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      06-19-2014, 11:48 AM   #45
paradoxical3
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Quote:
Originally Posted by Justin(OKC) View Post
Any chance you could let us know what the difference is between an E90 kit and the E84 kit? Are the dimensions of the damper the same and it is just a different spring length or is the body/shaft of the damper longer? I am wanting to do something on my new X1 but really do not want to lower the car too much and make it look slammed. I have been spoiled for the last 5-6 years with AST dampers and I am afraid some of these off the shelf kits are not going to cut it. Higher grade springs from Swift with thrust sheets will be a priority. Any help you could give would be greatly appreciated. Thanks!
I will let you know in a day or so, these finally arrived so I'm heading down to the shop to discuss:

JRZ RS-1 Dampers
Ground Control camber plates
Swift Springs
M3 rear sway bar
M3 subframe bushings
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      06-19-2014, 01:53 PM   #46
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Quote:
Originally Posted by Justin(OKC) View Post
Any chance you could let us know what the difference is between an E90 kit and the E84 kit? Are the dimensions of the damper the same and it is just a different spring length or is the body/shaft of the damper longer? I am wanting to do something on my new X1 but really do not want to lower the car too much and make it look slammed. I have been spoiled for the last 5-6 years with AST dampers and I am afraid some of these off the shelf kits are not going to cut it. Higher grade springs from Swift with thrust sheets will be a priority. Any help you could give would be greatly appreciated. Thanks!
The e90 kit has shorter shocks and springs. I don't know the difference on the front, but the rear spring is 30mm shorter on the e90, and the shock is shorter as well. My BC kit on my X1 does not go super low, but that's fine with me.

The front strut lower diameter where it actually sits in the spindle is larger on the X1 kit as well.

You can opt for swift springs with the BC kits, and they do offer a kit with independent compression and rebound adjustment. I've been running the regular BR kit on my X1 for a few months and have two track days on it with no issues. I'm actually scheduled to be driving it at Sebring again this weekend. I've provided BC with feedback over the past few months and so far we've changed the rear shock valving once, and the rear spring twice. I'm now running a progressive rate rear spring and the car is much more comfortable on the street. It's been pretty great on the track so far but we'll see this weekend if the progressive rear spring hurts that at all.
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      06-20-2014, 03:55 PM   #47
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Thanks guys for the feedback. I am really torn on what to do because I am extremely spoiled with the AST 5300's on my M3! I don't want to lower the car a great deal, but I want the suspension to really work. Not sure I want to go crazy with subframe bushings and rear sway bar like I did on my 135i, but I sure did like those changes on that car!

Can't wait for feedback on the JRZ setup. I am intrigued by the BC Racing setup as well, but a little skeptical as to whether or not I'd be happy with it. The price is definitely right, though. I am currently talking with Hanchey Vehicle Technologies about what options I would have with their dampers.
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      06-21-2014, 04:16 AM   #48
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Quote:
Originally Posted by Activ3 View Post
There is a front swaybar clearance issue on my sDrive, which will be solved by including adjustable front endlinks. Pricing will be $995 shipped, including front camber plates.
I'm interested in roll-bar options for the X1. I plan on installing H&R springs and would like something to help a little with the body roll, but I don't want to go nearly as aggressive as your build. Our X1 will see a track exactly 1 time: just to earn her 'Ring sticker.

Are upgraded roll bar(s) even worth doing with the stock subframe bushings? Will stock 135i M-sport parts bolt up?
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      06-21-2014, 09:56 PM   #49
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please let me know if the e90 m3 rear sway bar fits and bushings and how it feels
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      07-21-2014, 05:38 PM   #50
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The rear M3 sway bar and bushing fit but the endlinks are too long. We actually substituted metal aftermarket Subaru STI endlinks and they fit PERFECTLY. The sway bar and subframe bushings make a huge difference,
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      09-30-2014, 07:20 PM   #51
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Quote:
Originally Posted by Activ3
Just installed a set of BC coilovers on my X1! Purchased and installed at Precision Sport Industries (www.precision-sport.com), they are the prototype BC's for this car, and so far fit great. The wheels are Rays 2x8 19" staggered.

Love it!!!
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      10-01-2014, 03:33 PM   #52
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Wow! How much does it cost on average to lower the car? I havent done it before.
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      10-18-2014, 02:00 AM   #53
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probably one of few best looking X1s
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      10-20-2014, 12:58 PM   #54
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Looks great, now you just have to get rid of those ugly horns (roof rack). Has any anyone removed them what's left (holes, etc).
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      10-23-2014, 07:33 PM   #55
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probably one of few best looking X1s
I second this
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      11-17-2014, 04:27 PM   #56
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Late Question

Hi Activ3,
Thought I was done with wheels but changing mind again.
Could you tell me your year, model type etc. and the original wheel, ET and tyre set up. Thanks.
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      11-24-2014, 09:24 PM   #57
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The stance looks great!
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      12-02-2014, 08:47 PM   #58
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Lowered/Tuned 28i

Lowered/Tuned 28i in the West Coast
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      04-24-2015, 01:28 PM   #59
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Perfection!
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