Availability
Header Flanges
Header Flanges, 304 Stainless Steel, 3/8 in. Thick, Hemi 5.7L, Fits 1.75 in. Primaries, Pair
Part Number: STW-HF57H175
Not Yet Reviewed
Estimated Ship Date: Jun 29, 2026 if ordered today
Estimated Ship Date: Jun 29, 2026 if ordered today
Header Flanges, Mild Steel, .375 in. Thick, Chevy, Small Block, LS1/LS2/LS6/LS7, Each
Part Number: NAL-12480130
Not Yet Reviewed
Estimated Ship Date: Aug 21, 2026 if ordered today
Estimated Ship Date: Aug 21, 2026 if ordered today
Estimated Ship Date: May 20, 2026 if ordered today
Header Flanges, No Stubs, Steel, 0.375 in. Thick, 2 in. Port, Gaskets, Bolts, Chrysler, Dodge, 354, 392, Pair
Part Number: PTE-H7837
Not Yet Reviewed
Estimated Ship Date: May 12, 2026 if ordered today
Estimated Ship Date: May 12, 2026 if ordered today
Header Flanges, No Stubs, Stainless, 0.375 in. Thick, 1.750 in. Port, Each
Part Number: KOK-7028-SA
Not Yet Reviewed
Estimated Ship Date: Jun 22, 2026 if ordered today
Estimated Ship Date: Jun 22, 2026 if ordered today
Exhaust Flange
Part Number: KOK-7030-S
Not Yet Reviewed
Estimated Ship Date: Jun 22, 2026 if ordered today
Estimated Ship Date: Jun 22, 2026 if ordered today
Header Flanges, Outer Flange, No Stubs, Stainless, 0.375 in. Thick, 2.000 in. Port, Gaskets, Bolts, Each
Part Number: KOK-7011S
Not Yet Reviewed
Estimated Ship Date: Jun 22, 2026 if ordered today
Estimated Ship Date: Jun 22, 2026 if ordered today
HDR FLANGE OLDS REC 403-455
Part Number: PTE-H7852
Not Yet Reviewed
Estimated Ship Date: May 19, 2026 if ordered today
Estimated Ship Date: May 19, 2026 if ordered today
Patriot Exhaust H7813 Chevrolet LS1-LS6 1 7/8" Round Port Header Flanges
Part Number: PTE-H7813
Not Yet Reviewed
Estimated Ship Date: May 19, 2026 if ordered today
Estimated Ship Date: May 19, 2026 if ordered today
Header Flanges, 304 Stainless Steel, 3/8 in. Thick, Ford, 4.6L, 3V, Fits 1.75 in. Primaries, Pair
Part Number: STW-HF463V175
Not Yet Reviewed
Estimated Ship Date: Jun 29, 2026 if ordered today
Estimated Ship Date: Jun 29, 2026 if ordered today
DIY Comp
Part Number: PTE-H7801
Not Yet Reviewed
Estimated Ship Date: May 20, 2026 if ordered today
Estimated Ship Date: May 20, 2026 if ordered today
DIY Comp
Part Number: PTE-H7696
Not Yet Reviewed
Estimated Ship Date: May 20, 2026 if ordered today
Estimated Ship Date: May 20, 2026 if ordered today
HDR FLANGE FRD OVAL 429-460
Part Number: PTE-H7849
Not Yet Reviewed
Estimated Ship Date: May 20, 2026 if ordered today
Estimated Ship Date: May 20, 2026 if ordered today
Header Flanges, 304 Stainless Steel, 3/8 in. Thick, Hemi 5.7L/6.1L/6.4L, Fits 1.75 in. Primaries, Pair
Part Number: STW-HFJP61175
Not Yet Reviewed
Estimated Ship Date: Jun 29, 2026 if ordered today
Estimated Ship Date: Jun 29, 2026 if ordered today
Header Flanges, 304 Stainless Steel, 3/8 in. Thick, Chevy Big Block, Fits 1.875 in. Primaries, Pair
Part Number: STW-HFBBC188
Not Yet Reviewed
Estimated Ship Date: Jun 29, 2026 if ordered today
Estimated Ship Date: Jun 29, 2026 if ordered today
Header Flanges, 304 Stainless Steel, 3/8 in. Thick, Ford, 6.2L, Fits 1.875 in. Primaries, Pair
Part Number: STW-HFFTR6-2188
Not Yet Reviewed
Estimated Ship Date: Jun 29, 2026 if ordered today
Estimated Ship Date: Jun 29, 2026 if ordered today
Header Flanges, 304 Stainless Steel, 3/8 in. Thick, Chevy, LS1/LS6, Fits 1.625 in. Primaries, Pair
Part Number: STW-HFLS1163
Not Yet Reviewed
Estimated Ship Date: Jun 29, 2026 if ordered today
Estimated Ship Date: Jun 29, 2026 if ordered today
Header Flanges, 304 Stainless Steel, 3/8 in. Thick, Ford, 4.6L, 3V, Fits 1.625 in. Primaries, Pair
Part Number: STW-HF463V163
Not Yet Reviewed
Estimated Ship Date: Jun 29, 2026 if ordered today
Estimated Ship Date: Jun 29, 2026 if ordered today
header flanges
Part Number: KOK-70LSXDR200SS
Not Yet Reviewed
Estimated Ship Date: Jun 22, 2026 if ordered today
Estimated Ship Date: Jun 22, 2026 if ordered today
HDR FLANGE FRD OVAL 351C
Part Number: PTE-H7844
Not Yet Reviewed
Estimated Ship Date: May 20, 2026 if ordered today
Estimated Ship Date: May 20, 2026 if ordered today
2" SS TWR / VJR / Street Heat Flange (Individual)
Part Number: KOK-7022-S-0410
Not Yet Reviewed
Estimated Ship Date: Jun 22, 2026 if ordered today
Estimated Ship Date: Jun 22, 2026 if ordered today
Header Flanges, 304 Stainless Steel, 3/8 in. Thick, Hemi 5.7L, Fits 1.625 in. Primaries, Pair
Part Number: STW-HF57H163
Not Yet Reviewed
Estimated Ship Date: Jun 29, 2026 if ordered today
Estimated Ship Date: Jun 29, 2026 if ordered today
Header Flanges, 304 Stainless Steel, 3/8 in. Thick, Ford, 5.0L/5.2L, Coyote, Voodoo, Fits 2 in. Primaries, Pair
Part Number: STW-HFFORD5-0200
Not Yet Reviewed
Estimated Ship Date: Jun 29, 2026 if ordered today
Estimated Ship Date: Jun 29, 2026 if ordered today
Raptor Flange D Port
Part Number: KOK-7071RAPTOR62
Not Yet Reviewed
Estimated Ship Date: Jun 22, 2026 if ordered today
Estimated Ship Date: Jun 22, 2026 if ordered today
FLANGE EACH
Part Number: KOK-7028SB-REV1
Not Yet Reviewed
Estimated Ship Date: Jun 22, 2026 if ordered today
Estimated Ship Date: Jun 22, 2026 if ordered today
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