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Go Back   IWSTI.com: Subaru WRX STI Forums > GD Series STi Discussion (2003/4-2007) > GD-Technical > GD-Suspension, Handling, & Stiffening


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Old 05-11-2007, 08:41 AM   #16
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Default Re: Ground Control / Koni Coilovers

I know everyone is also reading the Dennis Grant thread on shock theory...

I did a quick search and it seems like there are only two authorized Koni rebuilders in the US (according to a PDF I found on the Koni website). Reviews seemed mixed as to the customer service of the rebuilders and the turn around time can be quite long. Koni also does rebuilds and has good reviews but does not post any prices on the web. Considering all of this, is anyone now planning on having their GC Koni's sent out to be dynoed and matched?


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Old 05-11-2007, 08:53 AM   #17
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Default Re: Ground Control / Koni Coilovers

ProParts and TriPoint Engineering? I've actually talked with TriPoint on the subject in the past, and I'd very much trust them.

But personally, no, I would have no interest in getting my new struts rebuilt. I understand the benefits but I'm too frugal. Yeah, I'm a cheapskate. Besides, I just don't think I'm at a level where it'd matter to me.

TriPoint has shown two off-the-shelf Koni's were within 10% of one another. They've said this is typical. Here's a great thread on the subject:
http://www.msprotege.com/forum/showt...hp?t=123666252
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Old 05-11-2007, 09:45 AM   #18
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Default Re: Ground Control / Koni Coilovers

Quote:
Originally Posted by stretch
ProParts and TriPoint Engineering? I've actually talked with TriPoint on the subject in the past, and I'd very much trust them.
Yes, those are the ones. Here is the PDF if anyone is interested. http://www.koni-na.com/pdfcatalogs/K...ortCatalog.pdf

Quote:
Originally Posted by stretch
Yeah, I'm a cheapskate. Besides, I just don't think I'm at a level where it'd matter to me.
I hear you on this one. When you consider shipping, that is easily $500 I could spend on something else like camber plates or roll center adjusters.

Quote:
Originally Posted by stretch
TriPoint has shown two off-the-shelf Koni's were within 10% of one another. They've said this is typical.
It is kind of hard to know which guru to trust here. Despite all the good things Dennis Grant said about Konis, he still said there is significant shock to shock variance.

Thanks for your input, Stretch. I know I wouldn't get Koni's revalved, but I was curious to see what other people were thinking.
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Old 05-11-2007, 10:38 AM   #19
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Default Re: Ground Control / Koni Coilovers

Quote:
Originally Posted by stretch
TriPoint has shown two off-the-shelf Koni's were within 10% of one another. They've said this is typical. Here's a great thread on the subject:
http://www.msprotege.com/forum/showt...hp?t=123666252
I just went and re-read the Koni dyno from that thread. They actually said they are usually within 10% after they rebuild/revalve them. In the off the shelf dyno that they show, my eyeball says they are off about 20% max. Still, they look pretty darn good compared to the 'crap' dyno.
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Old 05-11-2007, 11:04 AM   #20
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Default Re: Ground Control / Koni Coilovers

^ ah, thanks. I should've re-read things instead of going off memory.
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Old 05-11-2007, 11:06 AM   #21
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Default Re: Ground Control / Koni Coilovers

can we get a sticky on this thread?
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Old 05-11-2007, 11:51 AM   #22
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Default Re: Ground Control / Koni Coilovers (incuding 2005+ STI's)

no but i did add it to the threads of interest, way up at the top
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Old 05-11-2007, 06:13 PM   #23
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Default Re: Ground Control / Koni Coilovers (incuding 2005+ STI's)

Spoke with Mark today about this setup. He recommended the SA's instead of the DA's out of his personal experience. I'm torn between what to run. What do you guys think?
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Old 05-11-2007, 07:49 PM   #24
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Default Re: Ground Control / Koni Coilovers (incuding 2005+ STI's)

Quote:
Originally Posted by BM_STi
Spoke with Mark today about this setup. He recommended the SA's instead of the DA's out of his personal experience. I'm torn between what to run. What do you guys think?
What do you use the car for?

I opted for the SA's, for 400/450 rates. He didn't seem to be very keen on the street ride of the 8611's. If I feel like the SA's are lacking I may upgrade later, but for now I think it should be okay.
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Old 05-11-2007, 08:01 PM   #25
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Default Re: Ground Control / Koni Coilovers (incuding 2005+ STI's)

Certainly nothing wrong with the street ride of the 8611's, but whatever floats your boat.
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Old 05-11-2007, 08:18 PM   #26
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Default Re: Ground Control / Koni Coilovers (incuding 2005+ STI's)

I've been running my setup for almost a year now, and I love them! The ride is actually pretty good(much better than my old zeals, and i'm running stiffer springs) with the 8611's, and if I so choose I can drop in the 8610's into the GC housings. The only negative so far is that the brakeline brackets are welded a bit off, but I just used some washers to take up the gap and everything has been great. Oh and like teh clap said the mounting ears are a bit weird. I tried to fit 17x9.5 et 44 wheels in the front and they hit the mounting ear. I now run 17x9.5 et 38 wheels without issues in the front. I chose the GC setup over the ZZYZX's because it's pretty much the same setup, just cheaper, and I can easily change springs(have changed springrates probably 6 times now) as well as change to the 8610's if I so choose. If anyone has any specific questions just shoot me a pm
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Old 05-12-2007, 03:59 AM   #27
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Default Re: Ground Control / Koni Coilovers (incuding 2005+ STI's)

Ha, it must have been you! Mark said a user reported the brake bracket being off, so they went back and collected the stock struts off of several model year STI's. Their brake mount is, according to Mark, an exact match of every OE strut they sampled. He mentioned it several times, as if there was a heated internet debate over it sometime in the past. It's funny to finally hear someone else bring it up.
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Old 05-12-2007, 05:39 PM   #28
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Default Re: Ground Control / Koni Coilovers (incuding 2005+ STI's)

Quote:
Originally Posted by ButtDyno
What do you use the car for?

I opted for the SA's, for 400/450 rates. He didn't seem to be very keen on the street ride of the 8611's. If I feel like the SA's are lacking I may upgrade later, but for now I think it should be okay.
I'm planning to Time Attack and Road Race the car as far as motorsports go. Of course the occasional 1/4 mile track days. Ride quality on the street is the least of my worries.

BTW SA = "koni reds" and DA = "koni yellows"???

Last edited by BM_STi; 05-12-2007 at 05:43 PM.
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Old 05-12-2007, 08:51 PM   #29
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Default Re: Ground Control / Koni Coilovers (incuding 2005+ STI's)

Hahah yea Mark told me originally that the brake line brackets were fixed, but when I received my coilovers the brackets were still off, so I told him and sent him pics and he said he'd look into it. BTW SA are single adjustable(rebound only) usually referring to the koni yellows, while DA refers to double adjustable as in you can adjust compression and rebound separately(rebound on top, compression on the bottom of the shock. They are also yellow though lol
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Old 05-12-2007, 11:25 PM   #30
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Default Re: Ground Control / Koni Coilovers (incuding 2005+ STI's)

Any links as to where we can buy these products ?


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