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Vehicle Info NeededFLOWMASTERPART NUMBER: 389-52580
80 Series Cross-Flow Muffler Offset In 2.5"/2.5" Same Side Out
Color:
$23195
Ships on 09/04/2026
Lowest Price GuaranteeOffset In/Same Side Out
- 80 Series Cross-Flow Muffler
- Offset In 2.5"/2.5" Same Side Out
- Aluminized Steel
- Case: 17" L (5" Thick)
- Overall: 20" L x 10" W
- Universal Muffler - Not a direct fit. Some adaptation required.
True Dual Performance
Flowmaster's 80 Series Cross-Flow Mufflers offer true dual performance where only a single exhaust system will fit, commonly found on classic Camaros and Firebirds. The 80 Series Cross-Flow Muffler fits transversely behind the rear axle and in front of the fuel tank making it the perfect OE replacement. The 80 Series gives excellent ground clearance, aggressive tone and increased power output over stock.
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Features:
- True dual performance
- Aggressive tone
- Stainless steel or aluminized steel
- Fully MIG-welded
- Single or dual outlets
- Perfect replacement for Camaro/Firebird configuration
Part TypeMuffler
Product LineFlowmaster 80 Series Cross-Flow Mufflers
BrandFLOWMASTER
Package Height5.5
Package Width10.5
Package Length24.5
Weight15.5 PG
Outlet Quantity1
Inlet PositionOffset
Inlet TypeWeld-On
Inlet Size (In.)2.5
Heat Shield AttachedNo
Body Length17 in.
Muffler Count1
Inlet Outside Diameter2.63 in.
Inlet Quantity1
Sound LevelAggressive
Outlet Outside Diameter2.63 in.
Muffler MaterialSteel
Universal Or Specific FitUniversal
Hanger IncludedNo
Inlet Connection TypePipe Connection
Outlet Diameter2.5 in (63.5 mm)
ColorBlack
TunableNo
Case Length17 in (431.8 mm)
Case ShapeOval
Body Width10 in.
Outlet Inside Diameter2.50 in.
Body Height5 in.
Outlet TypeSingle
Outlet PositionOffset
Part CategoryExhaust Systems & Components
ShapeOval
Exhaust Tip Quantity0
Inlet LocationOffset
Muffler TypeChambered (Transverse)
Outlet StyleStandard, without tip
Muffler FinishAluminized
Mount TypeUses New Hangers (Not Included)
Inlet Diameter2.50 in.
Clamps IncludedNo
FinishHigh-Temperature Paint
ReversibleNo
Outlet Size2.5 in (63.5 mm)
Muffler Series80 Series Crossflow
QuantitySold individually
Overall Length20 in.
MaterialAluminized Steel
Internal ConstructionChambered
Body MaterialAluminized Steel
Inlet Inside Diameter2.50 in.
Outlet LocationOffset (Same End)
FitmentUniversal
Part FitmentUniversal Fit
Vendor Part Number52580
Package Qty1
Package TypeEA
No Questions
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Some parts are not legal for use in California or other states with similar laws / regulations
