Conversionsmart Ltd is the market leading supplier of BMW rear coil spring conversion kits. Covering the X5, X6, 5 Series Touring & GT models. If you dont see your model listed or need further info then please get in touch with your vehicle chassis number and we will do our very best to help. Each kit comes complete with all hardware to completely convert the rear air suspension to coil springs.

All of our spring kits are CE & ISO approved, and have full manufacturing traceability. Rest assured you are receiving the highest quality items for your vehicle. Please think twice before ordering the cheap unbranded Chinese kits that have started to appear on the market.

Need your item in a hurry for the weekend? We now offer Saturday delivery within mainland UK.

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