so they are sh1tpart or G M springs then if there G M springs your ok but if sh1tpart you have just wasted £90 i have hered of them falling apart on the first trip out but i do hope they are G M springs
If they are britpart listen for the sound of the bugle and any old iorn shouted through a dodgy speaker, normally on a sunday morning and give them to the scrap man save yourself a lot of hard work.
Get some from gb springs in birmingham instead.