Akrapovic® S-B13R1-RC - Racing 4-1 Carbon Fiber Exhaust System

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Vehicle Fitment

BMWK1200R 2005-2008
K1200S 2005-2008
K1300R 2009-2015
K1300S 2009-2015

Product Details

Racing 4-1 Carbon Fiber Exhaust System by Akrapovic®. The Racing Line represents full step in the exhaust system tuning process and offers great balance between price and optimum performance. Racing performance exhaust systems are designed for riders that demand maximum performance from their motorcycle. The systems are lighter compared to the stock exhaust system and feature exceptional production quality and increased engine performance combined with pure racing sound output. A combination of racing materials like carbon fiber for the muffler outer sleeve and for the end cap give these exhaust systems racing touch.


  • Remember to check your local or state laws regarding vehicle noise restrictions.


Type: 4 into 1
Material: Carbon Fiber
Muffler Finish: Carbon Fiber
End Cap Finish: Carbon Fiber
Max Power Original: 156.8 (HP Imperial) / 159 (HP Metric) / 116.9 (kW) / 9750 (RPM)
Max Power Akrapovic: 165.9 (HP Imperial) / 168.2 (HP Metric) / 123.7 (kW) / 9900 (RPM)
Max Power Increase: 9.5 (HP Imperial) / 9.6 (HP Metric) / 7.1 (kW) / 9900 (RPM)
Max Torque Original: 96.3 (lb/ft) / 130.6 (Nm) / 8400 (RPM)
Max Torque Akrapovic: 98.5 (lb/ft) / 133.5 (Nm) / 8600 (RPM)
Max Torque Increase: 3.2 (lb/ft) / 4.3 (Nm) / 7150 (RPM)
Noise Original: 92 (dB) / 5125 (RPM)
Noise Akrapovic: 99 (dB) / 5125 (RPM)
Noise Increase: 7 (dB)
Weight Original: 9.3 (kg) / 20.5 (lb)
Weight Akrapovic: 5.1 (kg) / 11.2 (lb)
Weight Decrease: 4.2 (kg) / 9.3 (lb) / 45.2 (%)
Installation Time Min: 60


  • Designed to maximize horsepower and torque of your motorcycle
  • Made with meticulous attention to detail and unmatched craftsmanship
  • Designed to get the most out of your exhaust system

Its not just about peak power Akrapovic exhaust systems deliver increased performance throughout the entire rpm range. Increased power and torque result in much smoother ride. All Akrapovic exhaust system measurements are made on Akrapovic computer-controlled flowbenches.

A pioneer in its field, Akrapovic® is widely recognized as a highly innovative technology company. For over 47 years it has developed and manufactured exhaust systems that feature the highest level of design, performance enhancement, and an unmistakable deeply resonant exhaust sound. The company’s products are designed and manufactured for motorcycles and performance cars by a passionate and highly-skilled workforce of over 1000 employees using the latest technology, processes and finest materials. Akrapovic works with dozens of racing teams. Over 100 world champions have already relied on Akrapovic exhaust systems.

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Akrapovic® S-B13R1-RC - Racing 4-1 Carbon Fiber Exhaust System

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