They were bought from motorworld,Apex for the exact model of car they have been fitted to.They have been fitted correctly ,do you think we should complain?.I think its as you say they are designed for a lighter engine,they have supplied the wrong ones
tbh the astra sits higher at the back as standard. fit lower springs on the back or loads of ice! mines lowered 50mm all round at the moment, but i;m thinking about buying a set of 60mm springs to chuck on the back. just an idea i guess.
mk2 s as standard have the nose of the car slightly lower if you look at one and even if you lower them in my experience of five of em they always sit the same unless you put some ice in the back to weigh down more.
mk3 s are known to do this alot so 40 front and 60 back makes em even, to be honest they look strange when they have a equal amount lowered because the back looks to low on its own if you cant see the front if you know what a mean. put an extra spare in mate that will do it. ha