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Subaru Header Flanges

Our American made Subaru header flanges are precision CNC laser jet cut from 3/8” stainless steel or 1018 cold rolled steel.
Stainless Header Mfg., Inc. offers the finest in CNC laser cut header flanges. While most header flanges are made from 1/4" or 5/16" material, our are precision CNC laser cut header flanges are cut from from 3/8" material. We offer our flanges in 304 stainless steel or 1018 cold rolled steel. The heavier material we use to fabricate our flanges greatly reduce the warping problems seen in other lighter flanges. Make sure to ask about custom header flanges.

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Subaru EJ257 Mild Steel Header Flange
Subaru EJ257 Mild Steel Header Flange
Our Price: $24.95

Precision laser cut from 3/8" thick mild steel, our header flanges are manufactured in the U.S. and are machine surfaced. These header flanges are specifically made for the Subaru EJ257 DOHC 16v boxer-4 engine found in 2004-present Impreza WRX STi's.
Port Size: 1.631" more info
Subaru EZ30R Mild Steel Header Flange
Subaru EZ30R Mild Steel Header Flange
Our Price: $34.95

Precision laser cut from 3/8" thick mild steel, our header flanges are manufactured in the U.S. and are machine surfaced. These header flanges are specifically made for the Subaru EZ30R Boxer-6 found in the 1999-2009 Outback and Legacy.
Port Size: 2.577" more info
Subaru EG33 H6 Mild Steel Header Flange
Subaru EG33 H6 Mild Steel Header Flange
Our Price: $34.95

Precision laser cut from 3/8" thick mild steel, our header flanges are manufactured in the U.S. and are machine surfaced. These header flanges are specifically made for the Subaru EG33 found in the 1992-1997 Subaru Alcyone SVX.
Port Size: 1.574" more info