Arrow Thunder Aluminum Approved Silencer – Aprilia RX / SX 125 (2021-2024) 52510AO
$519.00
$674.00
-22%
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Arrow Thunder Aluminum Approved Silencer – Aprilia RX / SX 125 (2021-2024) 52510AO
$519.00
$674.00
-22%
Taxes included.
Shipping calculated at checkout.
Code: 52510AO
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This order ships outside the European Union and is subject to customs clearance in the destination country.
Export formalities and costs from Italy are on us and are already included in the price.
Import duties, taxes and clearance fees in the destination country are payable by the buyer. They are not included in the product price or the shipping cost, and we cannot calculate them: they are set by the customs authority of the destination country.
The carrier will not release the parcel until the recipient pays these charges. If the shipment is refused or the charges are left unpaid, the parcel is returned to us and shipping, return and any customs costs are deducted from the refund.
This order ships outside the European Union and is subject to customs clearance in the destination country.
Export formalities and costs from Italy are on us and are already included in the price.
Import duties, taxes and clearance fees in the destination country are payable by the buyer. They are not included in the product price or the shipping cost, and we cannot calculate them: they are set by the customs authority of the destination country.
The carrier will not release the parcel until the recipient pays these charges. If the shipment is refused or the charges are left unpaid, the parcel is returned to us and shipping, return and any customs costs are deducted from the refund.
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The Arrow Thunder aluminum exhaust (code 52510AO) is an approved slip-on exhaust specifically designed for Aprilia RX 125 and SX 125 from 2021 to 2024. Entirely manufactured in Italy by Arrow Special Parts S.p.A. (San Giustino, PG), it combines a lightweight aluminum body with a stainless steel internal structure and end cap, an integrated db-killer, and ECE R92.01 road homologation valid for EURO4/EURO5/EURO5+.
✓ Strengths
- Approved for road use – Reg. R92.01 (ECE-ONU) certification, EURO4/EURO5/EURO5+
- Aluminum body with stainless steel internal structure and end cap — lightweight and corrosion resistant
- Weighs only 2.3 kg — significant reduction compared to the original exhaust
- DB-Killer included and removable — complies with road noise limits
- Slip-on mounting directly on the original header — installation without modifications to the catalytic converter
- Stainless steel fitting included with 41 mm connection diameter
- 100% Made in Italy product — designed and manufactured in Arrow's facilities in Umbria
- Arrow official Aprilia technical partner — guaranteed compatibility and quality
Technical features
| Brand | Arrow Special Parts |
| Model | Thunder |
| Product code | 52510AO |
| Type | Slip-on muffler |
| Body material | Aluminum |
| Internal structure material | Stainless steel |
| End cap material | Stainless steel |
| Fitting material | Stainless steel |
| Body length | 350 mm |
| Connection diameter | 41 mm |
| Outlet diameter | 40 mm |
| Weight | 2.3 kg |
| DB-Killer | Yes, included and removable |
| Lambda probe | No |
| CO probe | No |
| Fixing | Welded attachment |
| Homologation | Yes – Reg. R92.01 (ECE-ONU) – EURO4/EURO5/EURO5+ |
| Production | Made in Italy – Arrow Special Parts S.p.A., San Giustino (PG) |
⚠️ Important notes:
• This is a slip-on exhaust: it mounts directly on the original header/catalytic converter of the motorcycle. The original catalytic converter is retained.
• The compatible vehicle type is KT. Homologation is valid only for the specified vehicle types and subsequent updates.
• The racing collector 52002PD (sold separately), which eliminates the catalytic converter, is also available. Using the racing collector makes the exhaust NOT approved and usable only on track/competition.
• Before assembly, always consult the Arrow assembly diagram to check for any additional fittings required.
• Assembly difficulty: intermediate — recommended for users with minimal experience or installation at an authorized workshop.
• This is a slip-on exhaust: it mounts directly on the original header/catalytic converter of the motorcycle. The original catalytic converter is retained.
• The compatible vehicle type is KT. Homologation is valid only for the specified vehicle types and subsequent updates.
• The racing collector 52002PD (sold separately), which eliminates the catalytic converter, is also available. Using the racing collector makes the exhaust NOT approved and usable only on track/competition.
• Before assembly, always consult the Arrow assembly diagram to check for any additional fittings required.
• Assembly difficulty: intermediate — recommended for users with minimal experience or installation at an authorized workshop.
Vehicle compatibility
| Brand | Model | Year | Vehicle type |
|---|---|---|---|
| Aprilia | RX 125 | 2021 | KT |
| Aprilia | RX 125 | 2022 | KT |
| Aprilia | RX 125 | 2023 | KT |
| Aprilia | RX 125 | 2024 | KT |
| Aprilia | SX 125 | 2021 | KT |
| Aprilia | SX 125 | 2022 | KT |
| Aprilia | SX 125 | 2023 | KT |
| Aprilia | SX 125 | 2024 | KT |
Related products and accessories
- Arrow Racing Collector 52002PD — steel collector that replaces the original catalytic converter. Usable only on track/competition. Combined with 52510AO, it forms the complete racing exhaust.
- Replacement Arrow DB-Killer — in case of loss or damage to the original db-killer included.
Who is it perfect for
The Arrow Thunder aluminum exhaust is ideal for owners of Aprilia RX 125 and SX 125 (2021-2024) who want to improve the sound and performance of their exhaust while maintaining full road legality. Perfect for those looking for a lightweight, durable, and racing-designed exhaust, with the guarantee of an approved Made in Italy product that can be installed without modifying the original header.
🛡️ Warranty and quality
Original Arrow Special Parts product, official Aprilia technical partner. Supplied with homologation certificate and assembly instructions. Moon Bike S.r.l. is an authorized Arrow dealer based in Cercola (NA). All exhausts are covered by the manufacturer's warranty and comply with current European regulations.
Original Arrow Special Parts product, official Aprilia technical partner. Supplied with homologation certificate and assembly instructions. Moon Bike S.r.l. is an authorized Arrow dealer based in Cercola (NA). All exhausts are covered by the manufacturer's warranty and comply with current European regulations.
Frequently asked questions
Shipping times +
Shipping within 24-48 working hours in Italy. Tracking via SMS/email. Free pickup at our store in Cercola (NA), ready within 1 hour.
Returns and refunds +
You have 14 days from delivery to return the item without giving a reason. Free returns for faulty items. Full details
Payment methods +
Credit cards (Visa, Mastercard, American Express), PayPal, Apple Pay, Google Pay, Shop Pay, Klarna (pay in 3) and cash on delivery.
Warranty and authenticity +
All products come with a 24-month legal warranty. We are an Official Piaggio Group Dealer: original spare parts are certified with a verifiable OEM code.
Technical support +
Our technical team is available on WhatsApp +39 392 456 1248 Mon-Fri 9:00–13:30 / 14:30–18:00 (Italian time), or by email.