AST 07/2013-10/2020 BMW 4 XDRIVE Lowering Springs - 30mm/25mm IPE EXHAUST 2% efficient filtering out all

2% efficient filtering out all of the most harmful air contaminants while allowing maximum flow

Included are 10 pre-installed grade-8 wheel studs

As with all KW su spension products our engineers develop vehicle specific parameters and spring specifications which undergo comprehensive testing on the Nurburgring Nordschleife and in our KW 7-post Driving Dynamic Test Center

0L 1994-1998 Ford Mustang with dyno-proven performance made possible thanks to fast-flowing mandrel bent 2

AST 07/2013-10/2020 BMW 4 XDRIVE Lowering Springs - 30mm/25mm IPE EXHAUST 2% efficient filtering out allThe 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