Neuspeed catback systems Neuspeed is a well-established brand in the Euro car performance market. The Neuspeed exhaust system balances performance, sound, and styling for street driving. Each exhaust system features full T304 stainless steel piping and TIG welds for a strong build quality. It also features mandrel-bent piping for a smooth air flow. The Neuspeed exhaust system features an oval muffler canister that will sound slightly louder than stock but is not designed to be a loud attention-getter.