Muffler Trumpet BMW R Ninet. This exhaust silencer can be mounted on the original or on those racing exhaust manifolds. The silencer is homologated for the European movement, it requires no modification to install it reprogramming of the ECU, tested on test bench increases the power output of 4.6 hp. Available in about 10 days. Product Luismoto By Mass. Possibility to have it also color brushed stainless steel (inox) polished steel - black

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