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Vehicle Info NeededHOOKER HEADERSPART NUMBER: 520-21609
Max Flow Mufflers Inlet: 4"
$12685$140.95You Save$14.10
Ships on 09/04/2026
Lowest Price GuaranteeCenter In / Center Out
- Max Flow Mufflers
- Inlet: 4"
- Outlet: 4"
- Center In / Center Out
- Dimensions: 4.750''H x 10.250''W x 14''L
- Flows 99 percent
- More Horsepower And Torque
- Aluminized And Stainless Steel
- High Temp Packing Material
- Absorbs Excessive Noise
- Mellow Powerful Sound
- Flows Either Direction
- Easy Installation
Part TypeMuffler
BrandHOOKER HEADERS
Package Height5.2
Package Width11.3
Package Length20.6
Weight12.35 PG
Part CategoryPerformance Parts
Outlet QuantityOne
Inlet LocationCenter
Inlet PositionCenter
Inlet TypeSingle Center Inlet
Inlet Size (In.)4
Outlet StyleStandard, without tip
Muffler FinishAluminized
Body Length14 in (355.6 mm)
Muffler Count1
Inlet Diameter4 in (101.6 mm)
Inlet QuantityOne
Muffler MaterialSteel
Outlet Size4 in (101.6 mm)
PositionN/A
Inlet Connection TypePipe Connection
Outlet Diameter4 in (101.6 mm)
QuantitySold individually
Overall Length18 in (457.2 mm)
MaterialAluminized Steel
Case Length14 in (355.6 mm)
Internal ConstructionPerforated stainless tube with packing
Case ShapeOval
Body Width10.25 in (260.35 mm)
Outlet LocationCenter
Body Height4.75 in (120.65 mm)
Outlet TypeSingle Center Outlet
Part FitmentUniversal
Outlet PositionCenter
Vendor Part Number21609HKR
Package Qty1
Package TypeEA
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Some parts are not legal for use in California or other states with similar laws / regulations
