Porsche 911 Air-Cooled Stainless Header Flange

Precision laser cut from 3/8" thick 304 Stainless Steel, our header flanges are manufactured in the U.S. and are machine surfaced. These header flanges are specifically made for the flat-6 engines used in the air cooled Porsche 911 engines. Available in 1 1/2", 1 5/8", or 1 3/4" Round Port Options. Available in single flanges, sets of 4 (for 912 4-cylinder applications), or sets of 6 (for 911, 964, or 993 6-cylinder air cooled applications)

Port Size: 1 1/2", 1 5/8", or 1 3/4" options

Gasket: Compatible with Speed Daddy #SDD-GKTSETPDF986

Prewelded Flange Stubs are 2" in length, are purge TIG welded, and resurfaced for a perfect gasket seal.

We carry over 450 different header flange designs, so if you don't see the flange you're looking for, talk with one our tech reps about custom header flange cutting.