Need advice re Koni FSDs please!

B39 B58 · 03-13-2013, 01:56 PM

Hi all,

I have an '09 335i sedan with sport package, and the rough ride over city streets is starting to get to me. I think an upgrade to Koni FSD shocks might be the answer to my problems, but need some advice. Here are my questions:

1) How much should installation of a set of FSDs cost? I've read a couple threads saying that it shouldn't be more than $300, but my local shop just quoted me 4-7 hours at $140/hr (not including an alignment after).

2) Can someone recommend a good shop in the SF Bay Area that could handle this at a reasonable price?

3) Will there be any demand for my old sport dampers? They'll have less than 30k miles on them. What should I ask for them?

4) I plan on keeping my sport springs on the car. Is that ok? Will I need to shorten the bump stops, and if so, will that increase the risk of the wheel contacting the wheel well?

Sorry for all the questions, but I know nothing about this stuff. Grateful for any advice you guys can provide. Thanks!

cvc 22349a · 03-13-2013, 02:36 PM

I ran fsd's with sport springs for a couple years. Better comfort and handling than the oe dampers. You won't need an alignment or different bumpstops. Sonic MS in mtn view is a great shop. You won't get much if anything for your oe dampers.

B39 B58 · 03-13-2013, 02:50 PM

Quote:

Originally Posted by cvc 22349a

I ran fsd's with sport springs for a couple years. Better comfort and handling than the oe dampers. You won't need an alignment or different bumpstops. Sonic MS in mtn view is a great shop. You won't get much if anything for your oe dampers.

Thanks for the info. How much did you pay for installation?

jwong77 · 03-13-2013, 03:10 PM

I paid 200 to have mine installed here http://www.yelp.com/biz/sleek-motoring-mountain-view

They are cool people and I trust their work, you can read the reviews yourself.

I'm really happy with my FSD's. Its more comfortable for sure, and I've driven in SF with my car, so I have first hand knowledge.

johmei · 03-13-2013, 03:19 PM

I would check alignment after changing shocks. Really any chassi work should be followed by an alignment eventhough you are not trying to change the geometry at all.

Mahhvinn · 03-16-2013, 07:52 AM

SonicMS in Mt. View
SpeedElement in San Jose

HP Autosport · 03-16-2013, 06:24 PM

1) How much should installation of a set of FSDs cost? I've read a couple threads saying that it shouldn't be more than $300, but my local shop just quoted me 4-7 hours at $140/hr (not including an alignment after).

4 hours is about right. Labor rate can vary from as long as $60 an hour to $180 an hour depend on where you live.

2) Can someone recommend a good shop in the SF Bay Area that could handle this at a reasonable price?

3) Will there be any demand for my old sport dampers? They'll have less than 30k miles on them. What should I ask for them?

Keep them as you may never know when you need some OE dampers.

4) I plan on keeping my sport springs on the car. Is that ok? Will I need to shorten the bump stops, and if so, will that increase the risk of the wheel contacting the wheel well?

Your OE bump stops are fine, no need to upgrade.

03-13-2013, 01:56 PM	#1
B39 B58 Private First Class 16 Rep 110 Posts Drives: 2016 340i / M Sport / 6MT Join Date: Oct 2012 Location: San Francisco, CA iTrader: (0)	Need advice re Koni FSDs please! Hi all, I have an '09 335i sedan with sport package, and the rough ride over city streets is starting to get to me. I think an upgrade to Koni FSD shocks might be the answer to my problems, but need some advice. Here are my questions: 1) How much should installation of a set of FSDs cost? I've read a couple threads saying that it shouldn't be more than $300, but my local shop just quoted me 4-7 hours at $140/hr (not including an alignment after). 2) Can someone recommend a good shop in the SF Bay Area that could handle this at a reasonable price? 3) Will there be any demand for my old sport dampers? They'll have less than 30k miles on them. What should I ask for them? 4) I plan on keeping my sport springs on the car. Is that ok? Will I need to shorten the bump stops, and if so, will that increase the risk of the wheel contacting the wheel well? Sorry for all the questions, but I know nothing about this stuff. Grateful for any advice you guys can provide. Thanks! __________________ 2016 340i M Sport \| 6MT
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03-13-2013, 02:36 PM	#2
cvc 22349a Colonel 166 Rep 2,556 Posts Drives: 335i Join Date: Sep 2007 Location: SF Bay iTrader: (11)	I ran fsd's with sport springs for a couple years. Better comfort and handling than the oe dampers. You won't need an alignment or different bumpstops. Sonic MS in mtn view is a great shop. You won't get much if anything for your oe dampers. __________________ 2007 E90 335i, TiAg, 6AT, ZPP, ZSP, ZCW, 6FL, HD Quaife lsd, ETS fmic, GIAC s/w, Dinan intake/exhaust/oc, Koni/M3 susp, Apex Arc 8, Mich PSS
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03-13-2013, 03:10 PM	#4
jwong77 Captain 447 Rep 846 Posts Drives: 2018 530e Join Date: Sep 2010 Location: Pleasanton iTrader: (7) Garage List 2018 BMW X3 M40i [10.00] 2018 BMW 530e [10.00] 2007 BMW 328i Coupe ... [10.00]	I paid 200 to have mine installed here http://www.yelp.com/biz/sleek-motoring-mountain-view They are cool people and I trust their work, you can read the reviews yourself. I'm really happy with my FSD's. Its more comfortable for sure, and I've driven in SF with my car, so I have first hand knowledge. __________________ 2018 BMW 530e Alpine White \| Black Napa Leather \| Bone Stock
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03-13-2013, 03:19 PM	#5
johmei Private First Class 6 Rep 180 Posts Drives: BMW E90 M3 ZCP Join Date: Mar 2012 Location: Sweden iTrader: (1) Garage List 2010 BMW E90 M3 ZCP [0.00] 2007 BMW E92 335i [0.00]	I would check alignment after changing shocks. Really any chassi work should be followed by an alignment eventhough you are not trying to change the geometry at all.
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03-16-2013, 07:52 AM	#6
Mahhvinn EUROPROJEKTZ 191 Rep 7,958 Posts Drives: backwards Join Date: Dec 2008 Location: San Jose, CA (Bay Area) iTrader: (15) Garage List 2008 E90 335i [7.00]	SonicMS in Mt. View SpeedElement in San Jose __________________ LTMW\|SPEEDELEMENT\|EUROPROJEKTZ #TeamStretchNPoke
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03-16-2013, 06:24 PM	#7
HP Autosport Supreme Allied Commander 4095 Rep 55,888 Posts Drives: F80 M3 Join Date: Mar 2007 Location: Santa Barbara, AP, Brembo, GIAC, Koni, Ohlins, Performance Friction, www.hpautosport.com iTrader: (36)	1) How much should installation of a set of FSDs cost? I've read a couple threads saying that it shouldn't be more than $300, but my local shop just quoted me 4-7 hours at $140/hr (not including an alignment after). 4 hours is about right. Labor rate can vary from as long as $60 an hour to $180 an hour depend on where you live. 2) Can someone recommend a good shop in the SF Bay Area that could handle this at a reasonable price? 3) Will there be any demand for my old sport dampers? They'll have less than 30k miles on them. What should I ask for them? Keep them as you may never know when you need some OE dampers. 4) I plan on keeping my sport springs on the car. Is that ok? Will I need to shorten the bump stops, and if so, will that increase the risk of the wheel contacting the wheel well? Your OE bump stops are fine, no need to upgrade.
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