ARROW Header for Piaggio Vespa GTS125 2017-18, with catalyst

Product details

ARROW Header (with catalyst), made of stainless steel, with street approval
For Piaggio Vespa GTS 125, Type MA3A, Model Year 2017-18
Mounting only in conjunction with ARROW silencer AR-53528

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 key to optimal exhaust gas routing and the intended power, performances delivery. CNC-milled components and welds that do not reduce the internal diameter contribute significantly to this. The diameter of the tubes, bending radii, welds and their exact placement and design, 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 pieces, and mid-pipes up to the 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 possesses 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. Retrofit catalytic converters are also available for exhaust gas purification.

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