⟲ 360° — drag meThe facts.
| Brand | Arrow |
|---|---|
| Part Number | 71929PK |
| Fitment | Aprilia RS 660 (2020-2024) |
| Type | Slip-on silencer |
| Canister Material | Titanium |
| End Cap Material | Carbon fibre |
| Internal Components | Stainless steel |
| Weight | 1.83 kg |
| Overall Length | 270 mm |
| Inlet Diameter | 54 mm |
DescriptionThe whole story▼
Certified for road use across all Euro 5 markets, the Arrow Indy Race 71929PK brings genuine race-bred engineering to the Aprilia RS 660 without compromising legal compliance. The titanium canister weighs just 1.83 kg, the carbon end cap adds a motorsport-grade finish, and the included db-killer keeps it street-legal from the moment it leaves the box.
Key Features
- Euro 5 approved with E-number homologation — fully road-legal across Europe straight out of the box
- Titanium canister at only 1.83 kg delivers a meaningful weight saving over the stock unit without sacrificing durability
- Carbon end cap pairs with the titanium body for a purposeful, track-inspired aesthetic that suits the RS 660's aggressive styling
- Stainless steel internals resist corrosion and heat fatigue across tens of thousands of kilometres
- Supplied with db-killer for compliant road use; remove it on track for a more aggressive exhaust note
- Plug-and-play fitment — no cutting, no welding, no specialist tooling required
Road Use and Legal Compliance
Arrow's E-number approval means the 71929PK meets Euro 5 noise and emissions standards. Fitting it does not invalidate your road registration, and it will pass roadside technical inspections when the db-killer is installed. For riders who want to stay on the right side of the law without sacrificing character, this is the defining reason to choose the Indy Race over an unapproved race-only alternative.
Build Quality and Materials
The outer sleeve is formed from aerospace-grade titanium — inherently corrosion-resistant, lighter than steel and visually distinctive with its characteristic heat-tinted finish. The carbon fibre end cap is not cosmetic trim; it is a structural component that insulates the outlet and sheds heat efficiently. Inside, stainless steel baffles and packing components ensure the silencer performs consistently whether the RS 660 is used for a daily commute or a full track day.
Expanding to a Full System
The 71929PK is a slip-on and must be used with an Arrow header pipe. It is designed to mate directly with the Arrow header 71755. Combining both components creates a complete Arrow exhaust system that improves throttle response, broadens the mid-range torque curve, and reduces total system weight further. Arrow and Inter-Pace recommend having a dedicated fuel map loaded when running the full system to unlock the maximum performance benefit.
Fitment and Compatibility
- Aprilia RS 660 — model years 2020, 2021, 2022, 2023, 2024
- Compatible header: Arrow 71755 (required for fitment; not included)
- Connection diameter: 54 mm inlet / 58 mm outlet
- Overall silencer length: 270 mm
Specifications
| Part Number | 71929PK |
|---|---|
| Weight | 1.83 kg |
| Canister Material | Titanium |
| End Cap Material | Carbon fibre |
| Internal Components | Stainless steel |
| Overall Length | 270 mm |
| Inlet Diameter | 54 mm |
| Outlet Diameter | 58 mm |
| Homologation | Euro 5, E-number road approved |
| db-Killer | Included |
| Compatible Header | Arrow 71755 |
FitmentWhich bikes this fits▼
- Aprilia RS 660 (2020–2024)
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