solid subframe bushings vs. solid Subframe Bushing Collars

[s14 drftwayz]

i really want to know whats the difference between the two... i wanna buy some solid bushings but i dont know which one is best.

1. solid subframe bushings were its Required to Cut out stock Old Subframe Bushings, Included outer Metal Rings.
http://i.ebayimg.com/07/%21BgtFnv%21BWk%7E$%28KGrHqEOKkMEr%29l%286YPHBLGVi NHpFw%7E%7E_35.JPG

2.solid Subframe Bushing Collar were u Just loose the bolts that hold the subframe to the chassis, slip in the upper collar and bolt the lower one in place.
http://img39.imageshack.us/img39/4752/150blue.jpg

the first one seems a lot of more work but if its work better and make it more solid than the other id rather do that, but if they are both the same id rather just go with the collar

does any have any experience of both of these please let me know

[eklips3]

from what i've been informed from fellow zilvians , it all depends on what the condition is of the bushings that are in your subframe right now.

if they are still in decent shape , use the inserts , if they are worn and torn then the solid bushings are what you need.

[90hatchie]

if your subframe bushings are shot.....collars wont fix it
do it right once

[hOngsterr]

just go solid all around.
spl v2!

[tacotacotaco]

I have nismos with collars on my dd and solids on my track car.

[s14 drftwayz]

I have nismos with collars on my dd and solids on my track car.

how much were the nismos with collars and where did u buy them