ARROW Racing Header for Yamaha YZF-R 125 2019-, without catalyst

Product details

ARROW header (without catalyst), made of stainless steel.
For Yamaha
YZF-R 125, type RE39, model year 2019-
MT125, type RE39, model year 2020-
Can only be fitted in conjunction with ARROW silencer AR-51518/AR-51004.

General description

Passion for great sound and a wide range of models – that's what Arrow stands for. With extensive expertise gained from years of data collection and collaboration with racers from MotoGP, WSBK and other classes, Arrow exhaust systems are continuously developed and optimised in line with technological advancements and current trends.

Collectors and tubes are the key to optimal exhaust gas flow and the intended power, performance development. CNC-milled components and welds that do not reduce the inner diameter contribute significantly to this. Thus, the diameter of the tubes, bend radii, welds and their exact placement and execution, as well as the guide of the header pipes, are optimally adapted to each bike. Depending on the engine and firing order, the optimal layout of the header, connectors, and mid-pipes up to the silencers is developed through countless dyno runs.

Arrow headers are manufactured from a special steel alloy (racing versions also from high-quality, lightweight titanium). V2A steel is highly temperature-resistant and can be easily mechanically formed. It has high resistance to humidity, water, and weak alkalis, such as those used in motorcycle care products. Due to its lower weight, the titanium header variant is used in racing.

For legal operation, a version with an integrated catalyst is also available for many motorcycles. Aftermarket catalysts for exhaust gas purification are also available.

Features:
- Manufactured from stainless steel or titanium (0.8 mm wall thickness)
- Flow-optimised
- Optimal power, performance development in conjunction with various silencer variants
- Available for numerous models