Kossienutter
I had a set of gaz coilovers fitted to my saph.
3 seals burst in less than a month. i have the shocks still so can get you some pics if you want to see age/condition
They have poor customer service and you have to pay a courier to return them for them to check them over then tell you if they are going to repair them or not as its at their discression. The company i got them from said they had to be sent to gaz by myself.
I gave up with them in the end and fitted new konis. Beleive me they are so much better.
I would never buy another gaz product.
Your choice is yours m8. good luck in which road you choose.
Regards, Stephen