Applied Technologies & Research build their turbo exhaust downpipes from T304 stainless steel tubing and mandrel bend each piece to exact tolerances for easy and precise bolt-on installation. These pipes reduce back-pressure and greatly improve flow characteristics so you will get every pound of power that your turbo can provide. When you combine one of these downpipes with a good set of headers, a free-flowing exhaust system and mufflers you can expect to see reduced cylinder head temperatures, which diminishes detonating while improving turbo spool rate.