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Vehicle Info NeededHOOKER HEADERSPART NUMBER: 520-21507
21507 Aero Chamber Muffler, Single 3 1/2 in. Center Inlet, Single 3 1/2 in. Center Outlet
$14035$155.95You Save$15.60
2 left in stock
Ships on Sep 14, 2026
Lowest Price GuaranteeCenter In/Center Out
- Aero Chamber Muffler
- Single 3 1/2 in. Center Inlet
- Single 3 1/2 in. Center Outlet
- Overall Length: 17 in.
- Sound Level: Aggressive
- Aluminized Steel
- Sold Individually
- All Aluminized/Stainless Steel
- Deep Throaty Powerful Sound
- Aerodynamically Design
- 23 percent More Flow Than Others
- More Horsepower And Torque
- Sound Absorption Chamber
- Stepped Acceleration Chamber
Part TypeMuffler
BrandHOOKER HEADERS
Package Height5.4
Package Width10.9
Package Length20.3
Weight15.08 PG
Part CategoryPerformance Parts
Outlet Diameter3.5 in (88.9 mm)
Outlet QuantityOne
QuantitySold individually
Overall Length18 in (457.2 mm)
Inlet LocationCenter
MaterialAluminized Steel
Internal ConstructionChambered
Case ShapeOval
Body Width10.25 in (260.35 mm)
Outlet LocationCenter
Body Length14 in (355.6 mm)
Inlet Diameter3.5 in (88.9 mm)
Body Height4.75 in (120.65 mm)
Inlet QuantityOne
Part FitmentUniversal
Vendor Part Number21507HKR
Package Qty1
Package TypeEA
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