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Ferrea High Performance Valve Spring Kit for BMW N55/S55
Ferrea High Performance Valve Spring Kit for BMW N55/S55
5150 Autosport - Corporate Logo
T#:23416526
Part#: FER-HPVSK-N55
Ships in 3 Business Days
$ 1,049.99 USD
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$ 1,049.99 USD
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Maximize your N55 or S55 engine's performance with Ferrea Valve Springs and Retainers, precision components crafted from chromoly alloy. These springs undergo special thermal treatment, ensuring exceptional durability even in extreme racing conditions. Addressing issues like valve binding, breakage, and float, Ferrea valve springs are meticulously heat-treated and stress-relieved, providing stability for high-lift and high-RPM racing engines while minimizing load loss. Precision CNC machined titanium retainers offer superior strength and stability. Ferrea's Spring Seat Locators, made from 4140 chromoly alloy, guarantee precise tolerances and a flat, parallel spring pad with a hard Nitride surface treatment for exceptional toughness and anti-wear characteristics. Please note that installation requires the expertise of an engine builder.
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BMW N55 S55 Ferrea High Performance Valve Kit
BMW N55 S55 Ferrea High Performance Valve Kit
5150 Autosport - Corporate Logo
T#:23416508
Part#: FER-HPVK-S55-T-3
Ships in 3 Business Days
$ 929.99 USD
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$ 929.99 USD
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Increase the power output of your N55/S55 engine with the high-performance Ferrea valve kit. Renowned as the industry's most reliable extreme-duty valves, they're meticulously crafted from aerospace-grade alloys, employing an exclusive two-step slow forging process for optimal grain flow and material structure integrity. A 48-hour heat treatment and stress-relieving process enhance molecular integrity. The valves feature avionics-quality hard chrome and a specially applied hard tip. Standard size: 32mm intake / 28mm exhaust, with a triple groove valve design. Compatible with factory valve locks ("Valve Keepers"), the kit includes 12x Intake Valves and 12x Exhaust Valves for a comprehensive engine upgrade!
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BMW S58 3.0L ARP Head Stud Kit - CA625+
BMW S58 3.0L ARP Head Stud Kit - CA625+
5150 Autosport - Corporate Logo
T#:22427036
Part#: ARP-HSK-S58-CA
Ships in 3 Business Days
$ 999.99 USD
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$ 999.99 USD
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BMW S58 3.0L ARP Head Stud Kit - CA625+ is the ultimate upgrade for the BMW S58 engine, specifically designed for high-performance models such as the F97 X3M, F98 X4M, G80 M3, G82 M4, G83 M4, and G87 M2. Manufactured by Turner Motorsport, this head stud kit ensures optimal engine reliability and performance.

  • Enhanced Strength: Featuring Custom Age 625+ material with a tensile strength of 260 ksi, this kit provides superior strength compared to factory bolts.
  • Prevents Head and Block Separation: Designed to handle increased boost levels and high-stress conditions, preventing potential head and block separation.
  • Precision Engineering: ARP’s advanced manufacturing process ensures that these head studs outperform standard factory bolts under extreme conditions.
  • Ideal for High-Performance Builds: Perfect for enthusiasts pushing the limits of their S58 engines, offering unparalleled durability and reliability.
  • Direct Fit: Specifically tailored for the turbocharged inline 6-cylinder BMW S58 engine, ensuring a seamless installation and optimal performance.
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Ferrea High Performance Valve Spring Kit - S58
Ferrea High Performance Valve Spring Kit - S58
5150 Autosport - Corporate Logo
T#:22427042
Part#: FER-HPVSK-S58
Ships in 3 Business Days
$ 1,099.99 USD
Free Shipping on orders $49 and up
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$ 1,099.99 USD
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Discover the Ferrea Valve Spring Kit for BMW S58 Engines Key Features: Premium Construction: Crafted from premium chrome-silicon steel wire, ensuring precise valve control at high engine speeds. Lightweight Durability: Titanium retainers enhance engine speed and reduce the risk of valve float. Engine-Specific Design: Spring seats are expertly tailored for your specific engine application, providing optimal support for the valve springs. Please note that while this kit is ideal for high-performance racing scenarios, its installation should be handled by experienced professionals to ensure proper operation. Seek expert guidance for a seamless installation and optimal performance.
