Item is 100% New, Never used or installed. Features Dual O2 Sensors and comes with blanking plugs for models that dont require them. Header features 6-2-1 light weight piping design. Fits both the 2.5L, 2.8L and 3.0L L6 BMW Engine. CNC machine flanges with TIG and MIG welded construction.
HP gains of 5-10HP depending on current setup. Product does not come with installation instructions.