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Suspension & Braking Forum by BimmerWorld
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Old 01-17-2016, 01:48 PM   #1
Willbong
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STX Coilovers, anyone bought them before?

Hey guys! i did a quick search to see if someone had already asked this question but i didnt find anything, Just wondering if anyone has had any experience with the STX brand coilovers, i found a set for my 99 328i E46 and i like how it has threaded adjustable rear coils, just hoping they are a quality product.
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Old 01-17-2016, 02:25 PM   #2
Rob43
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Quote:
Originally Posted by Willbong View Post
Hey guys! i did a quick search to see if someone had already asked this question but i didnt find anything, Just wondering if anyone has had any experience with the STX brand coilovers, i found a set for my 99 328i E46 and i like how it has threaded adjustable rear coils, just hoping they are a quality product.

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When you want info like this, always try to provide a link to the correct model you're looking at. This way it takes the guess work out of trying to help you.



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SUMMIT POINT WV 1:24:229 S.C.C.A.
(DynoDynamics https:vimeo.com/8486878 Dyno Video)
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Quote:
Originally Posted by RacerX View Post
Nitrous is a little trickier than boost, but it's not the spray that kills motors, it's STUPIDITY!!
I have a GREAT/CHEAP source on KONI SPORT Shocks & Struts at the moment !
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Old 01-19-2016, 11:19 PM   #3
Willbong
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Ok yup that would make sense
well heres a link to the set that i am interested in
https://www.ecstuning.com/BMW-E46-32...ers/ES2795151/

i have found some reviews for people who used them for Audi and they liked them, but i just want to know if anyone knows if they hold up well to daily life
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Old 01-19-2016, 11:52 PM   #4
zander271
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STX Coilovers, anyone bought them before?

I think they are made by KW, so I assume the quality is ok. I had KW2's and switched to the Koni FSD's pro kit because coilovers suck on rough roads. What we really need is to know what you want to do. Lower, slam, improve performance? Rob43 is suspension expert. He advice is gold Treat him well.

Below is my ZHP, are you trying to get it to look like this?

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ZHP Mods: JB Lightweight fly wheel (10.5 pounds), Koni FSD ProKit, Supreme Power Drop Hats, Hotchkis front(30.2mm) and rear( 25.4mm) sway bars, Sprint Booster, AFE Stage 1 Intake (Dry Filter), Morimoto EvoX-R Headlights, Orion V4 Angel Eyes, Satin Black 18x9" ET42 APEX ARC-8 Wheel


330xi Mods: Front Koni Yellow Struts and Rob43 Rear 9 Way adjustable Rear Dampers, H&R Sport Springs, Supreme Power Drop Hats, ZHP 5 speed shift knob


Last edited by zander271; 01-20-2016 at 12:51 AM.
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Old 01-20-2016, 12:09 AM   #5
Rob43
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A little brighter & bigger.


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Rob #43 ITS/ITR/STU, BMW 325I, STU LAP RECORD
SUMMIT POINT WV 1:24:229 S.C.C.A.
(DynoDynamics https:vimeo.com/8486878 Dyno Video)
"Chance Favors The Prepared Mind"

NEW E46 Xi COILOVERS DISCOVERED FOR ~$729 SHIPPED
Quote:
Originally Posted by RacerX View Post
Nitrous is a little trickier than boost, but it's not the spray that kills motors, it's STUPIDITY!!
I have a GREAT/CHEAP source on KONI SPORT Shocks & Struts at the moment !
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Old 01-20-2016, 12:18 AM   #6
Rob43
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Quote:
Originally Posted by Willbong View Post
Ok yup that would make sense
well heres a link to the set that i am interested in
https://www.ecstuning.com/BMW-E46-32...ers/ES2795151/

i have found some reviews for people who used them for Audi and they liked them, but i just want to know if anyone knows if they hold up well to daily life
OK, I'm very familiar.

Quote:
Originally Posted by zander271 View Post
I think they are made by KW, so I assume the quality is ok. I had KW2's and switched to the Koni FSD's pro kit because coilovers suck on rough roads. What we really need is to know what you want to do. Lower, slam, improve performance? Rob43 is suspension expert. He advice is gold Treat him well.

