Well the kit replaces the stock blow off valve and tube. The piping is a mirror polished mandrel bent tube that is fitted to a Blitz b.o.v. It came with all hardware and clamps and was very easy to install. Now the sound of it was where I was really impressed and now everyone who looks into my engine bay quickly sees it and asks me about it. I purchased the kit from www.spwusa.com, it is also manufactured by them. I recieved it 4 days after i ordered it and was very satisfied.