Exhaust Headers, Bolts, Collectors & More

Header Bolts, Wedge Locking, Hex Head, Steel, Black Oxide, 3/8-16 in. Thread, 1 in. UHL, Chevy, Set of 12

Part Number: PRO-66753

4.6 out of 5 stars ( 25 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

Header Bolts, Wedge Locking, Hex Head, Steel, Black Oxide, 3/8-16 in. Thread, 1.000 in. UHL, Set of 16

Part Number: PRO-66756

4.55 out of 5 stars ( 11 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

Exhaust Collector, Formed, Stainless Steel, 4 into 1, 1.875 in. primary, 3 in. Outlet, 8 in. Length, Each

Part Number: STW-FC4188-300

Not Yet Reviewed

Estimated Ship Date: Monday 4/13/2026 if shipped by air

Header Bolts, Hex Head, Steel, Nickel Plated, 8mm x 1.25, Chevy, 5.7, 6.0L, LS1, LS6, Set of 12

Part Number: PRO-66754

4.67 out of 5 stars ( 6 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

Header Collector, Formed, 4 Into 1 Style, Stainless Steel, Natural, Weld-on, 3.00 in. Diameter, 7.00 in. Length, 1 3/4 in. Primary Tube O.D., Each

Part Number: STW-FC4175-300

4.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

Header Collectors, Formed, 4 Into 1, Weld-on, 1 3/4 in. Primary, 3.0 in Collector Diameter, 10 in Length, Pair

Part Number: PTE-H7672

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

Header Bolts, Wedge Locking, Hex Head, Steel, Black Oxide, 3/8-16 in. Thread, 0.750 in. UHL, Chevy, Set of 16

Part Number: PRO-66752

4.73 out of 5 stars ( 11 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

Header Collectors, Formed, 4 Into 1, Weld-on, 1 7/8 in. Primary, 3.0 in Collector Diameter, 10 in Length, Pair

Part Number: PTE-H7674

4.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

Exhaust Collector, Formed, Stainless Steel, 4 into 1, 2 in. primary, 3 in. Outlet, 8 in. Length, Each

Part Number: STW-FC4200-300

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

Header Bolts, Wedge Locking, Hex Head, Steel, Black Oxide, 3/8-16 in. Thread, 0.750 in. UHL, Chevy, Set of 12

Part Number: PRO-66751

4.5 out of 5 stars ( 8 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

Header Bolts, Hex Head, Steel, Nickel Plated, 8mm x 1.25, Chevy, 5.7, 6.0L, LS1, LS6, Set of 12

Part Number: PRO-66755

4.6 out of 5 stars ( 5 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

Header Collectors, Weld-On, Steel, Natural, 2.0 in. Primary, 3.5 in. Outlet, 10 in. Length, Pair

Part Number: PTE-H7686

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

Exhaust Collectors, 1 5/8 in. Primary, 2.50 in. Outlet, 4 into 1, 10.0 in. Length, Pair

Part Number: PTE-H7671

Not Yet Reviewed

Estimated Ship Date: Monday 4/13/2026 if shipped by air

Header Collectors, Formed, 4 Into 1, Weld-on, 2 in. Primary, 4.0 in. Collector Diameter, 10 in. Length, Pair

Part Number: PTE-H7681

4.33 out of 5 stars ( 3 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

Header Collectors, Formed, 4 Into 1, Weld-on, 2 1/4 in. Primary, 4.0 in Collector Diameter, 10 in Length, Pair

Part Number: PTE-H7690

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

Exhaust Collector, Formed, Stainless Steel, 4 into 1, 7 in. Length, Each

Part Number: STW-FC4175-250

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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

Part Number: STW-FC4225-350

Not Yet Reviewed

Estimated Ship Date: Jun 15, 2026 if ordered today

• Drop Ship
• Special Order

Header Collectors, Formed, 4 Into 1, Weld-on, 1 1/2 in. Primary, 2.5 in. Collector Diameter, 6 in Length, Pair

Part Number: PTE-H7678

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

Header Collector, Formed, 2 Into 1, Weld-on, 2 in. Primary, 2.5 in. Collector Diameter, 6.5 in. Length, Each

Part Number: PTE-H7664

Not Yet Reviewed

Estimated Ship Date: Monday 4/13/2026 if shipped by air

Header Collectors, Formed, 4 Into 1, Weld-on, 1 5/8 in. Primary, 3.0 in Collector Diameter, 10 in Length, Pair

Part Number: PTE-H7670

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

1 7/8" primary, 2.5" outlet, 8" long. 304 s/s construction with smooth flow taper. We can custom make collec

Part Number: STW-FC4188-250

Not Yet Reviewed

Estimated Ship Date: Monday 4/13/2026 if shipped by air

Header Collector, Formed, Stainless Steel, 4 into 1, 2 in. primary, 3.5 in. Outlet, 8 in. Length, Natural, Each

Part Number: STW-FC4200-350

Not Yet Reviewed

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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

Not Yet Reviewed

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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

Part Number: STW-FC4225-400

Not Yet Reviewed

Estimated Ship Date: Monday 4/13/2026 if shipped by air

Header Collectors, Formed, 4 Into 1, Weld-on, 2 1/8 in. Primary, 3.5 in Collector Diameter, 10 in Length, Pair

Part Number: PTE-H7688

Not Yet Reviewed

Estimated Ship Date: Monday 4/13/2026 if shipped by air