ARROW Racing Header for Yamaha MT125 2014- , without catalyst

Product details

ARROW header (without catalyst), made of stainless steel, low version.
For Yamaha
MT125, Type RE11, model year 2014-16
MT125, Type RE29, model year 2017-
Only in conjunction with Arrow rear silencer AR-51513 (street approval only with retrofit catalyst AR-11016KZ !)

General description

Passion for great sound and a wide range 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, keeping pace with technological advancements and current trends.

Collectors and tubes are the key to optimal exhaust gas flow and the intended power, performance 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, their precise 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 up to the rear silencers, is developed through countless dyno runs.

Arrow headers are made from a special steel alloy (racing versions also from high-quality, lightweight titanium). V2A stainless steel is highly temperature-resistant and very easy to mechanically form. It offers 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. Retrofit catalytic converters for exhaust gas purification are also available.

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