Seriously do NOT buy powerflex bushes for a 10 year old road car. What happens is the vibration and flex are transfered to components further up the suspension chain. This means you 10 year old welds, which may have a small element of wear/corrosion in them take all the hit of this flex and of course do not stand up to it.
I learnt about this two years ago from the Jaguar Drivers Club after a bad accident occured to an XJS owner. During the investigation it was found that they had installed powerflex bushes. Other cars were then checked and found to have similar cracks/stresses not found on cars with OE bushes. This was also found when comparing other makes of cars too.
Powerflex bushes are very good, I am not saying they arent, but you need ot have them in the right application, i.e. a fully strengthened track car or where you are inspecting the vehicle on a regular basis.
Also, these arms on the Punto are not designed to have the bushes replaces, thats why they give you the whole unit. And for £56 inc VAT and a 60 minute job instead of a £30 bush then 3 hours of struggle...
Alfa Romeo 156 2.4 JTD (210BHP)
Fiat Punto JTD (130BHP)
Fiat Barchetta
http://www.angeltuning.co.uk
http://www.bravo-guide.co.uk THE Fiat Bravo site