Yep. I realized I have a bad front sensor (ordered from fcp along with the coilovers) and it is what was causing some of my previous headaches. But the real decision maker was jopecasa's broken axle ordeal. The system is really nice when it functions, but the second it goes bad, the car is undrivable. Or worse, it destroys other parts. Wife said she was tired of me tinkering with the SLS. LoL, decision made.

FCP. $995 with lifetime warranty was irresistible. They only have the 12k rear kit though and not the softer 8k kit. Hopefully the 12k spring rate won't be bouncy. Fortunately bc racing na sells the springs individually so can change later if I feel the need.

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2005 X5 4.4i Build 04/05 Maintenance/Build Log
Nav, Pano, Sport (Purchased 06/14 w/ 109,000 miles) (Sold 8/15 w/121,000 miles)

2006 X5 4.8is Build 11/05 Maintenance/Build Log
Nav, DSP, Pano, Running Boards, OEM Tow Hitch, Cold Weather Pckg (Purchased 08/15 w/ 90,500 miles)

2010 X5 35d Build 02/10
Nav, HiFi, 6 DVD, Sports Pckg, Cold Weather Pckg, HUD, CAS, Running Boards, Leather Dash, PDC, Pano (Purchased 03/17 w/ 136,120 miles)