AST 2004-09/2010 BMW X3 Lowering Springs - 40mm/30mm 2004-bmw-330ci-esi2588069 We add a dust protection

We add a dust protection system to prevent unwanted dirt and particulate from coming in contact with the hardened chrome piston rod or getting into the valve packs

we recommend going resonated

it’s built for serious racers

Thanks to the composite material corrosion is prevented between the strut and perch ensuring long lasting height adjustability

rebuildable dampers

AST 2004-09/2010 BMW X3 Lowering Springs - 40mm/30mm 2004-bmw-330ci-esi2588069 We add a dust protectionThe AST Lowering Springs reduce your cars center of gravity while maintaining the comfort of OEM springs. Designed as a direct OEM replacement, they are vehicle specific and crafted with premium materials on top quality Wafios coiling machines. Their progressive design balances a lowered stance with enhanced performance. With compatibility across over 3,000 models from 1966 upwards, these springs suit a wide range of vehicles. Backed by a lifetime