Catalytic Arrow Headers Kit 51003KZ - Yamaha YZF-R 125 (2008-2013)

Arrow 51003KZ Catalytic Header Kit – Yamaha YZF-R 125 (2008-2013)

The Arrow 51003KZ catalytic header kit in stainless steel is the homologated header system with catalytic converter designed for the Yamaha YZF-R 125 (2008-2013). Entirely made in Italy by Arrow Special Parts, this kit is mandatory for mounting Arrow Street Thunder silencers (51503AON and 51503AO) on the R125, ensuring full compliance with Euro 3 emission regulations and total road legality.

✓ Key Features

• ✓ Euro 3 homologated with catalytic converter – full compliance with European emission regulations
• ✓ High-quality stainless steel – corrosion and high-temperature resistance
• ✓ Reduced weight: only 1.25 kg – lighter than the original system
• ✓ 40 mm outlet diameter – optimized gas flow for 125cc engine performance
• ✓ Made in Italy – designed and manufactured by Arrow Special Parts
• ✓ Homologation certificate included – to be attached to the vehicle registration document

Technical Specifications

🔧 Specifications

Complete header kit with integrated catalytic converter. Header material in stainless steel. Outlet diameter 40 mm. Total weight 1.25 kg. Without DB Killer, without Lambda sensor, without CO sensor. Euro 3 homologated for road use: the product comes with an homologation certificate to be attached to the vehicle's registration document.

⚡ Arrow Silencer Compatibility

This header kit is mandatory for mounting the following Arrow silencers on the Yamaha YZF-R 125:

• 51503AON – Street Thunder Aluminum Dark
• 51503AO – Street Thunder Aluminum

The silencer is sold separately. For the complete homologated Arrow system, this header kit must be combined with one of the silencers listed above.

🏍️ Vehicle Compatibility

• Yamaha YZF-R 125 – year 2008
• Yamaha YZF-R 125 – year 2009
• Yamaha YZF-R 125 – year 2010
• Yamaha YZF-R 125 – year 2011
• Yamaha YZF-R 125 – year 2012
• Yamaha YZF-R 125 – year 2013

Please note: this kit is specific for the YZF-R 125 models from 2008-2013. For 2014 and later versions, Arrow produces a dedicated header with a different code. Please check the exact year of your motorcycle before purchase.

Who It's Perfect For

The Arrow 51003KZ header kit is an indispensable component for anyone wishing to mount an homologated Arrow silencer on their Yamaha YZF-R 125. Ideal for young motorcyclists, new riders, and enthusiasts who want to improve the sound and aesthetics of their R125 while maintaining full road legality thanks to Euro 3 homologation with a catalytic converter.

Warranty and Quality

Original product from Arrow Special Parts, Italian excellence in the production of motorcycle exhaust systems since 1985. Supplied with an homologation certificate for road use. Sold by Moon Bike S.r.l., an authorized dealer based in Cercola (NA). Fast and secure shipping throughout Italy and worldwide.

🛒 Order the Arrow 51003KZ header kit now and complete your R125's exhaust system!