Race Spirits, XR 1200 full system exhaust RS-417 available and dyno tested soon, Complete exhaust systems, manifolds stainless 2 into 1 of 45 mm.accoppiato with sillenziatore new concept that is part of a new construction project where the decibels are not killed with the classics (caps) 'db killer' it with the more common system expansion, resulting in no loss of power. This new exhaust system is suitable for series engines for street use but the sound is absolutely captivating and deeply disturbing Assembled piece by piece by hand for a flawless result. is not approved for road use. Complete instructions for assembly, support brackets and Riser Block. Available on request with the code (206903) the passenger pegs.