The B9 S4/S5 stock system limits your car to its potential in power and sound
Silicon Couplers With Oil Resistant Lining
while reducing drone inside the vehicle
+ Computer controlled valve limits noise during low speed driving
With the MAD N55 Intake installed
BMW G80 M3 & G82/G83 M4 Titanium Deluxe Billet Engine Dress Up Hardware Kit BMW E9X M3 The B9 S4/S5 stock systemTitanium BMW G8x 2020+ Deluxe Billet Dress Up Hardware Kit (M3 M4) This 100+pc. kit replaces the OEM hardware with billet Titanium Beauty Washers & titanium socket head bolts GR 5 Titanium Anodized in house Kit includes fasteners for: Fenders, Fender Braces, Expansion Tank, LH Strut Sensor, Front Bumper, Hood Locking Hooks, Headlights, Hood Locking Latches, Front Radiator Cover (by bumper), Strut Bolts, Radiator Support Front Brace, Strut Bar, Front