Rd sport springs or kw sleeve-over kit?

trakqar · 11-22-2011, 02:49 PM

Hey guys, I'm new to the forums, but I just wanted to know what you guys think I should buy. I'm debating between rd sport springs or the kw sleeve-over kit. I want to lower my car without ruining performance. Thanks.

BMW Fanatic · 11-22-2011, 03:57 PM

I'm guessing funds aren't an issue. Go with the sleeve over kit, if your car has EDC then you get to keep that as opposed to getting a set of coilovers. Post pics of the car!

THE TECH · 11-22-2011, 04:06 PM

I haven't seen any reason to go with the KW over a set or springs. You can't go any lower with the sleeve kit.

MR///M3 · 11-22-2011, 04:53 PM

Quote:

Originally Posted by THE TECH

I haven't seen any reason to go with the KW over a set or springs. You can't go any lower with the sleeve kit.

+1 I went with RD springs w/e36 bumpstops for that exact reason.. They have the drop I want at less than half the price of the sleeve over kit

SV Concepts II · 11-22-2011, 05:15 PM

My vote is for the RDSport springs. They are great springs and a lot of customers are say the ride height and stance is perfect.

tom @ eas · 11-22-2011, 05:26 PM

Quote:

Originally Posted by THE TECH

I haven't seen any reason to go with the KW over a set or springs. You can't go any lower with the sleeve kit.

Sure you can. Here's a recent install on the KW Sleeve kit:

OP: Let me know if you have any questions on springs or KW Sleeve kits!

Z K · 11-22-2011, 05:32 PM

The advantage of the sleeve over kit is to allow you to adjust the height - either lower than just lowering springs or higher as similar to the Dinan springs. Also makes it so you can corner weight the car for performance balance.

Cal@Sonic MS · 11-22-2011, 05:35 PM

Quote:

Originally Posted by tom @ eas

Sure you can. Here's a recent install on the KW Sleeve kit:

OP: Let me know if you have any questions on springs or KW Sleeve kits!

+1. You can go at least 5mm lower than any springs we've come across, and this includes RDS.

KW S/O KIT Max Low F/R.

RDS Springs.

MR///M3 · 11-22-2011, 05:39 PM

Quote:

Originally Posted by Cal@Sonic MS

+1. You can at least 5mm lower than any springs we've come across, and this includes RDS.

KW S/O KIT Max Low F/R.

RDS Springs.
]

I wouldn't ever put a sleeve over kit or coil overs on max low. I think it needs to be at least a couple turns above max low. I don't know why, but to me it sounds like a bad idea to put it literally at the limit of where it can be.

Also RD stance is perfect to me. Those tires on the rears are just too skinny and the offset isn't aggressive enough on those rear wheels.

ModBargains III · 11-22-2011, 05:42 PM

I would personally go with the KW Sleeve over kit

Mike@R · 11-22-2011, 05:57 PM

I also agree with KW sleeve kit over the RD springs.

trakqar · 11-22-2011, 06:36 PM

Thanks guys for the responses. I haven't done much to the car but get 3M black tint to all sides. Just waiting for my matte black grills to come in the mail. Otherwise it is an 08' AW e90 m3 with edc, tech package, premium package, carbon fiber trim. Can't do too much to it yet since so many things are coming up in a few months. Wedding and looking for a house. Will post pics when I can.

. Anyways, I think I might just go with the kw sleeve-over kit.

trakqar · 11-22-2011, 06:42 PM

Btw. How easy is it to adjust the height of the kw when already in place? Can I do it myself without removing the tires? For instance, what if I'm not happy with the height currently and want to make it higher or lower than it is?

Cal@Sonic MS · 11-22-2011, 06:51 PM

Quote:

Originally Posted by E90mtree

Btw. How easy is it to adjust the height of the kw when already in place? Can I do it myself without removing the tires? For instance, what if I'm not happy with the height currently and want to make it higher or lower than it is?

The front is relatively easy and can be done by simply jacking car up and taking the wheel off. The rear however requires a spring compressor and a professional is highly recommended.

THE TECH · 11-22-2011, 07:41 PM

Technically yes, maybe you can adjust the sleeve kit lower but if you check the recommended max lowering height that KW says their kit is meant for, it is no lower than a set of springs.

