Killer B Motorsport 321 Stainless Holy Header Max VE – Subaru STi, WRX, Forester XT, Outback XT, Legacy GT

This equal length header is made from thick-walled 321 stainless steel, which is alloyed with titanium for strength at high exhaust temperatures. The Max VE version uses a stepped, large-diameter 2.5-inch secondary for higher exhaust flow. The collector is a cast 347 stainless high-velocity merge, and the primaries are short, symmetrical, and mandrel bent.

Each header is inspected, assembled, and pressure tested before it ships. It works with OEM EJ25 oil pans and the Killer B Motorsport oil pan. It is made in the USA.

Fitment: 2004-2021 STi, 2002-2014 WRX, 2008-2013 Forester XT, 2009-2010 Outback XT, 2009-2010 Legacy GT.