There's a few E9X and E46 coilover DIYs out there. I don't think the procedure would be much different.
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2015 F15 X5 25d Space Gray | Pure Excellence | Dakota Leather/Brushed Aluminium | Anthracite Head Liner | Fender Flares | Connected Drive + Real Time Traffic
2012 F30 335i Sapphire Black
2006 E92 325i Titan Silver
2000 E46 318i Cosmos Black
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