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Ferrea Valve Spring Kit KT4026 for the BMW N54 are engineered to overcome the most common performance-limiting issues: valve binding
G30 540i xDrive B58
55mm Exhaust Sport 270° Intake / 249° Exhaust 10
2009–2015 BMW F01/F02 750i/750Li
The lightweight titanium retainers boost durability and reduce valvetrain mass
BMW ARP Main Stud Kits Engine:S50B30 / S50B32 EURO Ferrea Valve Spring Kit KT4026Upgrading your engine for optimal performance and reliability requires top quality components. OEM hardware can potentially create weaknesses that can hinder your engine's full potential, especially if you're supercharging or turbocharging it. That's why we trust ARP, the world leader in fastener technology, for our engine upgrades. ARP Main Studs offer several benefits, including eliminating main cap walk and protecting engine block threads. These
US$ 14.95
US$ 174.39
US$ 174.39
US$ 112.14
