ARP Head Stud Kit - BMW M2/M3/M4 G8x S58 201-4705
£456.79
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ARP Head Stud Kit - BMW M2/M3/M4 G8x S58 201-4705
£456.79
Delivery, Returns & Stock Information
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Does this fit my car?
This product is compatible with the following models and year ranges:
Upgrade the cylinder head clamping on your high performance BMW S58 with this premium ARP Head Stud Kit. Designed specifically for the BMW M2/M3/M4, these high strength studs provide significantly greater and more consistent clamping force than the factory torque to yield head bolts.
An essential upgrade for tuned and high boost engines, particularly those running hybrid turbos, increased boost pressure or ethanol based fuels, the ARP kit helps maintain a reliable head gasket seal under extreme cylinder pressures while reducing the risk of cylinder head lifting.
Key Features
- Increased Clamping Force: Provides greater and more consistent clamping than OEM head bolts, helping maintain a reliable cylinder head seal under high boost and increased combustion pressures.
- High-Strength ARP2000 Steel: Manufactured from premium alloy steel and heat-treated to achieve a tensile strength of approximately 220,000 psi.
- Accurate & Consistent Preload: The stud design prevents the fastener itself from twisting during tightening, allowing more accurate torque readings and more even clamping across the cylinder head.
- Compact 12-Point Nuts: Supplied with compact 12-point nuts for excellent tool engagement and improved clearance around your engines valvetrain.
- Enhanced Fatigue Resistance: Threads are rolled after heat treatment for improved fatigue strength and greater resistance to thread damage compared with conventional cut-thread fasteners.
- Ideal for Tuned Engines: Particularly suited to high performance engine builds running increased boost, upgraded turbochargers and other performance modifications.
Technical Specifications
- Application: BMW S58 – BMW M2/M3/M4 G8x, X3M/X4M F9x
- Part Number: 201-4705
- Material: ARP2000
- Tensile Strength: 220,000 psi
- Nut Type: 12-Point
- Kit Includes: Head studs, parallel-ground washers, 12-point nuts and ARP Ultra-Torque assembly lubricant
Installation
For the best results, always follow the recommended ARP installation procedure, including the specified torque sequence and use of the supplied ARP Ultra-Torque assembly lubricant. Correct installation is essential to achieving the required fastener preload and ensuring maximum head gasket clamping performance.
A worthwhile upgrade for any high performance S58 engine where increased cylinder pressures demand stronger and more reliable head clamping.
