This custom exhaust is manufactured from 304 Stainless steel 304 that is welded to perfection and powdercoated in a high temp black. It then includes a custom billit machined tip, sound suppressor and 2 way silencer with an easy to use snap ring to adjust sound levels. 2011-13 Attn: California Residents Due to California Emission Regulations, this product can be used for "Closed Course Competition Only" within California. If purchased, buyer agrees to these terms.