Rossier Engineering 5.2 Full System On Yfz 450r (Insane Power Gains)

The boys and I "Helping" Dylan install his fresh exhaust on his new quad. This thing is WAY better than the stock exhaust! We always have a great time making these videos! please leave a like and sub if you haven't already!!

[@yeetygonzalez5843]

Is that a powerbomb header, or is that the Rossier header