Make it loud, make it quiet, make it yours. The Patented Varex valved universal mufflers provides enthusiasts with a setup that’s as quiet as the stock exhaust when you want, or that unleashes the sound of your beast when you want, all using one of the two supplied key fobs. Toggle between closed,25%,50%,75% and fully open valve positions to suit your needs. To take it to the next level, add a SmartBox for the ultimate in control using our patented Bluetooth smartphone app to provide pre-set automatic valve control, geo fencing and more. The muffler body measures 6.5" round,15" long and utilizes a flanged 2.5” center inlet with 2.5" Internals for high flow performance. Patented Varex valve technology All wiring and key fob remotes included 15" long, 6.5" round body 2.5" straight through design for the ultimate flow Allow 2 inch clearance for actuating motor when fitting.