Our stainless steel turbo elbow replaces the restrictive cast iron standard item. By using a smoother, more free flowing design it allows exhaust gasses to exit the turbo faster, improving spool up time and reducing turbo lag as a result. Features: Manufactured from T304 stainless steel TIG welded, internal welds are polished Includes lambda boss for OEM lambda sensor Compatible with standard downpipe or aftermarket 3" item Gaskets included