Gianelli G4.0 Exhaust for Forza 125 V4 (from 2021). Steel exhaust with ceramic finish, matte black end cap and heat shield. Engineered for performance, it is 30% lighter than the OEM exhaust, also delivering an approximate 3% power gain in homologated configuration (with catalytic converter). Street-legal.
Gianelli G4.0 Exhaust for Forza 350 (2021 and up). Steel exhaust with ceramic finish, matte black end cap, and heat shield. Engineered for performance, it is 30% lighter than the OEM exhaust, delivering an approximate 3% power gain in “street-legal” configuration (with catalytic converter). Street-legal.