drives: 991s , M5 Comp pack Join Date: Dec 2013 Location: Glasgow, Scotland iTrader: (0)	Honestly mate, the h&r springs are bang on. I've had mine since my new cp 4 months ago and they are superb. Just get them!
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08-09-2014, 04:18 PM	#25
Fantasm Lieutenant 39 Rep 475 Posts Drives: SL63 Join Date: Mar 2009 Location: Orange County, CA iTrader: (2)	How much lower does it bring the car thats already CP? I don't believe that H&R springs are rated for the stiffer CP dampers. They do NOT make different springs for non-CP M5 vs CP M5, so its not possible that the regular H&R's that are made for the NON-CP M5 will be proper for the CP M5. __________________ NOW: 2011 Ferrari 458, 2014 BMW M5 w/ CompPack, 2014 BMW X1, 2005 BMW M3 with Gintani SC&Meth, 2008 Ducati 1098 BEFORE: 24+ Other Awesome Cars - BYE - My Straight Piped Ferrari 458 (plus other mods): http://goo.gl/2qf5fW
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08-11-2014, 05:12 PM	#27
BarryC Major 121 Rep 1,198 Posts Drives: '15 M3 Join Date: May 2007 Location: Kernersville NC iTrader: (12)	Springs are springs. I doubt that H&R will sell a spring that is beyond the dampening capability of the stock shocks. Seriously just marginal increases in spring rate 15-20% not a doubling or tripling of spring rate. So the non-cp specific springs should not be an issue for a cp car imo... BC __________________ '15 M3, '16 911 Turbo S Cab
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08-11-2014, 08:36 PM	#29
M5 BAT Enlisted Member 9 Rep 48 Posts Drives: 2015 BMW M5 Join Date: Apr 2014 Location: Toronto iTrader: (0)	Has anyone considered the KW H.A.S. for the M5? I am thinking of purchasing and would love to hear from someone that has this installed on a M5 CP. Perhaps I will be the first?
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08-11-2014, 11:07 PM	#32
greentrbo95gst Brigadier General 1231 Rep 4,106 Posts Drives: 21 M5 Comp Join Date: Jan 2011 Location: Orange County iTrader: (6)	I had H&R's for a year an today installed KW sleeve kit. It is less bouncy than H&R. I like how it performs as well. __________________ Current: 21 M5 Comp, 17 X5M, 06 M3, 14 Ferrari FF, Tesla Model S Performance.
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08-15-2014, 12:14 AM	#35
h4nh Major 237 Rep 1,095 Posts Drives: 09 SC E90 M3 / 13 F10 M5 Join Date: Sep 2011 Location: Dallas, TX iTrader: (0) Garage List 2009 E90 M3 (superc ... [10.00] 2013 M5 [0.00]	h&r springs were spot on for me. __________________
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08-16-2014, 07:27 PM	#36
SSR Private 6 Rep 76 Posts Drives: F10 m5 Join Date: Oct 2012 Location: America iTrader: (0)	Ordered KW sleeves
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08-16-2014, 08:44 PM	#37
Fantasm Lieutenant 39 Rep 475 Posts Drives: SL63 Join Date: Mar 2009 Location: Orange County, CA iTrader: (2)	for a competition package? __________________ NOW: 2011 Ferrari 458, 2014 BMW M5 w/ CompPack, 2014 BMW X1, 2005 BMW M3 with Gintani SC&Meth, 2008 Ducati 1098 BEFORE: 24+ Other Awesome Cars - BYE - My Straight Piped Ferrari 458 (plus other mods): http://goo.gl/2qf5fW
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08-16-2014, 08:51 PM	#38
SSR Private 6 Rep 76 Posts Drives: F10 m5 Join Date: Oct 2012 Location: America iTrader: (0)	No, reg M5.
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08-16-2014, 09:25 PM	#39
Spinny02 Lieutenant Colonel 124 Rep 1,840 Posts Drives: '14 M5 CP Dinan Stage 2 Join Date: Jun 2013 Location: Houston, Tx iTrader: (2) Garage List 2018 Escalade ESV P ... [0.00] 2014 M5 Dinan S1 [0.00]	Dinan coilovers should go the trick. __________________
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08-19-2014, 07:45 PM	#40
diononiz Second Lieutenant 38 Rep 233 Posts Drives: 20 Porsche 911 Carrera S Cab Join Date: Jun 2007 Location: Mountain View, CA iTrader: (3)	Second the dinan coilovers. adjustable height and a great balance between handling and ride quality __________________ 20 Porsche 911 Carrera S Cab - Agate Gray 19 BMW X5 4.0Xdrive - White with Msport 19 Aston Martin Vantage - Magnetic Silver - Lemoned 16 Porsche 991 Turbo - White/Black - Gone but missed!
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08-20-2014, 03:20 AM	#41
Fantasm Lieutenant 39 Rep 475 Posts Drives: SL63 Join Date: Mar 2009 Location: Orange County, CA iTrader: (2)	No offense to anyone at all in this thread, but a lot of the posts are from owners of NON-cp cars (per your sigs / profiles). The OP and myself are looking for advice on lowering while enhancing the stock Competition Package suspension - at minimum, getting equal performance. The KW H.A.S. kit looks appealing but I'm still waiting on whether the HAS kit springs are as stiff as the stock CP ones for a perfect match. I didn't want to hit up a random retailer and ask (plus lead them on into thinking they have a sale) unless I know for sure they are asking KW the right question directly. Not sure why KW doesn't specify the compatibility (or un-) on their site. __________________ NOW: 2011 Ferrari 458, 2014 BMW M5 w/ CompPack, 2014 BMW X1, 2005 BMW M3 with Gintani SC&Meth, 2008 Ducati 1098 BEFORE: 24+ Other Awesome Cars - BYE - My Straight Piped Ferrari 458 (plus other mods): http://goo.gl/2qf5fW
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03-02-2015, 05:27 PM	#42
Blkthght Private First Class 28 Rep 165 Posts Drives: 2015 F10 M5 CP Singapore Grey Join Date: Nov 2011 Location: Los Angeles, CA iTrader: (2)	Possibly ordering a car soon and I'm very interested in finding out what aftermarket suspension options would work best for a CP M5......hence the BUMP!
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03-02-2015, 09:55 PM	#43
6spdterror Route Runner 137 Rep 661 Posts Drives: 16 ///M6 Gran Coupe Join Date: Jan 2010 Location: NYC iTrader: (0)	I have heard nothing but good things about the KW sleeve over kit. Might be going that route myself __________________ 16 SMB M6 Gran Coupe 16 BS X6 X-line (wife's truck) 13 AW M5 (sold) 04 Honda Pilot (everyday car)
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03-03-2015, 05:49 PM	#44
Blkthght Private First Class 28 Rep 165 Posts Drives: 2015 F10 M5 CP Singapore Grey Join Date: Nov 2011 Location: Los Angeles, CA iTrader: (2)	I currently have AC schnitzer springs on my 550i with the dynamic shocks and roll stabilization and I couldn't be more pleased. My car rides just as comfortable as stock and firms up solid in sport mode for that planted feeling. Handles very well for a big sedan. Any thoughts on how ACS springs would perform on a CP M5?? Apparently the majority of M5 owners who change out their springs choose H&R. Other than H&R being half the price of ACS, not sure why everyone goes that route. It's my understanding from several owners who have had both is that ACS springs are stiffer than H&R. Also, not sure I want to spend extra on a KW sleeve or spring kit since the car will already have the comp pack. And coilovers seem like overkill to me. Any thoughts welcome.
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