Below is my ZHP, are you trying to get it to look like this?

Yes, we need to know ALL of your thoughts on intended usage, road conditions where you live, how hard you drive it, & if there's a possibility of any type of track events.


Rob43
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Rob #43 ITS/ITR/STU, BMW 325I, STU LAP RECORD
SUMMIT POINT WV 1:24:229 S.C.C.A.
(DynoDynamics https:vimeo.com/8486878 Dyno Video)
"Chance Favors The Prepared Mind"

NEW E46 Xi COILOVERS DISCOVERED FOR ~$729 SHIPPED
Quote:
Originally Posted by RacerX View Post
Nitrous is a little trickier than boost, but it's not the spray that kills motors, it's STUPIDITY!!
I have a GREAT/CHEAP source on KONI SPORT Shocks & Struts at the moment !
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Old 01-20-2016, 01:08 AM   #7
Willbong
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Wow appreciate all the help guys, really thanks!
Well, it will be admittedly mostly for looks, but since any quality coilover kit for this car is close to the $1,000 mark i would like to also gain some handling from this. I bought this car to be a daily driver, i just want to customize the basic style really and still have a very enjoyable driving experience. (which it really has been so far, i love how this thing handles) I plan on just doing a few small things and then moving on to a project car.
So lower than the car in your picture, my daily driving area is pretty good, ill have to change my route to work to avoid a road riddled with bumps and potholes, but my drive to work should still be about 3-4 miles only. The roads here in NC are ok, there are definetely some places ill have to avoid but for the most part i dont see a big problem, a few of my friends have low daily drivers so i should be fine. I dont really drive the car hard very often, every now and then on a nice day ill take her out on the backroads and open her up or do a few donuts here and there in empty parking lots
again thanks for any input or advice!
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Old 01-20-2016, 01:55 AM   #8
Rob43
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My Ride: 03 331Ci 5spd R1200R
Quote:
Originally Posted by Willbong View Post
Wow appreciate all the help guys, really thanks!
Well, it will be admittedly mostly for looks, but since any quality coilover kit for this car is close to the $1,000 mark i would like to also gain some handling from this. I bought this car to be a daily driver, i just want to customize the basic style really and still have a very enjoyable driving experience. (which it really has been so far, i love how this thing handles) I plan on just doing a few small things and then moving on to a project car.
So lower than the car in your picture, my daily driving area is pretty good, ill have to change my route to work to avoid a road riddled with bumps and potholes, but my drive to work should still be about 3-4 miles only. The roads here in NC are ok, there are definetely some places ill have to avoid but for the most part i dont see a big problem, a few of my friends have low daily drivers so i should be fine. I dont really drive the car hard very often, every now and then on a nice day ill take her out on the backroads and open her up or do a few donuts here and there in empty parking lots
again thanks for any input or advice!

So are you wanting this type of stanced look ?


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Rob #43 ITS/ITR/STU, BMW 325I, STU LAP RECORD
SUMMIT POINT WV 1:24:229 S.C.C.A.
(DynoDynamics https:vimeo.com/8486878 Dyno Video)
"Chance Favors The Prepared Mind"

NEW E46 Xi COILOVERS DISCOVERED FOR ~$729 SHIPPED
Quote:
Originally Posted by RacerX View Post
Nitrous is a little trickier than boost, but it's not the spray that kills motors, it's STUPIDITY!!
I have a GREAT/CHEAP source on KONI SPORT Shocks & Struts at the moment !
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Old 01-20-2016, 05:32 AM   #9
Geo31
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Quote:
Originally Posted by Willbong View Post
Wow appreciate all the help guys, really thanks!
Well, it will be admittedly mostly for looks, but since any quality coilover kit for this car is close to the $1,000 mark i would like to also gain some handling from this. I bought this car to be a daily driver, i just want to customize the basic style really and still have a very enjoyable driving experience. (which it really has been so far, i love how this thing handles) I plan on just doing a few small things and then moving on to a project car.
So lower than the car in your picture, my daily driving area is pretty good, ill have to change my route to work to avoid a road riddled with bumps and potholes, but my drive to work should still be about 3-4 miles only. The roads here in NC are ok, there are definetely some places ill have to avoid but for the most part i dont see a big problem, a few of my friends have low daily drivers so i should be fine. I dont really drive the car hard very often, every now and then on a nice day ill take her out on the backroads and open her up or do a few donuts here and there in empty parking lots
again thanks for any input or advice!
You mention improved handling...

