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Arrow Indy Race Slip-On Silencer Aluminium Dark – Aprilia RS 660 (2020–2024) 71929AKN

19,026.00 ฿

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Engineered for riders who demand race-derived performance on road and track alike, the Arrow Indy Race 71929AKN is a dedicated slip-on silencer for the Aprilia RS 660 (2020–2024). At just 2.23 kg, the dark aluminium canister with carbon end cap sheds meaningful weight over the stock unit while delivering the crisp throttle response and aggressive exhaust note the RS 660 platform deserves.

Key Features

  • Lightweight dark aluminium canister at 2.23 kg — a genuine weight saving over the standard exhaust
  • Carbon end cap adds a race-bred aesthetic and long-term durability
  • Stainless steel internals resist corrosion and maintain structural integrity under sustained high-rev use
  • Supplied with db-killer insert for legal road use — remove it on circuit for full acoustic effect
  • E-number type-approval included: fully Euro 5 compliant for road registration
  • Plug-and-play fitment for a straightforward installation with no cutting or welding

Race Performance & Track Credentials

The Indy Race designation reflects Arrow's motorsport heritage: the canister geometry is drawn directly from competition development, prioritising free-flowing exhaust gas evacuation at high engine speeds. Paired with the Arrow header pipe 71755, the slip-on becomes part of a complete Arrow system — an upgrade that unlocks a further step in mid-range punch and top-end pull. Arrow strongly recommends a dedicated ECU remap when running this silencer, particularly in full-system configuration, to realise the full gains in throttle response and peak output.

Build Quality & Materials

The canister body is constructed from dark-finished aluminium — a material choice that balances thermal performance with kerb appeal. The contrast carbon end cap is not merely decorative; carbon's low thermal conductivity protects the cap from heat soak during extended track sessions. Internal components in stainless steel ensure the silencer resists the aggressive temperature cycling that track use demands, session after session.

Road Legality

The 71929AKN carries a full E-number homologation and meets Euro 5 emissions standards, making it a straightforward, document-free upgrade for road-registered RS 660s. The included db-killer keeps noise output within legal limits for daily riding and technical scrutineering at noise-sensitive circuits.

Fitment & Compatibility

This slip-on silencer is designed exclusively for the Aprilia RS 660 across model years 2020 to 2024. It requires an Arrow header pipe for correct fitment — it is not compatible with the original Aprilia header. To build a full Arrow exhaust system, combine with the Arrow header 71755. Confirm fitment against your specific model year before ordering.

Specifications

  • Part number: 71929AKN
  • Type: slip-on silencer
  • Fitment: Aprilia RS 660, 2020–2024
  • Weight: 2.23 kg
  • Canister material: aluminium, dark finish
  • End cap material: carbon
  • Internal components: stainless steel
  • Total length: 270 mm
  • Inlet diameter: 54 mm
  • Outlet diameter: 58 mm
  • Approval: E-number homologated, Euro 5 compliant
  • db-killer: included
  • Compatible header: Arrow 71755
More guides on Slip-On Silencers →