AST Lowering Springs For BMW 5 540i/525D/530D 09/2016-07/2023, Front 45 , Rear 45 X3 M40i (G01)(P) BMW superseded oil lines on

BMW superseded oil lines on early vehicles and they are physically different

This design eliminates the use of gaskets or sealants

The X-pipe configuration balances exhaust pulses across both banks

and a lightweight construction for superior performance

AST Lowering Springs For BMW 5 540i/525D/530D 09/2016-07/2023, Front 45 , Rear 45 X3 M40i (G01)(P) BMW superseded oil lines onThe AST Lowering Springs for BMW 5 Series models 540i, 525D, and 530D (09 2016 07 2023) represent a precise engineering solution designed to enhance vehicle dynamics by lowering the center of gravity while maintaining a high level of ride comfort. Manufactured using advanced cold coiling techniques on premium Wafios coiling machines, these springs ensure consistent quality and durability. Their progressive spring rate design provides an optimal