2025 Yamaha R1 Exhaust Review. However earlier this year, the brand announced that the motorcycle would not be homologated. In this video, we dive deep into the latest versio.

Gp2 is a 200mm can in carbon gp2r is a 110mm can in carbon v3 is a 150mm/200mm/250mm. Testing an aftermarket pipe against stock (and no muffler at all!)