Available with NPP valves in the mufflers and with quad 4" black chrome slash-cut double wall tips. This Factory connect axleback will require cutting of the stock exhaust to install. This system is built from corrosion resistant 304 stainless steel and TIG welded at our state of the art facility in Streetsboro, Ohio. As always, we stand by our products with a lifetime warranty on materials and craftsmanship.