Headers

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: Nov 13, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

2-1/2" primary, 4" outlet, 8" long. 304 s/s construction with smooth flow taper. We can custom make collecto

Part Number: STW-FC4250-400

Not Yet Reviewed

Estimated Ship Date: Nov 17, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Header Tether System, Stainless Steel, 36.0 in. Length, 1.875 in. Primary, 2.750 in. Collector, Kit

Part Number: LOK-1400085

Not Yet Reviewed

Estimated Ship Date: Oct 13, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Header Tether System, Stainless Steel, 36.0 in. Length, 1.875 in. Primary, 3.000 in. Collector, Kit

Part Number: LOK-1400086

Not Yet Reviewed

Estimated Ship Date: Oct 13, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Header Tether System, Stainless Steel, 36.0 in. Length, 2.000 in. Primary, 2.750 in. Collector, Kit

Part Number: LOK-1400090

Not Yet Reviewed

Estimated Ship Date: Oct 13, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Header Tether System, 36 in. Stainless Steel Tether, Fits 2 in. Primary Tube With 3.000 in. Collector, Kit

Part Number: LOK-1400091

Not Yet Reviewed

Estimated Ship Date: Oct 13, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Header Tether System, 36 in. Stainless Steel Tether, Fits 2 in. Primary Tube With 4.000 in. Collector, Kit

Part Number: LOK-1400093

Not Yet Reviewed

Estimated Ship Date: Oct 13, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Header Tether System, Stainless Steel, 36.0 in. Length, 2.125 in. Primary, 3.000 in. Collector, Kit

Part Number: LOK-1400096

Not Yet Reviewed

Estimated Ship Date: Oct 13, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Header Tether System, 36 in. Stainless Steel Tether, Fits 2 3/8 in. Primary Tube With 5.000 in. Collector, Kit

Part Number: LOK-1400118

Not Yet Reviewed

Estimated Ship Date: Oct 13, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Header Tether System, 36 in. Stainless Steel Tether, Fits 2 1/4 in. Primary Tube With 4.500 in. Collector, Kit

Part Number: LOK-1400104

Not Yet Reviewed

Estimated Ship Date: Oct 13, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Header Tether System, 36 in. Stainless Steel Tether, Fits 2 3/8 in. Primary Tube With 4.000 in. Collector, Kit

Part Number: LOK-1400116

Not Yet Reviewed

Estimated Ship Date: Oct 13, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

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: Nov 13, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Header Flanges, 304 Stainless Steel, 3/8 in. Thick, Ford, 5.0L/5.2L, Coyote, Voodoo, Fits 1.875 in. Primaries, Pair

Part Number: STW-HFFORD5-0188

Not Yet Reviewed

Estimated Ship Date: Nov 13, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

SLIP FIT MERGE COLLECTOR

Part Number: STW-MCLC4187-350

Not Yet Reviewed

Estimated Ship Date: Nov 13, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

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: Nov 17, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

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: Nov 17, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

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: Nov 17, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

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: Nov 17, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

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: Nov 17, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

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: Nov 17, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

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: Nov 17, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

2-1/8" primary, 4" outlet, 8" long. 304 s/s construction with smooth flow taper. We can custom make collecto

Part Number: STW-FC4212-400

Not Yet Reviewed

Estimated Ship Date: Nov 17, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

2-3/8" primary, 3-1/2" outlet, 8" long. 304 s/s construction with smooth flow taper. We can custom make coll

Part Number: STW-FC4237-350

Not Yet Reviewed

Estimated Ship Date: Nov 17, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

WELD ON 4 WAY COLLECTOR

Part Number: STW-FC4237-500

Not Yet Reviewed

Estimated Ship Date: Nov 17, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

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: Nov 17, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order