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Wagner Tuning Pro-Series 18.8 Cylinder Head Stud Set (BMW F87 M2, F8X M3/M4)

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$749.00
749.00  
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SKU: 126981
MPN: P102081410

Product Details

Description

Replacing the original cylinder head screws with high-strength Pro-Series 18.8 studs.
This is necessary when making significant performance increases, as the original cylinder head screws elongate during operation, and the cylinder head can lift off. The Pro-Series 18.8 stud bolts with a tensile strength of 1850 N / mm² provide a solution; these stud bolts do not have to be replaced after dismantling but can be reused.

The Pro-Series 18.8 sets are high-strength stud bolts manufactured in Germany. Special steel is used, which, after tempering, has a tensile strength of 1850 + N / mm².

All threads are formed and not cut as usual. The so-called rolling of threads can increase the strength of the tooth flanks by around 30%. All Pro-Series products are supplied with a nickel coating. Pro-Series stud bolts have a hexagon socket drive on the head side for screwing in the stud bolts.

Due to a cone on the engine block side of the bolt, these are not supported on the thread flanks when the nuts are tightened but in the bore of the thread in the engine block. This support protects the cables when racing engines are frequently rebuilt.

Pro-Series advantage over other manufacturers is the nuts and washers included in the set; these also have a tensile strength of 1850 N / mm².

Product Features

- Tensile strength of 1850 N / mm²

- Will stop the head from lifting at high power levels

- Manufactured in Germany

installation

Professional Installation Is Highly Recommended!

warranty

Fitment Guide

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Fitment Guide
Start Year End Year Make Model Submodel Cyl Lit Fuel FuelDel ASP EngDesg Notes
2019 2021 BMW 2 Series M2 Competition Coupe
M2 CS Coupe
L6 3.0 GAS FI T S55  
2015 2018 BMW 3 Series M3 Sedan L6 3.0 GAS FI T S55  
2015 2020 BMW 4 Series M4 Coupe
M4 GTS Coupe
M4 CS Coupe
L6 3.0 GAS FI T S55  
2015 2020 BMW 4 Series M4 Convertible L6 3.0 GAS FI T S55  

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