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The components of the manifold kits are made with CNC machine for precise and accurate processing in order to obtain a flow of gas as smooth as possible by minimizing turbulence inside the pipes
nearly 60% less than the stock exhaust
SKU: GYA8837T
Terminal body length in mm: 250
SKU: 71407MI
ARROW 71837AK BMW S1000XR (2017+) Aluminum Slip-on Exhaust "Race Tech" Chain Protectors The components of the manifoldSlip on exhaust "Race Tech" for BMW S1000XR by ARROW. The first rhomboidal exhaust ever made, the Race Tech Arrow marked a breaking point with the usual cylindrical or elliptical shapes of traditional exhausts. The performance remains at a high level thanks to the new profile that allows to reduce the dimensions and weight without compromising the internal volume and therefore the ability of the muffler to dampen acoustic emissions. The internal
