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Thread: Koni Sport + H&R Sport spring bump stop.

  1. #1
    Join Date
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    Koni Sport + H&R Sport spring bump stop.

    How much do you trim the bump stop? Do you trim the top or bottom?
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  2. #2
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    Did not trim mine, however the bottom has a ‘rib’ that indexes in the Dust Shield (missing in your photo), so the top portion gets trimmed away. I would trim at the notch.


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  3. #3
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    According to H&R, the Sport springs for our car (part # 29910-2 http://www.hrsprings.com/application...lts/4/95/1998/ ) require 0.75" trimming of the front bumpstops per their instructions:

    http://www.hrsprings.com/tech/hr_technical_info.pdf

    As the previous poster mentioned, the rib at the bottom of the bumpstop captures the dust shield, so that portion should be retained. I trimmed in the "V" valley and discarded the top portion.
    Nathan
    1998 Titanium/Dove M3/4/5
    2018 VW Golf R DSG
    2002 Toyota 4Runner

  4. #4
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    Totally makes sense that you can only trim the top since the bottom needs to capture the dust shield.

    Thanks
    FEEDBACK THREAD
    00-03 Nissan Maxima HID Retrofit
    6th gen AV6 FX35 Retrofit
    Chassis and Suspension
    2000 Sunlit Sand Maxima SE 5Spd.
    1997 Arctic Silver E36 M3/4/5.
    1997 Techno Violet E36 M3 Coupe 5Spd (SOLD).


  5. #5
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    Quote Originally Posted by RightYouAreKen View Post
    According to H&R, the Sport springs for our car (part # 29910-2 http://www.hrsprings.com/application...lts/4/95/1998/ ) require 0.75" trimming of the front bumpstops per their instructions:

    http://www.hrsprings.com/tech/hr_technical_info.pdf

    As the previous poster mentioned, the rib at the bottom of the bumpstop captures the dust shield, so that portion should be retained. I trimmed in the "V" valley and discarded the top portion.
    Note that Koni voids you warranty if you omit (trimmed) Bump Stop and Dust Shield.


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  6. #6
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    I trimmed the bottom.
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  7. #7
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    Quote Originally Posted by Hova View Post
    I trimmed the bottom.
    How did you install the Dust Shield?


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  8. #8
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    Quote Originally Posted by bluptgm3 View Post
    How did you install the Dust Shield?


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    I let the bump stop float and not capture the dust shield. I didn't see a difference considering how close the strut comes to the bump stop anyway.
    "Be who you are and say what you feel because those who mind don't matter and those who matter don't mind."
    -Dr. Seuss
    DIY BMW Tools. Charlie For President

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