M3SQRD · 11-23-2011, 08:56 AM

I was considering the KW sleeve-over kit. However, after talking to a couple of vendors that sell this kit I decided against it because I was told unless you use the sport EDC setting the car is under-damped and the ride bouncy. I have no first hand experience but if that's true then it seems getting a sleeve-over to maintain EDC functionality is just not worth it.

Not sure if you'll run into the same issues with EDC damping and lowering springs or if it's the spring rate of the KW sleeve-over that's the problem? Again, no personal experience, just what I've been told...

datbimmerdoe · 11-23-2011, 10:43 AM

edc = kw
non-edc = rd

THE TECH · 11-23-2011, 10:44 AM

Quote:

Originally Posted by the infamous...

edc = kw
non-edc = rd

And why is that?

datbimmerdoe · 11-23-2011, 10:47 AM

umm cuz kw s/o is edc compatible n if he doesn't hav edc jus get rd

Mike@R · 11-23-2011, 10:54 AM

We have a customer that has the KW sleeve over kit with EDC and the ride is quite nice. We didn't do the install so I don't know exactly how it's adjusted... I believe Sonic installed it. The car is not slammed, but the stance is good. It's not bouncy at all. In my opinion it rides better than mine used to with Eibach sport springs.

THE TECH · 11-23-2011, 10:56 AM

Quote:

Originally Posted by the infamous...

umm cuz kw s/o is edc compatible n if he doesn't hav edc jus get rd

Still not much of an explanation.

datbimmerdoe · 11-23-2011, 11:00 AM

wut is there 2 explain? it's my opinion n if i was him thas how i'd look @ it...

