ARROW Racing Exhaust Manifold for Piaggio Vespa Primavera 125 2014-16, without catalyst

Product Details

ARROW exhaust manifold (without catalyst), made of stainless steel.
For Piaggio Vespa Primavera 125/150, Type M81, Model Year 2014-16
Only in conjunction with ARROW silencer AR-53504AN/ANN.
street approval only in conjunction with retrofit catalyst AR-11010KZ

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, performance delivery. 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 manifold pipes, are optimally adapted to each bike. Depending on the engine and firing order, the optimal layout of the manifold, connection pieces, and intermediate pipes right up to the silencers is developed through countless dyno runs.

Arrow exhaust manifolds are manufactured from a special steel alloy (racing variants also from high-quality, lightweight titanium). V2A steel is highly temperature-resistant and can be mechanically deformed very well. It possesses high resistance to humidity, water, and weak alkalis, as used in motorcycle care products. Due to its lower weight, the titanium manifold 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 part of the range.

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