
The facts.
| Brand | Arrow |
|---|---|
| Part Number | 71207CP |
| System Type | Full exhaust system (complete) |
| Material | Titanium (header, silencer, end caps, internals) |
| Total System Weight | 3.10 kg |
| Silencer Length | 250 mm |
| Outlet Diameter | 68 mm |
| Fitment | BMW M1000RR K66 (2021-2026) |
| Homologation | Race use only — not road legal |
| DB-Killer | Included, removable |
DescriptionThe whole story▼
Developed exclusively for the BMW M1000RR K66, the Arrow Pro-Race full exhaust system 71207CP is a dedicated race-use assembly engineered to extract every last fraction of performance from the S1000RR-derived inline-four. Built entirely from titanium — header, silencer body, end caps and internals — this complete system tips the scales at just 3.10 kg, delivering a meaningful reduction in unsprung and overall mass without a single compromise on structural integrity or heat resistance.
Key Features
- Race-use only homologation — purpose-built for track use, unrestricted by road-noise or emissions legislation, letting the engine breathe freely at every rev.
- All-titanium construction throughout: header, slip-on silencer body, end caps and internal components for exceptional heat dissipation and long service life under sustained track conditions.
- Total system weight of just 3.10 kg, contributing directly to improved power-to-weight ratio and sharper chassis response on the M1000RR K66.
- Removable DB-Killer included — fit it for controlled noise environments, remove it when regulations allow for unrestricted exhaust note and maximum flow.
- 250 mm silencer length with a 68 mm outlet diameter, dimensioned specifically for the K66 platform to ensure optimal exhaust scavenging.
- Custom ECU mapping strongly recommended to unlock the full performance and throttle-response gains this system is capable of delivering.
Construction & Performance
Every component of the 71207CP is fabricated from aerospace-grade titanium, a material chosen for its unrivalled combination of tensile strength, resistance to the extreme thermal cycling of race use, and minimal weight. The titanium header feeds directly into the titanium silencer, maintaining consistent exhaust gas velocity across the entire rev range and producing the sharp, linear throttle response that competitive lap times demand. The titanium end caps and internal parts share the same specification, ensuring the whole system ages uniformly even under the punishment of repeated track sessions.
Track Application
This system carries race-use only status — it is not approved for use on public roads and is supplied without any road-homologation documentation. It is the correct choice for BMW M1000RR K66 owners competing in track days, club racing or circuit championships where weight savings, unrestricted exhaust flow and consistent wide-open-throttle performance define the margin between podium and pack. The removable DB-Killer broadens its versatility across noise-sensitive circuits without requiring a second silencer.
Fitment & Compatibility
The Arrow Pro-Race full exhaust system 71207CP is a direct, bolt-on fitment for the following model:
- BMW M1000RR K66 — model years 2021, 2022, 2023, 2024, 2025, 2026
No modification to the mounting points or subframe is required. A dedicated ECU remap is recommended to realise the full power and throttle-response potential of this installation.
Specifications
| Brand | Arrow |
|---|---|
| Part Number | 71207CP |
| System Type | Full exhaust system (complete) |
| Material | Titanium (header, silencer, end caps, internals) |
| Total System Weight | 3.10 kg |
| Silencer Length | 250 mm |
| Outlet Diameter | 68 mm |
| Fitment | BMW M1000RR K66 (2021-2026) |
| Homologation | Race use only — not road legal |
| DB-Killer | Included, removable |
FitmentWhich bikes this fits▼
- BMW M1000RR K66 (2021–2026)
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