11-22-2011, 02:49 PM	#1
trakqar "M" 25 Rep 159 Posts Drives: Aw e90 m3 Join Date: Nov 2011 Location: Inland Empire, CA iTrader: (0)	Rd sport springs or kw sleeve-over kit? Hey guys, I'm new to the forums, but I just wanted to know what you guys think I should buy. I'm debating between rd sport springs or the kw sleeve-over kit. I want to lower my car without ruining performance. Thanks.
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11-22-2011, 03:57 PM	#2
BMW Fanatic Banned 135 Rep 3,293 Posts Drives: slow Join Date: Jul 2009 Location: Calgary iTrader: (11)	I'm guessing funds aren't an issue. Go with the sleeve over kit, if your car has EDC then you get to keep that as opposed to getting a set of coilovers. Post pics of the car!
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11-22-2011, 04:06 PM	#3
THE TECH BimmerPost Supporting Vendor 307 Rep 13,093 Posts Drives: BPMsport 2012 E92 M3 Join Date: Jun 2011 Location: Kansas iTrader: (45) Garage List 2013 Nissan GTR [0.00] 2019 Sierra Denali ... [0.00] 1999 Nissan Silvia [0.00] 1999 Nissan Skyline ... [0.00] 1998 Toyota Supra [0.00]	I haven't seen any reason to go with the KW over a set or springs. You can't go any lower with the sleeve kit.
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11-22-2011, 05:15 PM	#5
SV Concepts II 269 Rep 6,093 Posts Drives: E90 M3 Join Date: Dec 2008 Location: 1460 White Oaks Rd. Suite F Campbell, CA 95008 iTrader: (7)	My vote is for the RDSport springs. They are great springs and a lot of customers are say the ride height and stance is perfect.
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11-22-2011, 05:32 PM	#7
Z K Major General 1887 Rep 5,506 Posts Drives: E90 M3, G20 M340i Join Date: Jul 2011 Location: San Francisco iTrader: (3)	The advantage of the sleeve over kit is to allow you to adjust the height - either lower than just lowering springs or higher as similar to the Dinan springs. Also makes it so you can corner weight the car for performance balance.
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11-22-2011, 05:42 PM	#10
ModBargains III Lieutenant 17 Rep 423 Posts Drives: E92 335i, 135i, E46 M3, 540i Join Date: Sep 2011 Location: 1721 E. Lambert Rd. Unit C, 90631 La Habra, CA iTrader: (0)	I would personally go with the KW Sleeve over kit __________________ Jurrian************.com
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11-22-2011, 05:57 PM	#11
Mike@R Private First Class 21 Rep 124 Posts Drives: E46 M3, E92 M3 Join Date: Mar 2011 Location: Bay Area, CA iTrader: (1)	I also agree with KW sleeve kit over the RD springs.
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11-22-2011, 06:36 PM	#12
trakqar "M" 25 Rep 159 Posts Drives: Aw e90 m3 Join Date: Nov 2011 Location: Inland Empire, CA iTrader: (0)	Thanks guys for the responses. I haven't done much to the car but get 3M black tint to all sides. Just waiting for my matte black grills to come in the mail. Otherwise it is an 08' AW e90 m3 with edc, tech package, premium package, carbon fiber trim. Can't do too much to it yet since so many things are coming up in a few months. Wedding and looking for a house. Will post pics when I can. . Anyways, I think I might just go with the kw sleeve-over kit.
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11-22-2011, 06:42 PM	#13
trakqar "M" 25 Rep 159 Posts Drives: Aw e90 m3 Join Date: Nov 2011 Location: Inland Empire, CA iTrader: (0)	Btw. How easy is it to adjust the height of the kw when already in place? Can I do it myself without removing the tires? For instance, what if I'm not happy with the height currently and want to make it higher or lower than it is?
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11-22-2011, 07:41 PM	#15
THE TECH BimmerPost Supporting Vendor 307 Rep 13,093 Posts Drives: BPMsport 2012 E92 M3 Join Date: Jun 2011 Location: Kansas iTrader: (45) Garage List 2013 Nissan GTR [0.00] 2019 Sierra Denali ... [0.00] 1999 Nissan Silvia [0.00] 1999 Nissan Skyline ... [0.00] 1998 Toyota Supra [0.00]	Technically yes, maybe you can adjust the sleeve kit lower but if you check the recommended max lowering height that KW says their kit is meant for, it is no lower than a set of springs.
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11-23-2011, 08:56 AM	#16
M3SQRD Major General 2083 Rep 5,472 Posts Drives: E92 M3,G20 330ix,F22 240iX,F82 Join Date: Jun 2009 Location: Mid-Atlantic iTrader: (11)	I was considering the KW sleeve-over kit. However, after talking to a couple of vendors that sell this kit I decided against it because I was told unless you use the sport EDC setting the car is under-damped and the ride bouncy. I have no first hand experience but if that's true then it seems getting a sleeve-over to maintain EDC functionality is just not worth it. Not sure if you'll run into the same issues with EDC damping and lowering springs or if it's the spring rate of the KW sleeve-over that's the problem? Again, no personal experience, just what I've been told...
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11-23-2011, 10:43 AM	#17
datbimmerdoe Lieutenant General 1265 Rep 17,493 Posts Drives: like I'M BOUT THAT LIFE Join Date: Jul 2008 Location: PARADISE aka CANES COUNTRY iTrader: (0)	edc = kw non-edc = rd __________________ #datbimmerdoe #thatbimmertho FOLLOW @datbimmerdoe on INSTAGRAM
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11-23-2011, 10:47 AM	#19
datbimmerdoe Lieutenant General 1265 Rep 17,493 Posts Drives: like I'M BOUT THAT LIFE Join Date: Jul 2008 Location: PARADISE aka CANES COUNTRY iTrader: (0)	umm cuz kw s/o is edc compatible n if he doesn't hav edc jus get rd __________________ #datbimmerdoe #thatbimmertho FOLLOW @datbimmerdoe on INSTAGRAM
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11-23-2011, 10:54 AM	#20
Mike@R Private First Class 21 Rep 124 Posts Drives: E46 M3, E92 M3 Join Date: Mar 2011 Location: Bay Area, CA iTrader: (1)	We have a customer that has the KW sleeve over kit with EDC and the ride is quite nice. We didn't do the install so I don't know exactly how it's adjusted... I believe Sonic installed it. The car is not slammed, but the stance is good. It's not bouncy at all. In my opinion it rides better than mine used to with Eibach sport springs.
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11-23-2011, 11:00 AM	#22
datbimmerdoe Lieutenant General 1265 Rep 17,493 Posts Drives: like I'M BOUT THAT LIFE Join Date: Jul 2008 Location: PARADISE aka CANES COUNTRY iTrader: (0)	wut is there 2 explain? it's my opinion n if i was him thas how i'd look @ it... __________________ #datbimmerdoe #thatbimmertho FOLLOW @datbimmerdoe on INSTAGRAM
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