JdSwiper

iTrader: (4)

So I'm looking to lower my IS 250 using bc coilovers and swift springs so I'm looking to see what everyones experiences with this set up has been. Any thumps or vibrations.. Etc

jdmSW20

iTrader: (12)

ive heard some instances people speaking of clunking. but me personally i havent heard that since ive owned BC's at all

mike33

iTrader: (1)

I have the bc coils with standard springs, never a klunk or any noise and it rides great...

jdmSW20

iTrader: (12)

yeah agreed and i have BC coils on both my cars right now and havent ever heard a sound. but i wished i had gotten the swift spring option so on that i say do it.

laobo979

iTrader: (5)

I heard good thing with these setup. I know a local guy with an isf with that setup up and love it. As far as vibration that an awd thing. Some people can deal with it others can't. It also depends on how low you go with it. Just make sure the spring load is set and not lose. Something that will cause clunking from moving.

CircuitMS

iTrader: (51)

Its not that the BCs cause a vibration but there have been issues in the past with any coilover system or lower springs on the AWD cars (Lexus). Some guys had slight vibrations at idle. Apparently it is something to do with how the factory axles are setup. We do a ton of suspension setups and specifically the BCs and I rarely ever heard anyone get back to me about a vibration on their AWD. If you do end up getting a vibration with whatever kit you do I've heard that you can play with the height and it will get rid of the noise. Let us know if you have any questions or need anymore suggestions.

-Paul @ CMS

JdSwiper

iTrader: (4)

I wasn't implying that it was the paticular coilover that cause the noise and vibration but that i heard the bc coilover paired up with the Swift upgrade has had some good reviews on the AWD system but I'm starting to think it depends on the paticular vehicle.