Hey soopamarcus,,,,1st questions 1st.
1/ I purchased the 83138's and the 83139's....Standard lowering springs.
2/Nothing is permanent. just got sick of the car looking like an Off-roader.
3/ All the measurements I stated in my original post relate to....O/S/F means,,,Right hand side front of the car,N/S/F means,,,Left hand side of the car ect....Basically N/S means a car parked (normally ),,,near side,,, next to the gutter and O/S means off or away from the gutter. I just wanted everybody to know what happened through the stages of lowering it. Springs go through a stage of settling down before they actually find there right ride height. Go back now and have a read,,,you will see that the car basically was lowered 35mm to the front and 25 at the rear. Thats about where I wanted it,,,so I'm Happy.
4/ No I didn't resize anything,,,,theres no need. I did replace the Rubber boots though.
5/ The ride comfort HAS to change,,,seems that these springs are most progressive,,,,I like them.
6/ I work in the Industry and expect Trade,,, They were very strict and wanted a valid Purchase Order which is far enough,,,,,My invoice shows Retail is $160 a pair,,,thats $320.00 Retail,,,,
Hope I helped,,,Confused about something,,,,just ask buddy.
Neil.