Order Status & Returns
Gift Cards
Help Center
1-800-345-4545
Vehicle Info NeededHOOKER HEADERSPART NUMBER: 520-21729
Aero Chamber Muffler 1986-92 Camaro/Firebird
$18795
2 left in stock
Ships on Sep 08, 2026
Lowest Price GuaranteeGM
- Aero Chamber Muffler
- 1986-92 Camaro/Firebird
- Single 3'' Inlet
- Dual 2.5'' Outlets
- Replacement Cat-Back Muffler for #520-16823
- Aluminized Stainless Steel
- Powerful Sound
- Aerodynamic Design
- 23% More Flow than Competitors
- Greater Horsepower & Torque
- Sound Absorption Chamber & Stepped Acceleration Chamber
Part TypeMuffler
BrandHOOKER HEADERS
Package Height5.4
Package Width10.8
Package Length28.8
Weight19.4 PG
Part CategoryPerformance Parts
Outlet QuantityTwo
Inlet LocationOffset
Inlet PositionOffset
Inlet TypeSingle Offset Inlet
Inlet Size (In.)3
Outlet StyleStandard, without tip
Muffler FinishAluminized
Body Length20 in (508 mm)
Muffler Count1
Inlet Diameter3 in (76.2 mm)
Inlet QuantityOne
FinishNatural
Muffler MaterialSteel
Outlet Size2.5 in (63.5 mm)
PositionN/A
Inlet Connection TypePipe Connection
Outlet Diameter2.5 in (63.5 mm)
QuantitySold individually
Overall Length24 in (609.6 mm)
MaterialAluminized Steel
Case Length20 in (508 mm)
Internal ConstructionChambered
Case ShapeOval
Body Width10.25 in (260.35 mm)
Outlet LocationOffset
Body Height4.75 in (120.65 mm)
Outlet TypeDual Opposite End Outlet
Part FitmentSemi Universal
Outlet PositionOffset
Vendor Part Number21729HKR
Package Qty1
Package TypeEA
No Questions
No Reviews
Some parts are not legal for use in California or other states with similar laws / regulations
