Stainless Works Headers

Exhaust Collector, Merge, Stainless Steel, 4 into 1, 2 in. Primary, 2.75 in.-3.5 in. Outlet, 11 in. Length

Part Number: STW-MCLC4200-350

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Estimated Ship Date: Monday 8/4/2025

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Header Flanges, 304 Stainless Steel, 3/8 in. Thick, Chevy Big Block, Fits 2.25 in. Primaries, Pair

Part Number: STW-HFBBC225

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Estimated Ship Date: Monday 8/4/2025

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Exhaust Collector, Merge, Stainless Steel, 4 into 1, 2.25 in. Primary, 3.25 in.-4 in. Outlet, 11 in. Length

Part Number: STW-MCLC4225-400

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 8/4/2025

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Header Flanges, 304 Stainless Steel, 3/8 in. Thick, 2.50 in. Diameter Round Raised Port, Chevrolet, BBC, Pair

Part Number: STW-HFBBCH250RSD

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Estimated Ship Date: Monday 8/4/2025

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Exhaust Collector, Merge, Stainless Steel, 4 into 1, 2.375 in. Primary, 3.5 in.-4.5 in. Outlet, 11 in. Length

Part Number: STW-MCLC4238-450

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 8/4/2025

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Header Flanges, 304 Stainless Steel, 3/8 in. Thick, Ford, 5.0L/5.2L, Coyote, Voodoo, Fits 1.75 in. Primaries, Pair

Part Number: STW-HFFORD5-0175

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Estimated Ship Date: Monday 8/4/2025

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Exhaust Collector, Merge, Stainless Steel, 4 into 1, 1.75 in. Primary, 3 in. Outlet, 11 in. Length, Each

Part Number: STW-MC4175-300

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Estimated Ship Date: Monday 8/4/2025

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Header Flanges, 304 Stainless Steel, 3/8 in. Thick, Ford Small Block, AFR 225 Heads, Fits 1.875 in. Primaries, Pair

Part Number: STW-HFSBFAFR188

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Estimated Ship Date: Monday 8/4/2025

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Header Flanges, 304 Stainless Steel, 3/8 in. Thick, Ford Small Block, Trick Flow® High Port Heads, Fits 1.875 in. Primaries, Pair

Part Number: STW-HFSBFTFHP188

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Estimated Ship Date: Monday 8/4/2025

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Header Flanges, 304 Stainless Steel, 3/8 in. Thick, Ford Big Block, Fits 2.25 in. Primaries, Pair

Part Number: STW-HFBBF1225

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Estimated Ship Date: Sep 18, 2025 if ordered today

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2-1/4" primary, 3" outlet, 8" long. 304 s/s construction with smooth flow taper. We can custom make collecto

Part Number: STW-FC4225-300

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Estimated Ship Date: Sep 18, 2025 if ordered today

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Exhaust Collector, Merge, Stainless Steel, 4 into 1, 2.5 in. Primary, 3.75 in.- 5 in. Outlet, 11 in. Length

Part Number: STW-MCLC4250-500

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Estimated Ship Date: Monday 8/4/2025

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Header Flanges, 304 Stainless Steel, 3/8 in. Thick, Chevy Small Block, Fits 1.875 in. Primaries, Pair

Part Number: STW-HFSBCSQ1875

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Estimated Ship Date: Monday 8/4/2025

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1-7/8 Four-Way Short Merge Collector Kit

Part Number: STW-MCS4188300K

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Estimated Ship Date: Aug 11, 2025 if ordered today

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Header Flanges, 304 Stainless Steel, 3/8 in. Thick, Ford Small Block, AFR 225 Heads, Fits 2 in. Primaries, Pair

Part Number: STW-HFSBFAFR200

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Estimated Ship Date: Monday 8/4/2025

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Header Flanges, 304 Stainless Steel, 3/8 in. Thick, Chevy Small Block, Fits 1.75 in. Primaries, Pair

Part Number: STW-HFSBCSQ175

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 8/4/2025

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Exhaust Collector, Merge, Stainless Steel, 4 into 1, 2.125 in. Primary, 2.75 in.-3.5 in. Outlet, 11 in. Length

Part Number: STW-MCLC4212-350

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 8/4/2025

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Header Flanges, 304 Stainless Steel, 3/8 in. Thick, Chevy Big Block, Fits 2.375 in. Primaries, Pair

Part Number: STW-HFBBCH238RSD

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Estimated Ship Date: Monday 8/4/2025

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2-3/8" primary, 4" outlet, 8" long. 304 s/s construction with smooth flow taper. We can custom make collecto

Part Number: STW-FC4237-400

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Estimated Ship Date: Sep 15, 2025 if ordered today

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Header Flanges, 304 Stainless Steel, 3/8 in. Thick, Chevy Big Block, Fits 2 in. Primaries, Pair

Part Number: STW-HFBBC200

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Estimated Ship Date: Monday 8/4/2025

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Exhaust Collector, Formed, Stainless Steel, 4 into 1, 2.25 in. primary, 4 in. Outlet, 8 in. Length, Each

Part Number: STW-FC4225-400

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Estimated Ship Date: Monday 8/4/2025

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Header Flanges, 304 Stainless Steel, 3/8 in. Thick, Ford Small Block, Trick Flow® High Port Heads, Fits 2 in. Primaries, Pair

Part Number: STW-HFSBFTFHP200

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Estimated Ship Date: Sep 15, 2025 if ordered today

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Header Flanges, 304 Stainless Steel, 3/8 in. Thick, Chevy Big Block, Fits 2.125 in. Primaries, Pair

Part Number: STW-HFBBC212

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Estimated Ship Date: Monday 8/4/2025

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WELD ON 4 WAY COLLECTOR

Part Number: STW-FC4250-500

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Estimated Ship Date: Sep 17, 2025 if ordered today

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Header Flanges, Carbon Steel, 3/8 in. Thick, Ford Small Block, Fits 1.875 in. Primaries, Pair

Part Number: STW-HFSBFBTADAPT

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 8/4/2025

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