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Old 05-12-2008, 12:35 PM   #1
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My Ride: PY M3, 07 SLK, JB 3
Reality of Aftermarket Springs and Stock Shocks

Hello everyone!
I know this topic has been beaten to death but there hasnt been a good thread that actually concludes whether or not Aftermarket springs will kill your OEM shocks.

Members with Aftermarket Springs on OEM Shocks/struts please chime in so we can finally determine, in reality, how long stock shocks will last.


Please number and answer the 4 questions as they are numbered so we can have an organized database.

1.What aftermarket Springs do you have?
2.How many miles on car when you first got springs installed?
3.How many miles since Springs were install?
4.Are you happy with aftermarket springs/stock Shock? Why or Why not
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Old 05-12-2008, 12:40 PM   #2
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Old 06-06-2008, 07:57 PM   #3
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1.H&R Sport
4.The shocks and struts are KYB. Rides fine to me. I bottom out on speed bumps regularyly, but that's okay
What makes you come alive?.........Go do it.
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Old 06-06-2008, 08:38 PM   #4
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My Ride: is gone :(
1: eibach sportline (bought them used, so dont know how many miles were on them)
2:installed at ~66k miles
3:~4k miles
4: they're great.. lowered the car a little bit. 1 finger gap in the rear, about 2 1/2 finger gap in the front. only complaint is that its not lower in the front. but have had no problems with stock shocks yet. their holding up fine!!!!

i got a great deal on these thats why i scooped them up.. if i were to buy new, i would go with H&R Race, just so the front would be lower..
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Old 06-07-2008, 06:35 AM   #5
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1. Eibach Pro Kit
2. Not sure, came from dealer that way
3. 20K, 20 track days
4. It was an excellent combo. Just installed coilovers. I have only had one opportunity to tune the coilovers and they are not yet better than the Eibach/Stock setup. As for aesthetics, the drop was perfect.
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Old 08-19-2008, 02:56 AM   #6
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im really considering putting on hr sport springs on the stock shocks/ struts, so everyone on this thread thinks it would be ok, my shocks are fine now, but one of my back springs is messed up, which is the main reason im doing it
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Old 08-19-2008, 05:57 AM   #7
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^How many miles you got on those shocks? 50K or more, I'd say change them while you're at it...sort of preventative maintenance. Unless you think you won't hesitate to go throught the process again when they start to show signs of ware; then leave them on.
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Old 08-20-2008, 04:07 PM   #8
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1. I used to have H&R Part # 29-484
2. Put them on around 70k
3. Took them off within 2 months.
4. Terrible experience. Bottomed out on speed bumps, dismal handling, stock sport shocks were not happy. If I had known I would have just bought coil-overs from the get-go.
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Old 08-21-2008, 08:44 AM   #9
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My Ride: ESS TS2 320ci
Shocks: Sachs Sport (Factory OEM) - 73000 miles currently
Springs: Eibach Pro-Kit - 40000 miles

No problems even with the extremely bad roads we have here. Been in USA (3 years) and it doesn't even come close to what we suffer here. potholes, bad roadwork, cracks, bumps, etc etc
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