Availability
Headers, Circle Track, IMCA Modified, Adjustable, 4-1 Two-Piece, 1 7/8 - 2 in. Primaries, 3.5 in. Collector, Spread Port, Chevy, Pair
Part Number: SCH-163-98HSP
Not Yet Reviewed
Estimated Ship Date: Dec 12, 2025 if ordered today
Estimated Ship Date: Dec 12, 2025 if ordered today
Headers, Circle Track, IMCA Modified, Adjustable, 4-1 Two-Piece, 1 7/8 - 2 in. Primaries, 3.5 in. Collector, 18 Degree Flange, Chevy, Pair
Part Number: SCH-163-99-18
Not Yet Reviewed
Estimated Ship Date: Dec 12, 2025 if ordered today
Estimated Ship Date: Dec 12, 2025 if ordered today
Headers, Circle Track, IMCA Modified, Adjustable, 4-1 Two-Piece, 1 7/8 - 2 in. Primaries, 3.5 in. Collector, Chevy, Pair
Part Number: SCH-163-9H9H
Not Yet Reviewed
Estimated Ship Date: Dec 12, 2025 if ordered today
Estimated Ship Date: Dec 12, 2025 if ordered today
Headers, Circle Track, IMCA Modified, 4-1 One-Piece, 1 7/8 in. Primaries, 3.5 in. Collector, Chevy, Pair
Part Number: SCH-163LS1
Not Yet Reviewed
Estimated Ship Date: Dec 12, 2025 if ordered today
Estimated Ship Date: Dec 12, 2025 if ordered today
Headers, Circle Track, IMCA Modified, 4-1 One-Piece, 1 7/8 in. Primaries, 3.5 in. Collector, Spread port, Chevy, Pair
Part Number: SCH-163SP
Not Yet Reviewed
Estimated Ship Date: Dec 12, 2025 if ordered today
Estimated Ship Date: Dec 12, 2025 if ordered today
Headers, Circle Track, Street Stock, 4-1 One-Piece, 1 5/8 in. Primaries, 3 in. Collector, Chevy, Pair
Part Number: SCH-165A
Not Yet Reviewed
Estimated Ship Date: Dec 12, 2025 if ordered today
Estimated Ship Date: Dec 12, 2025 if ordered today
Headers, Circle Track, Street Stock, 4-1 One-Piece, 1 5/8 in. Primaries, 3 in. Collector, 604 Crate Engine, Chevy, Pair
Part Number: SCH-165ACM
Not Yet Reviewed
Estimated Ship Date: Dec 12, 2025 if ordered today
Estimated Ship Date: Dec 12, 2025 if ordered today
Headers, Circle Track, Street Stock, 4-1 One-Piece, 1 5/8 in. Primaries, 3.5 in. Collector, 602 Crate Engine, Chevy, Pair
Part Number: SCH-165ACM2
Not Yet Reviewed
Estimated Ship Date: Dec 12, 2025 if ordered today
Estimated Ship Date: Dec 12, 2025 if ordered today
Headers, Circle Track, Street Stock, 4-1 One-Piece, 1 5/8 in. Primaries, 3 in. Collector, 604 Crate Engine, Chevy, Pair
Part Number: SCH-165CM
Not Yet Reviewed
Estimated Ship Date: Dec 12, 2025 if ordered today
Estimated Ship Date: Dec 12, 2025 if ordered today
Headers, Circle Track, Street Stock, 4-1 One-Piece, 1 5/8 - 1 3/4 in. Primaries, 3 in. Collector, 604 Crate Engine, Chevy, Pair
Part Number: SCH-165VACM
Not Yet Reviewed
Estimated Ship Date: Dec 12, 2025 if ordered today
Estimated Ship Date: Dec 12, 2025 if ordered today
Headers, Truck/Tractor Pull, Upsweep, 1 5/8 in. Primaries, 3.000 in. Collector, Evac Tubes, Chevy Big Block, Pair
Part Number: SCH-2512-E
Not Yet Reviewed
Estimated Ship Date: Dec 12, 2025 if ordered today
Estimated Ship Date: Dec 12, 2025 if ordered today
Headers, Truck/Tractor Pull, Upsweep, 2 in. Primaries, 4.000 in. Collector, Chevy Big Block, Pair
Part Number: SCH-2516
Not Yet Reviewed
Estimated Ship Date: Dec 12, 2025 if ordered today
Estimated Ship Date: Dec 12, 2025 if ordered today
Headers, Truck/Tractor Pull, Upsweep, 2 in. Primaries, 4.000 in. Collector, Evac Tubes, Chevy Big Block, Pair
