BMW / Toyota B58 Valve Spring Kit by Ferrea

Ferrea valve springs effectively combat three critical issues that can compromise engine performance: binding, breakage, and valve float: 

• Binding occurs when valves fail to open or close properly, risking severe engine damage.
• Breakage can result in valves dropping into the combustion chamber, leading to catastrophic failures.
• Valve float, often caused by inadequate spring rates, results in power loss and combustion leaks at high RPMs.

These valve springs are meticulously heat-treated and stress-relieved, ensuring stability for high-lift and high-RPM applications while minimizing load loss. Ferrea also offers precision CNC-machined retainers, providing superior strength and stability to withstand rigorous racing demands.

To guarantee optimal performance, Ferrea Spring Seat Locators are crafted from robust 4140 chromoly alloy, ensuring precise tolerances and a flat, parallel spring pad. The hard Nitrided surface treatment enhances toughness and wear resistance, making them an excellent addition to your high-performance setup.

Upgrading to high-performance valve springs is essential for any serious racing engine. Stock valve springs often struggle with increased lift and RPMs, resulting in valve float and diminished power output. Ferrea’s high-performance valve springs, constructed from high-strength materials like chromoly steel, provide increased spring pressure at higher speeds, improving engine response, power, and reliability.

Addressing common valve spring challenges such as binding, breakage, and valve float is crucial for maintaining optimal engine performance. Upgrading to Ferrea’s high-quality valve springs ensures proper valve operation, maximizes engine power, and significantly reduces the risk of engine failure.

Installation requires the expertise of an engine builder.

BMW B58 Gen 1 Applications:

1 Series

2016-2019     F20/F21     M140i

2 Series

2016-2019     F22/F23     M240i

3 Series

2015-2019     F30/F31     340i / 340i xDrive
2016-2019     F34     340i GT / 340i GT xDrive

4 Series

2016-2020     F32/F33/F36     440i / 440i xDrive

5 Series

2016-2019     G30/G31     540i / 540i xDrive

6 Series

2017-2019     G32     640i GT / 640i GT xDrive

7 Series

2015-2019     G11/G12     740i / 740i xDrive

X3 Series

2017-2019     G01     X3 M40i

X4 Series

2018-2019     G02     X4 M40i

BMW B58 Gen 2 Applications:

3 Series

2019-Present     G20/G21     M340i / M340i xDrive

4 Series

2020-Present     G22/G23/G26     M440i / M440i xDrive

Z Series

2019-Present     G29     Z4 M40i

5 Series

2020-Present     G30/G31 LCI     540i / 540i xDrive

6 Series

2020-Present     G32 LCI     640i GT / GT 640i xDrive 

7 Series

2019-Present     G11/G12 LCI     740i / 740i xDrive

X3 Series

2020-Present     G01     X3 M40i

X4 Series

2020-Present     G02     X4 M40i

X5 Series

2018-Present     G05     X5 xDrive40i

X6 Series

2019-Present     G06     X6 xDrive40i

X7 Series

2018-Present     G07     X7 xDrive40i

ALPINA B58 Gen 2 Applications:

B3 Series

2020-Present     G20/G21     B3

B4 Series

2022-Present     G22     B4

B5 Series

2020-Present     G30     B5

XB7 Series

2020-Present     G07     XB7

Toyota B58 Gen 2 Applications:

A90 / A91 Supra

2020-Present     GR Supra 3.0    
2020-Present     GR Supra 3.0 Premium    
2021-Present     GR Supra 3.0 A91 Edition