Arrow Indy-Race Slip-On Silencer Aluminium Dark KTM RC 390 2022-2025 – 71957AKN
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We ship with DHL and FedEx — express on request. If an item is in stock, express delivery can often go out within 1 business day. Standard delivery takes about 2–5 business days domestically and usually around a week worldwide. Please check the available shipping options and delivery times in your cart, as we offer several carriers depending on the country.
Returns must be registered in advance by email and are possible in line with our cancellation policy (14-day return request + 14-day return window after approval). Please note: unregistered returns are not accepted. You'll find all details on conditions, exceptions and refunds in our cancellation policy.
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Homologated for public road use and engineered to liberate the KTM RC 390's full potential, the Arrow Indy-Race 71957AKN is a road-legal slip-on silencer that carries a full E-mark approval — so you ride with complete confidence on every road, every day. The dark anodised aluminium canister, stainless steel internals and carbon end cap deliver track-derived performance without compromising legal compliance.
Key Features
- E-mark road approval included — fully homologated for unrestricted street use on the KTM RC 390 2022-2025.
- DB-killer supplied as standard, allowing you to dial the sound level to suit road, touring or track-day use.
- Dark anodised aluminium canister saves weight at 2.49 kg while resisting corrosion and heat cycle after cycle.
- Stainless steel internal components ensure exceptional durability and long service life even under sustained high-revving use.
- Carbon end cap adds a purposeful, race-bred aesthetic that complements the RC 390's aggressive bodywork.
- Direct bolt-on fitment; combinable with an Arrow header to build a full Arrow exhaust system for maximum gains.
Build Quality & Performance
Arrow engineered the Indy-Race canister around a stainless steel internal structure, which maintains geometry and sound packing integrity even when subjected to the intense heat cycles typical of hard road riding and track days. The outer sleeve in dark anodised aluminium keeps mass low and eliminates the surface rust that blights steel canisters over time. A precisely profiled 45 mm inlet and 36 mm outlet, combined with a canister length of 250 mm, promote freer exhaust gas scavenging that sharpens throttle response and lifts mid-range and top-end output.
Road & Track Use
The included DB-killer inserts into the exit to bring noise output within legal limits for road use; remove it on closed circuits to open up the full Indy-Race sound. For riders seeking the maximum performance step, Arrow recommends pairing the 71957AKN with a compatible Arrow header and commissioning a dedicated ECU remap — the combination transforms the RC 390 into a sharper, more responsive machine on both road and track.
Fitment & Compatibility
This slip-on silencer is designed exclusively for the KTM RC 390, model years 2022 to 2025. It replaces the original silencer using the existing mounting points as a direct, bolt-on replacement. It can also be combined with an Arrow header pipe to form a complete Arrow exhaust system for enhanced performance gains.
Specifications
- Part number: 71957AKN
- Weight: 2.49 kg
- Canister length: 250 mm
- Inlet diameter: 45 mm
- Outlet diameter: 36 mm
- Canister material: dark anodised aluminium
- Internal material: stainless steel
- End cap material: carbon
- Approval: E-mark (road legal)
- DB-killer: included
- Fitment: KTM RC 390 (2022-2025)
| Part Number | 71957AKN |
|---|---|
| Fitment | KTM RC 390 (2022-2025) |
| Weight | 2.49 kg |
| Canister Length | 250 mm |
| Inlet Diameter | 45 mm |
| Outlet Diameter | 36 mm |
| Canister Material | Dark anodised aluminium |
| Internal Material | Stainless steel |
| End Cap Material | Carbon |
| Approval | E-mark (road legal) |
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