Availability
Headers, Circle Track, IMCA Modified, Long, 4-1 One-Piece, 1 3/4 in. Primaries, 3.5 in. Collector, 18 Degree Flange, Chevy, Pair
Part Number: SCH-1186-18
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, Long, 4-1 One-Piece, 1 3/4 in. Primaries, 3.5 in. Collector, Spread Port, Chevy, Pair
Part Number: SCH-1186SP
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, Long, 4-1 One-Piece, 1 3/4 - 1 7/8 in. Primaries, 3.5 in. Collector, Chevy, Pair
Part Number: SCH-1186V-3
Not Yet Reviewed
Estimated Ship Date: Dec 12, 2025 if ordered today
Estimated Ship Date: Dec 12, 2025 if ordered today
Headers, IMCA Modified Long Tube, Circle Track, Steel, 3.5 in. Collector Diameter, Chevy, 5.7L LS, Pair
Part Number: SCH-1186LS1
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, Long, 4-1 One-Piece, 1 3/4 - 1 7/8 in. Primaries, 3.5 in. Collector, 18 Degree Flange, Chevy, Pair
Part Number: SCH-1186VB10
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, Long, 4-1 One-Piece, 1 3/4 - 1 7/8 in. Primaries, 3.5 in. Collector, 18 Degree Flange, Chevy, Pair
Part Number: SCH-1186VB18
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, Long, 4-1 One-Piece, 1 3/4 - 1 7/8 in. Primaries, 3.5 in. Collector, 604 Crate Engine, Chevy, Pair
Part Number: SCH-1186VCM
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, Long, 4-1 One-Piece, 1 3/4 - 1 7/8 in. Primaries, 3.5 in. Collector, SB2 Flange, Chevy, Pair
Part Number: SCH-1186VSB2
Not Yet Reviewed
Estimated Ship Date: Dec 12, 2025 if ordered today
Estimated Ship Date: Dec 12, 2025 if ordered today
Headers, IMCA Modified, Full-Length, Steel, Painted, 1 3/4 in. Primary, 3.50 in. Collector, Chevy, Set
Part Number: SCH-1172
Not Yet Reviewed
Estimated Ship Date: Dec 12, 2025 if ordered today
Estimated Ship Date: Dec 12, 2025 if ordered today
Headers, IMCA Modified, Long Tube, Steel, Painted, 1 3/4 in.-1 7/8 in. Primary, 3.50 in. Collector, Chevy, Set
Part Number: SCH-1172V
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, Long, 4-1 One-Piece, 1 5/8 in. Primaries, 3 in. Collector, Chevy, Pair
Part Number: SCH-1175
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, Long, 4-1 One-Piece, 1 5/8 - 1 3/4 in. Primaries, 3.5 in. Collector, Chevy, Pair
Part Number: SCH-1175V
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, Long, 4-1 One-Piece, 1 5/8 - 1 3/4 in. Primaries, 3 in. Collector, Chevy, Pair
Part Number: SCH-1175V-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, IMCA Modified, Mid, 4-1 One-Piece, 1 5/8 in. Primaries, 3 in. Collector, Chevy, Pair
Part Number: SCH-1105
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, Mid, 4-1 One-Piece, 1 5/8 in. Primaries, 3 in. Collector, 604 Crate Engine, Chevy, Pair
Part Number: SCH-1105CM
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, Mid, 4-1 One-Piece, 1 5/8 in. Primaries, 3 in. Collector, 602 Crate Engine, Chevy, Pair
Part Number: SCH-1105CM2
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, Mid, 4-1 One-Piece, 1 5/8 - 1 3/4 in. Primaries, 3.5 in. Collector, Chevy, Pair
Part Number: SCH-1105V
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, Mid, 4-1 One-Piece, 1 5/8 - 1 3/4 in. Primaries, 3 in. Collector, Chevy, Pair
Part Number: SCH-1105V-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, IMCA Modified, Mid, 4-1 One-Piece, 1 5/8 - 1 3/4 in. Primaries, 3.5 in. Collector, 604 Crate Engine, Chevy, Pair
Part Number: SCH-1105VCM
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, Mid, 4-1 One-Piece, 1 5/8 - 1 3/4 in. Primaries, 3 in. Collector, 604 Crate Engine, Chevy, Pair
Part Number: SCH-1105VCM-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, IMCA Modified, Mid, 4-1 One-Piece, 1 3/4 in. Primaries, 3.5 in. Collector, 604 Crate Engine, Chevy, Pair
Part Number: SCH-1106CM
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, Mid, 4-1 One-Piece, 1 3/4 in. Primaries, 3 in. Collector, 604 Crate Engine, Chevy, Pair
Part Number: SCH-1106CM-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, IMCA Modified, Mid, 4-1 One-Piece, 1 3/4 in. Primaries, 3.5 in. Collector, Chevy, Pair
Part Number: SCH-1106LS1
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, Mid, 4-1 One-Piece, 1 3/4 in. Primaries, 3 in. Collector, Chevy, Pair
Part Number: SCH-1106LS3
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, Mid, 4-1 One-Piece, 1 3/4 in. Primaries, 3.5 in. Collector, Spread Port, Chevy, Pair
Part Number: SCH-1106SP
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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