I did all the bushes on my escort s2 for under 200 from speed shack, flo flex I think. Not as neater fit as say powerflex but they fitted ok with a bit of tweaking. If anything the road noice was reduced, the car handled a hell of a lot better, much tighter and precise, instead of a rattle when you hit a bump it was more of a solid clunk, just felt more soloid allround.
Its one of those mods which doesnt give you power but makes the car so much more fun to drive and gives you a lot more confidence.
Raj