Product Description
BMW S55 Cylinder Head Stud Set (Burnished) - Wagner Tuning P102081410.BR
This set replaces the original cylinder head screws with high-strength Pro-Series 18.8 studs. This is necessary when making large increases in performance, 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 to this. In addition, these stud bolts do not have to be replaced after dismantling, but can be reused.
Technical details:
Manufacturer part number: P102081410
Kit content:
14 stud bolt (M11)
14 nut (M11)
14 washers
assembly lube
assembly instructions
Tensile strength:
PS 18.8 steel
1850+ N/mm² (270.000+PSI)
High-quality materials and production
The Pro-Series 18.8 sets are high-strength stud bolts manufactured in Germany. A 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 or optional with a burnished protecting against corrosion in the long term, even under the toughest conditions. 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 threads 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.
Application list:
M2 F87 MY 2015-2021 370PS 410PS 450PS
M3 F80 MY 2014-2018 431PS 450PS 460PS
M4 F82/F83 MY 2014-2020 431PS 450PS 460PS 500PS
Wagner Tuning is a German-based performance engineering company renowned for its high-quality turbocharging components, specializing in performance intercoolers, downpipes, and exhaust systems. Founded with a focus on precision, durability, and motorsport-grade performance, Wagner products are engineered in-house and extensively tested using CAD flow dynamics, dyno validation, and real-world racing applications. Known for their OEM+ fitment and industry-leading thermal efficiency, Wagner Tuning is a top choice for enthusiasts looking to maximize airflow, reduce charge temps, and unleash reliable power gains — especially in turbocharged European platforms like BMW, Audi, VW, and Mercedes.
