hi to all great stuff and very smart people here. my question is i found springs on e bay brand new kyb original Mercedes spring and mounting plate for 90.00 each. part no.a 163 320 23 13 updated part. bilstein shocks 160.00 each total 250.00. my shop here in texas will do the pair for 50.00 each total 300.00. the original shock and springs cost 320.00. are the kyb on ebay quality? reading your posts i have not found any body going this way your getting the best rear shock and spring upgrade my ml has 113000 on it and they need shocks. but now your getting brand new springs instead of just upgrading shocks wouldn't this be a better way to go. im just would like some info on this for other people that might want to go this way as im looking to go this way