Just keep in mind that too much lowering will hurt handling. If you really drop it, extreme measures are required to preserve some handling. On production=based race cars that are not allowed to relocate suspension pick-up points, they run ungodly spring rates. The ungodly spring rates are not because such hard suspension intrinsically handles better. It'd because with strut suspension (like we have in the front), you put the suspension into a bad part of the camber curve when lowering too much. The extreme spring rates keep the suspension from moving too much so the handling doesn't go all whacked (highly technical term here ).
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Last edited by Geo31; 01-20-2016 at 05:33 AM.
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Old 01-20-2016, 05:34 AM   #10
Geo31
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Yes, the ST suspension is made by KW. Same guts, just not galvanized bodies IIRC.
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Old 01-25-2016, 11:13 AM   #11
Willbong
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Yes, the ST suspension is made by KW. Same guts, just not galvanized bodies IIRC.
ok thanks! thats good to know
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Old 01-25-2016, 11:18 AM   #12
Willbong
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Quote:
Originally Posted by Geo31 View Post
You mention improved handling...

Just keep in mind that too much lowering will hurt handling. If you really drop it, extreme measures are required to preserve some handling. On production=based race cars that are not allowed to relocate suspension pick-up points, they run ungodly spring rates. The ungodly spring rates are not because such hard suspension intrinsically handles better. It'd because with strut suspension (like we have in the front), you put the suspension into a bad part of the camber curve when lowering too much. The extreme spring rates keep the suspension from moving too much so the handling doesn't go all whacked (highly technical term here ).
Ok thanks good to know! im glad they are pretty much KWs haha being non galvanized will that mean they just wont take the same pounding the KWs could potentially take? and well hopefully the camber isn't too bad im not trying to be just flying through tires
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Old 01-25-2016, 11:19 AM   #13
asianisafish
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You'll want galvanized big time.....especially with coilovers....
Otherwise your collars will seize and now your coilovers are useless
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Old 01-25-2016, 05:11 PM   #14
Rob43
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Quote:
Originally Posted by Willbong View Post
Ok thanks good to know! im glad they are pretty much KWs haha being non galvanized will that mean they just wont take the same pounding the KWs could potentially take? and well hopefully the camber isn't too bad im not trying to be just flying through tires

You still Have Not answered any questions on intended use, we as a community can't help you until you post up quality info...



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Rob #43 ITS/ITR/STU, BMW 325I, STU LAP RECORD
SUMMIT POINT WV 1:24:229 S.C.C.A.
(DynoDynamics https:vimeo.com/8486878 Dyno Video)
"Chance Favors The Prepared Mind"

NEW E46 Xi COILOVERS DISCOVERED FOR ~$729 SHIPPED
Quote:
Originally Posted by RacerX View Post
Nitrous is a little trickier than boost, but it's not the spray that kills motors, it's STUPIDITY!!
I have a GREAT/CHEAP source on KONI SPORT Shocks & Struts at the moment !
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Old 01-25-2016, 09:53 PM   #15
Geo31
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Quote:
Originally Posted by asianisafish View Post
You'll want galvanized big time.....especially with coilovers....
Otherwise your collars will seize and now your coilovers are useless
In Chicago maybe....
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Old 02-16-2016, 10:57 AM   #16
Willbong
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My bad, heres what i intend to do with the vehicle. Its my to and from work and get around town vehicle, pretty much a daily. It will probably never see an actual race track. I just want reliable, height adjustable, and damping adjustable coilovers for a daily driver.
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