Availability
2-1/2" primary, 3" outlet, 8" long. 304 s/s construction with smooth flow taper. We can custom make collecto
Part Number: STW-FC4250-300
Not Yet Reviewed
Estimated Ship Date: Oct 15, 2025 if ordered today
Estimated Ship Date: Oct 15, 2025 if ordered today
This product may not be eligible for select promotional offers
Header Flanges, 304 Stainless Steel, 3/8 in. Thick, Ford Small Block, Edelbrock Victor Sr. Heads, Fits 1.875 in. Primaries, Pair
Part Number: STW-S0002
Not Yet Reviewed
Estimated Ship Date: Oct 15, 2025 if ordered today
Estimated Ship Date: Oct 15, 2025 if ordered today
This product may not be eligible for select promotional offers
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: Oct 15, 2025 if ordered today
Estimated Ship Date: Oct 15, 2025 if ordered today
This product may not be eligible for select promotional offers
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: Oct 15, 2025 if ordered today
Estimated Ship Date: Oct 15, 2025 if ordered today
This product may not be eligible for select promotional offers
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: Oct 15, 2025 if ordered today
Estimated Ship Date: Oct 15, 2025 if ordered today
This product may not be eligible for select promotional offers
Header Flanges, 304 Stainless Steel, 3/8 in. Thick, Chevy, LS7, Fits 1.875 in. Primaries, Pair
Part Number: STW-HFLS7188
Not Yet Reviewed
Estimated Ship Date: Oct 15, 2025 if ordered today
Estimated Ship Date: Oct 15, 2025 if ordered today
This product may not be eligible for select promotional offers
Header Flanges, 304 Stainless Steel, 3/8 in. Thick, Ford Small Block, Fits 1.875 in. Primaries, Pair
Part Number: STW-HFSBF2188
Not Yet Reviewed
Estimated Ship Date: Oct 15, 2025 if ordered today
Estimated Ship Date: Oct 15, 2025 if ordered today
This product may not be eligible for select promotional offers
2"Four-Way Short Merge Collector Kit
Part Number: STW-MCS4200300K
Not Yet Reviewed
Estimated Ship Date: Oct 15, 2025 if ordered today
Estimated Ship Date: Oct 15, 2025 if ordered today
This product may not be eligible for select promotional offers
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: Oct 15, 2025 if ordered today
Estimated Ship Date: Oct 15, 2025 if ordered today
This product may not be eligible for select promotional offers
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: Oct 15, 2025 if ordered today
Estimated Ship Date: Oct 15, 2025 if ordered today
This product may not be eligible for select promotional offers
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: Oct 15, 2025 if ordered today
Estimated Ship Date: Oct 15, 2025 if ordered today
This product may not be eligible for select promotional offers
Header Flanges, 304 Stainless Steel, 3/8 in. Thick, Ford, 5.4L/5.8L, 3V, Fits 1.875 in. Primaries, Pair
Part Number: STW-HF54S
Not Yet Reviewed
Estimated Ship Date: Oct 14, 2025 if ordered today
Estimated Ship Date: Oct 14, 2025 if ordered today
This product may not be eligible for select promotional offers
Header Flanges, 304 Stainless Steel, 3/8 in. Thick, Chevy, LS1/LS6, Fits 2 in. Primaries, Pair
Part Number: STW-HFLS1200
Not Yet Reviewed
Estimated Ship Date: Oct 14, 2025 if ordered today
Estimated Ship Date: Oct 14, 2025 if ordered today
This product may not be eligible for select promotional offers
SLIP FIT MERGE COLLECTOR
Part Number: STW-MCLC4187-350
Not Yet Reviewed
Estimated Ship Date: Oct 15, 2025 if ordered today
Estimated Ship Date: Oct 15, 2025 if ordered today
This product may not be eligible for select promotional offers
1-7/8 Four-Way Short Merge Collector
Part Number: STW-MCS4188300
Not Yet Reviewed
Estimated Ship Date: Oct 15, 2025 if ordered today
Estimated Ship Date: Oct 15, 2025 if ordered today
This product may not be eligible for select promotional offers
Headers, Upright, 1 1/2 in. Primary, 2.5 in. Collector, Stainless Steel, Natural, Ford, Mercury, 2.0L, 2.3L, Each
Part Number: BIG-12160FLT
Not Yet Reviewed
Estimated Ship Date: Sep 15, 2025 if ordered today
Estimated Ship Date: Sep 15, 2025 if ordered today
This product may not be eligible for select promotional offers
2-3/8" primary, 3" outlet, 8" long. 304 s/s construction with smooth flow taper. We can custom make collecto
Part Number: STW-FC4237-300
Not Yet Reviewed
Estimated Ship Date: Oct 16, 2025 if ordered today
Estimated Ship Date: Oct 16, 2025 if ordered today
This product may not be eligible for select promotional offers
Header Flanges, 304 Stainless Steel, 3/8 in. Thick, Ford, 4.6L, 4V Cobra, Fits 1.75 in. Primaries, Pair
Part Number: STW-HF4-6
Not Yet Reviewed
Estimated Ship Date: Oct 16, 2025 if ordered today
Estimated Ship Date: Oct 16, 2025 if ordered today
This product may not be eligible for select promotional offers
Header Flanges, 304 Stainless Steel, 3/8 in. Thick, Ford, 4.6L, 2V, Fits 1.75 in. Primaries, Pair
Part Number: STW-HF462V175
Not Yet Reviewed
Estimated Ship Date: Oct 16, 2025 if ordered today
Estimated Ship Date: Oct 16, 2025 if ordered today
This product may not be eligible for select promotional offers
Header Flanges, 304 Stainless Steel, 3/8 in. Thick, Chevy, LS7, Fits 2 in. Primaries, Pair
Part Number: STW-HFLS7200
Not Yet Reviewed
Estimated Ship Date: Oct 16, 2025 if ordered today
Estimated Ship Date: Oct 16, 2025 if ordered today
This product may not be eligible for select promotional offers
DIY Comp
Part Number: PTE-H7695
Not Yet Reviewed
Estimated Ship Date: Sep 23, 2025 if ordered today
Estimated Ship Date: Sep 23, 2025 if ordered today
DIY Comp
Part Number: PTE-H7889
Not Yet Reviewed
Estimated Ship Date: Sep 23, 2025 if ordered today
Estimated Ship Date: Sep 23, 2025 if ordered today
Header Collectors, Formed, 4 Into 1, Weld-on, 1 5/8 in. Primary, 3.5 in Collector Diameter, 10 in Length, Pair
Part Number: PTE-H7680
Estimated Ship Date: Sep 23, 2025 if ordered today
Estimated Ship Date: Sep 23, 2025 if ordered today
Header Flanges, No Stubs, Steel, 0.375 in. Thick, 1.625 in. Port, Gaskets, Bolts, Pair
Part Number: PTE-H7841
Estimated Ship Date: Sep 23, 2025 if ordered today
Estimated Ship Date: Sep 23, 2025 if ordered today
HDR FLANGE FRD SQ PORT 351C
Part Number: PTE-H7845
Not Yet Reviewed
Estimated Ship Date: Sep 23, 2025 if ordered today
Estimated Ship Date: Sep 23, 2025 if ordered today
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