kw SC vs b12 vs koni/r spec swift

parabmw · 02-06-2015, 10:49 PM

B12 good value
koni adjustable more expensive
Kw SC more expensive also height adjustment

All have linear springs I think.

Which is recommended by users?

cvc 22349a · 02-06-2015, 11:19 PM

Ha! I'm thinking you've done your research and will have to decide for yourself. All three sound like good options for a sporty dd. Swift will have the least amount of shock travel, which means something to me.

parabmw · 02-07-2015, 08:03 AM

I prefer a small drop 10mm over sport suspension.
Maybe konis are out.
So b12 or kw SC. Almost 600 price diff.
Which are better for dd and overall improved handling. Maybe 1 or 2 track days

cvc 22349a · 02-07-2015, 09:54 AM

I haven't driven a car with B12, but if I was going back to a spring/shock combo it'd probably be that suspension or just Koni Sports with oem sport springs.
Handling- KW SC as this suspension has higher spring rates and lowers the cog more if desired. DD- maybe B12 because it's not a coilover strut and Bilsteins will last longer. I don't know about the B12 ride quality. Bump absorption is nice with KW struts but the car moves around more over undulating surfaces due to stiffer springs.

cpie168 · 02-07-2015, 11:58 AM

Are Koni Sports comparable to the Bilsten B12 shocks?

parabmw · 02-28-2015, 08:22 PM

Anyone use r spec swift springs with b8?
How would the ride and drop compare to b12?

02-06-2015, 10:49 PM	#1
parabmw Major 169 Rep 1,039 Posts Drives: 2018 m4 Join Date: Aug 2013 Location: canada iTrader: (0)	kw SC vs b12 vs koni/r spec swift B12 good value koni adjustable more expensive Kw SC more expensive also height adjustment All have linear springs I think. Which is recommended by users?
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02-06-2015, 11:19 PM	#2
cvc 22349a Colonel 164 Rep 2,556 Posts Drives: 335i Join Date: Sep 2007 Location: SF Bay iTrader: (11)	Ha! I'm thinking you've done your research and will have to decide for yourself. All three sound like good options for a sporty dd. Swift will have the least amount of shock travel, which means something to me. __________________ 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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02-07-2015, 08:03 AM	#3
parabmw Major 169 Rep 1,039 Posts Drives: 2018 m4 Join Date: Aug 2013 Location: canada iTrader: (0)	I prefer a small drop 10mm over sport suspension. Maybe konis are out. So b12 or kw SC. Almost 600 price diff. Which are better for dd and overall improved handling. Maybe 1 or 2 track days
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02-07-2015, 09:54 AM	#4
cvc 22349a Colonel 164 Rep 2,556 Posts Drives: 335i Join Date: Sep 2007 Location: SF Bay iTrader: (11)	I haven't driven a car with B12, but if I was going back to a spring/shock combo it'd probably be that suspension or just Koni Sports with oem sport springs. Handling- KW SC as this suspension has higher spring rates and lowers the cog more if desired. DD- maybe B12 because it's not a coilover strut and Bilsteins will last longer. I don't know about the B12 ride quality. Bump absorption is nice with KW struts but the car moves around more over undulating surfaces due to stiffer springs. __________________ 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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02-07-2015, 11:58 AM	#5
cpie168 Major 173 Rep 1,117 Posts Drives: 2010 E90 328i 6MT ZSP BSM Join Date: Mar 2014 Location: K/W and GTA, Ontario, Canada iTrader: (1)	Are Koni Sports comparable to the Bilsten B12 shocks?
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02-28-2015, 08:22 PM	#6
parabmw Major 169 Rep 1,039 Posts Drives: 2018 m4 Join Date: Aug 2013 Location: canada iTrader: (0)	Anyone use r spec swift springs with b8? How would the ride and drop compare to b12?
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