KW Variant 3 versus GC/FG2
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2004-2007 Cadillac CTS-V Performance Mods Discussion, KW Variant 3 versus GC/FG2 in Cadillac CTS-V Series Forum - 2004 - 2007; I'd like your advice. I'm on the verge of buying another $800 worth of Eibach equipment and realized that I ...
  1. #1
    FuzzyLogic is offline Banned
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    KW Variant 3 versus GC/FG2

    I'd like your advice. I'm on the verge of buying another $800 worth of Eibach equipment and realized that I could probably put this money toward a set of KW Variant 3's if someone is interested in dropping about $1000 on the package listed at the bottom of this thread. Might be a long shot, though.

    For those of you with KW V3's (or better):
    • Do you have any experience with the Ground Control setup? If so, how would you compare them? Body roll? Nose dive during braking?
    • Are you running the stock spring rates, and if not, are you familiar with the availability of other spring rates, both during the original purchase and in the aftermarket?
    • Did your FG2's crap out on you, and if so, after how many miles?
    • Do you need any of your original suspension parts to install the KW system?
    • I've heard that you can find these things for less than $1900 if you know where to shop. Apparently, I don't know where to shop. Where did you buy yours?
    For the most part, I like my Ground Control setup. The linear springs give me the ability to control body lean and keep the wheels from bottoming despite the fact that I'm lowered. This is what I've been through thus far:
    • All of the Ground Control hardware
    • All four FG2's with 25,000 miles on them
    And the following 10 springs:
    • 2x 0550.250.1000 springs (550 in-lbs, 2.50" diameter, 10" length)
    • 2x 0600.250.1000 springs
    • 2x 0650.250.1000 springs
    • 2x 0650.250.0800 springs (650 in-lbs, 2.50" diameter, 8" length)
    • 2x 0700.250.0800 springs
    If I don't pick up KW Variant 3's, I'll be buying a set of Eibach couplers and four 600/1300 in-lb progressive tender springs. The only disadvantage of this system, in my mind, is that I won't be able to tune rebound and dampening.

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  3. #2
    philistine's Avatar
    philistine is offline Cadillac Owners Enthusiast
    Automobile(s): Black 2004 CTS-V
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    Re: KW Variant 3 versus GC/FG2

    I didn't get my KW-V3's for less than $1900 but it was close. After shipping it was $2003.32.
    http://www.highhorseperformance.com/...p/35263001.htm

    Do you need any of your original suspension parts to install the KW system?
    I did a write-up that can be found here:
    http://www.cadillacforums.com/forums...004-cts-v.html

    step 13 for the rears, step 11 for the fronts shows what gets reused.

    I kept the suggested settings from KW and love it. Got a good 4 wheel alignment afterwards, final settling took about month. Ran a few auto-x with them...but I suck so bad at it that I really can't give performance feedback - just that they feel good at all speeds. Never had any oversteer/understeer. The KW handling is night and day difference from the stock and H&R experience. Feels firmly planted, completely different car!

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