G.P.R. Exhaust System has been producing in Cerro al Lambro (Milan) since 1968 racing and homologated exhausts, silencers and collectors for road and off-road motorcycles, mopeds, 2 and 4-stroke scooters. Today it has a catalog that covers most of the models of motorcycles and scooters in circulation of all merchandise. It was born as a typical family business but with the new millennium it becomes a modern factory, with important investments first in the realization of the production process to obtain European homologations for compliance with the increasingly severe measures regarding noise and emissions and subsequently thanks to obtaining the Iso9001 certification and the creation of the new factory that allows the internal production of all titanium and steel components. G.P.R. Exhaust System has been present for years in the main world competitions such as MotpGP in the Moto3 category, World Supersport Camphionship and from 2021 in the MXGP World Cross category.