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Arrow was founded in 1985 in Italy by Giorgio Giannelli to make high performance exhaust systems. The company's first association with motorsports success was with Belgian rider Jobé winning the 500 cc Motocross World Championship. Since 2000 Arrow parts have been used on bikes that won 20 World Titles, in SBK, SS, MX and Supermoto. [1]
The layout of a 4-2-1 system is as follows: four pipes (primary) come off the cylinder head, and merge into two pipes (secondary), which in turn finally link up to form one collector pipe. [2] Compared with a 4-1 exhaust system, a 4-2-1 often produces more power at mid-range engine speeds (RPM), while a 4-1 exhaust produces more power at high RPM.
Akrapovič d.d. (Slovene pronunciation: [aˈkrapɔʋitʃ]) is a Slovenian manufacturer of exhaust systems that began in 1990 in the motorcycle market, and expanded into automobile exhausts in 2010. [ 2 ] [ 3 ] A global exhaust supplier in motorcycle sport , [ 4 ] [ 5 ] Akrapovič exhausts are used on motorcycles in Moto GP , [ 6 ] superbike ...
Exhaust heat wrapping has been used for many years to improve performance and avoid burns from motorcycle exhausts. Heat wrap consists of a high-temperature synthetic fabric which is wrapped around the manifold. Often sold as a cheap and easy way to boost horsepower, exhaust wrap does not increase engine output much. [1]
The Turbo-back (or turbo back) is part of the exhaust system from the outlet of a turbocharger to the final vent to open air. Turbo-back systems are generally produced as aftermarket performance systems for cars with turbochargers. Some turbo-back (and header-back) systems replace stock catalytic converters, while others have less flow restriction.
The high pressure gas exiting the cylinder initially flows in the form of a "wavefront" as all disturbances in fluids do. The exhaust gas pushes its way into the pipe which is already occupied by gas from previous cycles, pushing that gas ahead and causing a wave front. Once the gas flow stops, the wave continues, passing the energy to the next ...