Arrow 71205CKZ Competition titanium full exhaust system for BMW S1000RR K67 360° — drag me
4.30 k g
02 · Data & docs

The facts.

Technical data
Part Number71205CKZ
BrandArrow
System TypeFull exhaust system (complete replacement)
Total Weight4.30 kg
Header MaterialTitanium
Silencer MaterialTitanium
End Cap MaterialCarbon
Internal ComponentsTitanium
Silencer Length300 mm
Outlet Diameter58 mm
DescriptionThe whole story

Engineered exclusively for race use, the Arrow 71205CKZ Competition full exhaust system is a factory-grade titanium installation built to meet the performance demands of the BMW S1000RR K67 across the 2019–2026 model range. At just 4.30 kg complete, it strips meaningful mass from the motorcycle while delivering the sharp throttle response and unrestricted exhaust flow that track days and circuit racing require.

Key Features

  • Race-use only homologation — designed and certified exclusively for closed-circuit competition, not for road use.
  • Titanium header construction provides outstanding heat resistance, structural rigidity and significant weight savings over steel alternatives.
  • Titanium silencer body with carbon end caps combines minimal mass with a premium, purposeful aesthetic.
  • Titanium internals deliver long-term durability under sustained high-heat race conditions.
  • Removable dB-killer included, allowing sound output to be adjusted to circuit noise regulations without additional tooling.
  • Total system weight of just 4.30 kg contributes directly to improved power-to-weight ratio, agility and chassis balance.

Race Compliance and Intended Use

The 71205CKZ carries a race-use only designation — it is not type-approved for road use and must not be fitted to any machine operated on public roads. This classification is a deliberate product choice: Arrow has optimised every dimension of this system for unrestricted performance rather than road-legal noise and emissions limits. Riders competing in track days or club-level racing should verify that their circuit accepts race-only exhausts and that the dB-killer is fitted where noise limits apply.

Construction and Materials

The full system uses titanium throughout — header, silencer body and internal components — chosen for its exceptional strength-to-weight ratio and resistance to the thermal cycling that repetitive hard riding produces. Carbon end caps reduce rotational and unsprung mass at the silencer tip while providing a visual finish that suits the aggressive character of the S1000RR. The 300 mm silencer length and 58 mm outlet diameter have been selected to optimise gas velocity across the BMW's rev range, supporting mid-range response as well as peak power at the top end.

Setup Recommendation

To realise the full performance potential of this system, a dedicated ECU remap or custom mapping session is strongly recommended. The unrestricted flow characteristics of the Competition system will alter the air-fuel ratio relative to the stock exhaust, and a properly developed map ensures optimal fuelling, throttle response and reliability under race conditions.

Fitment and Compatibility

  • BMW S1000RR K67 — model years 2019, 2020, 2021, 2022, 2023, 2024, 2025, 2026

Specifications

Attribute Detail
Part Number 71205CKZ
Brand Arrow
System Type Full exhaust system (complete replacement)
Total Weight 4.30 kg
Header Material Titanium
Silencer Material Titanium
End Cap Material Carbon
Internal Components Titanium
Silencer Length 300 mm
Outlet Diameter 58 mm
dB-Killer Included, removable
Homologation Race-use only — not road legal
Fitment BMW S1000RR K67 (2019–2026)
FitmentWhich bikes this fits
  • BMW S1000RR K67 (2019–2026)
07 · Support

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08 · Paddock

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