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Ferrea High Performance Oversized Valve Kit - S58
Ferrea High Performance Oversized Valve Kit - S58
5150 Autosport - Corporate Logo
T#:22427041
Part#: FER-HPVK-S58+
Ships in 3 Business Days
$ 999.99 USD
Free Shipping on orders $49 and up
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$ 999.99 USD
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Elevate the performance of your S58 engine with Ferrea's valve kit. Renowned for their unmatched reliability and durability in extreme conditions. Crafted from aerospace-grade alloys, including the robust EV8-Z18, these valves undergo a meticulous two-step slow forging process to ensure optimal grain flow and minimize material structure damage. Maintaining molecular integrity is paramount, achieved through a rigorous 48-hour heat treatment and stress-relieving process. The valves boast avionics-quality hard chrome and a specially applied hard tip for enhanced performance. Featuring a standard size of 30.1mm for intake and 28.5mm for exhaust, their triple groove design ensures top-notch efficiency. Note that these valves require additional machining due to their overall larger diameter. ​The kit includes: 12x Intake Valves 12x Exhaust Valves Designed to seamlessly work with factory valve locks, Ferrea's valves are tailored to elevate your BMW S58 engine's performance to new heights.
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SuperTech High Performance Valve Spring Kit 75lbs - S58
SuperTech High Performance Valve Spring Kit 75lbs - S58
5150 Autosport - Corporate Logo
T#:22427032
Part#: SUP-HPVSK-S58-75
Ships in 3 Business Days
$ 999.99 USD
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$ 999.99 USD
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Upgrade your BMW S58 with Supertech's specialized valve spring kits, designed for enhanced control and reliability. Engineered for high-performance demands, these kits are favored by enthusiasts, engine builders, and race teams alike. Crafted from premium materials, the springs offer superior rates, improved valve control, and enhanced durability compared to stock alternatives. Tailored to specific BMW engine configurations, Supertech kits ensure proper valve operation, preventing float and maximizing power output without compromising reliability.
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Ferrea High Performance Valve Kit - S58
Ferrea High Performance Valve Kit - S58
5150 Autosport - Corporate Logo
T#:22427040
Part#: FER-HPVK-S58
Ships in 3 Business Days
$ 999.99 USD
Free Shipping on orders $49 and up
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$ 999.99 USD
Free Shipping on orders $49 and up
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SuperTech High Performance Valve Kit - S58
SuperTech High Performance Valve Kit - S58
5150 Autosport - Corporate Logo
T#:22427038
Part#: SUP-HPVK-S58
Ships in 3 Business Days
$ 1,099.99 USD
Free Shipping on orders $49 and up
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$ 1,099.99 USD
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SuperTech High Performance Valve Spring Kit 84 Lbs - S58
SuperTech High Performance Valve Spring Kit 84 Lbs - S58
5150 Autosport - Corporate Logo
T#:22427033
Part#: SUP-HPVSK-S58-84
Ships in 3 Business Days
$ 999.99 USD
Free Shipping on orders $49 and up
Add to Wish List
$ 999.99 USD
Free Shipping on orders $49 and up
Add to Wish List
Upgrade your BMW S58 with Supertech's specialized valve spring kits, designed for enhanced control and reliability. Engineered for high-performance demands, these kits are favored by enthusiasts, engine builders, and race teams alike. Crafted from premium materials, the springs offer superior rates, improved valve control, and enhanced durability compared to stock alternatives. Tailored to specific BMW engine configurations, Supertech kits ensure proper valve operation, preventing float and maximizing power output without compromising reliability.
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SuperTech High Performance Oversized Valve Kit - S58
SuperTech High Performance Oversized Valve Kit - S58
5150 Autosport - Corporate Logo
T#:22427039
Part#: SUP-HPVK-S58+
Ships in 3 Business Days
$ 1,099.99 USD
Free Shipping on orders $49 and up
Add to Wish List
$ 1,099.99 USD
Free Shipping on orders $49 and up
Add to Wish List
Elevate the performance of your S58 engine with Supertech's oversized valve kit, celebrated for its unmatched reliability and durability even in the most trying conditions. Boasting a size of 31.1mm for intake and 29.5mm for exhaust, their triple groove design ensures unparalleled efficiency. It's worth noting that these valves, being larger in diameter, necessitate additional machining. Included in this kit: 12x Intake Valves 12x Exhaust Valves
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