
The facts.
| Brand | Arrow |
|---|---|
| Part number | 71755KZ |
| Component type | Header with integrated catalyst |
| Material | Stainless steel |
| Weight | 3.7 kg |
| Emissions compliance | Euro 5 (E-number approved) |
| Fitment | Aprilia RS 660 (2020–2024) |
| Compatible slip-on | Arrow 71929 |
DescriptionThe whole story▼
Designed exclusively for the Aprilia RS 660 from 2020 to 2024, the Arrow header 71755KZ is crafted from premium stainless steel and features an integrated catalyst to meet Euro 5 emissions standards — making it a fully street-legal upgrade that slots in cleanly with your daily ride. Whether you use it as a standalone improvement or pair it with a matching Arrow slip-on silencer to build a complete system, this header delivers noticeably sharper throttle response and improved power delivery from the outset.
Key Features
- Integrated catalyst ensures full Euro 5 compliance and legal road use across Europe without compromise.
- Premium stainless steel construction provides outstanding corrosion resistance and long service life, even under hard use in all weathers.
- Weighing just 3.7 kg, the header keeps unsprung and overall mass low without sacrificing structural integrity.
- Direct fitment to the Aprilia RS 660 (2020–2024) with plug-and-play installation — no cutting, fabricating, or specialist tooling required.
- Fully compatible with Arrow slip-on silencer 71929, allowing you to expand to a complete Arrow exhaust system with matched performance gains.
- A custom ECU remap is recommended to unlock maximum power and protect engine longevity when used as part of a full Arrow system.
Performance & Build Quality
Arrow's reputation for precision engineering is evident in every weld and bend of the 71755KZ. The stainless steel construction resists the extreme thermal cycling inherent to a parallel-twin header, maintaining its form and finish long after cheaper alternatives have discoloured and fatigued. On the road, the optimised primary pipe geometry supports improved scavenging across the RS 660's rev range, sharpening mid-range torque and extending top-end pull in a way that genuinely changes how the bike feels on a long A-road or a spirited mountain pass.
Building a Complete Arrow System
The 71755KZ is engineered as the foundation of a full Arrow exhaust system for the RS 660. Paired with the Arrow slip-on 71929, the combination transforms into a cohesive, performance-matched setup. Arrow recommends a dedicated ECU mapping solution alongside the complete system to ensure fuel delivery, ignition timing and throttle response are optimised in harmony — delivering measurable gains rather than marginal improvements.
Fitment & Compatibility
This header fits the following motorcycle:
- Aprilia RS 660 — model years 2020, 2021, 2022, 2023, 2024
Compatible Arrow slip-on silencer: 71929 (sold separately).
Specifications
| Attribute | Detail |
|---|---|
| Brand | Arrow |
| Part number | 71755KZ |
| Component type | Header with integrated catalyst |
| Material | Stainless steel |
| Weight | 3.7 kg |
| Emissions compliance | Euro 5 (E-number approved) |
| Fitment | Aprilia RS 660 (2020–2024) |
| Compatible slip-on | Arrow 71929 |
FitmentWhich bikes this fits▼
- Aprilia RS 660 (2020–2024)
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Measure your head circumference about one centimetre above your eyebrows and compare it with the size chart on this page. Between sizes? Choose the smaller one — the padding beds in with use.
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Most of our touring and sport helmets are Pinlock-ready and many include the insert. Check the ‘What’s in the box’ section on this page for this model.
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Take out the washable lining and hand-wash it in lukewarm water. Clean the shell and visor with a soft cloth and water only — never solvents.
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