ARROW Header for Yamaha YZF-R 2019- MT125 2020- , with catalyst

Product details

ARROW Header (with catalyst), made of stainless steel, with streetn approval.
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 variety of models – that's what Arrow stands for. With extensive know-how 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 key to optimal exhaust gas flow and the intended power, performances development. CNC machined components and welds that do not reduce the internal diameter contribute significantly to this. Thus, the diameter of the tubes, bending 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, connecting pipes and intermediate pipes, right through to the silencers, is developed in countless dyno runs.

Arrow headers are made from a special steel alloy (racing variants also from high-quality, lightweight titanium). V2A stainless steel is highly temperature-resistant and can be easily mechanically formed. It has high resistance to humidity, water, and weak alkalis, as 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 catalytic converters for exhaust gas purification are also part of the range.

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