Part Number: SCH-2516-E
Not Yet Reviewed
Estimated Ship Date: Dec 12, 2025 if ordered today
Estimated Ship Date: Dec 12, 2025 if ordered today
Headers, Truck/Tractor Pull, Upsweep, 2 in. Primaries, 4.000 in. Collector, Chevy Big Block, Pair
Part Number: SCH-2516A
Not Yet Reviewed
Estimated Ship Date: Dec 12, 2025 if ordered today
Estimated Ship Date: Dec 12, 2025 if ordered today
Headers, Truck/Tractor Pull, Upsweep, 2 1/8 in. Primaries, 4.000 in. Collector, Chevy Big Block, Pair
Part Number: SCH-2517
Not Yet Reviewed
Estimated Ship Date: Dec 12, 2025 if ordered today
Estimated Ship Date: Dec 12, 2025 if ordered today
Headers, Truck/Tractor Pull, Upsweep, 2 1/8 - 2 1/4 in. Primaries, 4.000 in. Collector, Chevy Big Block, Pair
Part Number: SCH-2517V
Not Yet Reviewed
Estimated Ship Date: Dec 12, 2025 if ordered today
Estimated Ship Date: Dec 12, 2025 if ordered today
Headers, Truck/Tractor Pull, Upsweep, 2 3/8 in. Primaries, 4.500 in. Collector, Chevy Big Block, Pair
Part Number: SCH-2519
Not Yet Reviewed
Estimated Ship Date: Dec 12, 2025 if ordered today
Estimated Ship Date: Dec 12, 2025 if ordered today
Headers, Truck/Tractor Pull, Upsweep, 2 3/8 in. Primaries, 5.000 in. Collector, Chevy Big Block, Pair
Part Number: SCH-2519-5
Not Yet Reviewed
Estimated Ship Date: Dec 12, 2025 if ordered today
Estimated Ship Date: Dec 12, 2025 if ordered today
Headers, Truck/Tractor Pull, Upsweep, 2 3/8 in. Primaries, 4.500 in. Collector, Evac Tubes, Chevy Big Block, Pair
Part Number: SCH-2519-E
Not Yet Reviewed
Estimated Ship Date: Dec 12, 2025 if ordered today
Estimated Ship Date: Dec 12, 2025 if ordered today
Headers, Circle Track, Street Stock, 4-1 One-Piece, 1 7/8 in. Primaries, 3 in. Collector, Automatic, Chevy, Pair
Part Number: SCH-187-3
Not Yet Reviewed
Estimated Ship Date: Dec 12, 2025 if ordered today
Estimated Ship Date: Dec 12, 2025 if ordered today
Headers, Circle Track, Street Stock, 4-1 One-Piece, 1 7/8 in. Primaries, 3.5 in. Collector, Manual, Chevy, Pair
Part Number: SCH-187M
Not Yet Reviewed
Estimated Ship Date: Dec 12, 2025 if ordered today
Estimated Ship Date: Dec 12, 2025 if ordered today
Headers, Circle Track, Street Stock, 4-1 One-Piece, 1 7/8 in. Primaries, 3.5 in. Collector, Manual, Chevy, Pair
Part Number: SCH-187M18
Not Yet Reviewed
Estimated Ship Date: Dec 12, 2025 if ordered today
Estimated Ship Date: Dec 12, 2025 if ordered today
Headers, Circle Track, Street Stock, 4-1 One-Piece, 1 7/8 in. Primaries, 3.5 in. Collector, Stahl Flange, Manual, Chevy, Pair
Part Number: SCH-187MS
Not Yet Reviewed
Estimated Ship Date: Dec 12, 2025 if ordered today
Estimated Ship Date: Dec 12, 2025 if ordered today
Headers, Circle Track, Street Stock, 4-1 One-Piece, 1 7/8 in. Primaries, 3.5 in. Collector, Spread Port, Manual, Chevy, Pair
Part Number: SCH-187MSP
Not Yet Reviewed
Estimated Ship Date: Dec 12, 2025 if ordered today
Estimated Ship Date: Dec 12, 2025 if ordered today
Headers, Circle Track, Crossover, 4-1 One-Piece, Steel, 1 5/8 in. Primaries, 3 in. Collector, N Sportsman Flange, H-Style, Ford, Pair
Part Number: SCH-335HN
Not Yet Reviewed
Estimated Ship Date: Dec 12, 2025 if ordered today
Estimated Ship Date: Dec 12, 2025 if ordered today
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