Yoshimura

As we all know, the 2021 GASGAS models are slightly changed KTM/Husqarnas at slightly cheaper prices. Yet one of the very few differences between the three models is the stock exhaust systems. KTM and Husky’s 250Fs off the showroom floor have an in-house designed exhaust system that has a resonator dubbed the Flow Design Header, which is the bulbous part of the header pipe that looks sort of like an FMF Mega Bomb or a very small two-stroke pipe. In an effort to keep costs down on the GASGAS models, they come stock with a straight header that is no doubt cheaper and less complicated to produce...