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BMW Header Flanges

Our American made BMW 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. These header flanges are U.S. made. Make sure to ask about custom header flanges.

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BMW I-6 M50 Mild Steel Header Flange
BMW I-6 M50 Mild Steel Header Flange
Our Price: $39.95

Precision laser cut from 3/8" thick mild steel, our header flanges are manufactured in the U.S.A. and are machine surfaced. These header flanges are specifically made for the BMW I-6 M50 engine, lovingly called the "Big Six".
Port Size: 2.000"
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BMW Straight-6 M30 SOHC Mild Steel Header Flange
BMW Straight-6 M30 SOHC Mild Steel Header Flange
Our Price: $39.95

Precision laser cut from 3/8" thick mild steel, our header flanges are manufactured in the U.SA. and are machine surfaced. These header flanges are specifically made for the BMW I-6 SOHC M30 engines.
Port Size: 1.615"
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BMW S50 B30 I-6 Stainless Header Flange
BMW S50 B30 I-6 Stainless Header Flange
Our Price: $39.95

Precision laser cut from 3/8" thick mild steel, our header flanges are manufactured in the U.S.A and are machine surfaced. These header flanges are specifically made for the BMW S50 B30 I-6 engines.
Port Size: 1.443"
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