Product details:

The classic Purple Hornie tubular design glass pack mufflers give sound and performance gains that are more than impressive - theyre wild! The 16-gauge, 3.5 in. diameter steel shell encloses an interior spiral louver baffle design that increases exhaust velocity while decreasing backpressure, projecting the sound waves into a temperature fiber mat material. Available in an 18 in. case length with 2.250 in. slip-fit or choose from three different styles of 3 three-hole direct-header-mount designs.