Flowmaster Muffler 80 Series (2.5" Offset In / 2.5" Same Side Out) Crossflow Chambered 52580
True Dual exhaust performance where only a single exhaust system will fit such as is commonly found in classic Camaros/Firebirds, the 80 Series Cross-Flow Muffler fits transversely behind the rear axle and in front of the fuel tank, the OE placement. With single or dual inlets, the 80 Series gives excellent ground clearance, aggressive tone and dual outlets to fit muscle cars requiring this specialized fitment. Constructed of 16-gauge aluminized steel and fully MIG-welded for maximum durability.
Fitment Information
- Universal - Requires welding and fabrication
Specs & Features
- 80 Series Crossflow - 2.5" Offset In / 2.5" Same Side Out - Aggressive Sound
- Aggressive Sound Exterior Exhaust Tone
- Noticeable interior resonance
- Cross Flow Applications
- The original two chamber design
FLOWMASTER 80 SERIES CROSS-FLOW MUFFLERS
- Aggressive sound and increased power/torque output over stock
- Perfect replacement for Camaro/Firebird configuration
- Available in stainless steel or aluminized steel
- 409SS Stainless Steel muffler backed by lifetime limited warranty
- Available with either single or dual outlets
Product Description
The 80 series is a cross-flow design for applications where the muffler is mounted transversely behind the rear end. Delivering an aggressive muscle car sound both inside and outside the vehicle. Constructed of 16 gauge aluminized steel and fully MIG welded for maximum durability.Redline360 is an authorized Flowmaster dealer and sells only genuine Flowmaster products.
Product Information
Product Information
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Shipping & Returns



Flowmaster Muffler 80 Series (2.5" Offset In / 2.5" Same Side Out) Crossflow Chambered 52580
Flowmaster Muffler 80 Series (2.5" Offset In / 2.5" Same Side Out) Crossflow Chambered 52580
True Dual exhaust performance where only a single exhaust system will fit such as is commonly found in classic Camaros/Firebirds, the 80 Series Cross-Flow Muffler fits transversely behind the rear axle and in front of the fuel tank, the OE placement. With single or dual inlets, the 80 Series gives excellent ground clearance, aggressive tone and dual outlets to fit muscle cars requiring this specialized fitment. Constructed of 16-gauge aluminized steel and fully MIG-welded for maximum durability.
Fitment Information
- Universal - Requires welding and fabrication
Specs & Features
- 80 Series Crossflow - 2.5" Offset In / 2.5" Same Side Out - Aggressive Sound
- Aggressive Sound Exterior Exhaust Tone
- Noticeable interior resonance
- Cross Flow Applications
- The original two chamber design
FLOWMASTER 80 SERIES CROSS-FLOW MUFFLERS
- Aggressive sound and increased power/torque output over stock
- Perfect replacement for Camaro/Firebird configuration
- Available in stainless steel or aluminized steel
- 409SS Stainless Steel muffler backed by lifetime limited warranty
- Available with either single or dual outlets
Product Description
The 80 series is a cross-flow design for applications where the muffler is mounted transversely behind the rear end. Delivering an aggressive muscle car sound both inside and outside the vehicle. Constructed of 16 gauge aluminized steel and fully MIG welded for maximum durability.Redline360 is an authorized Flowmaster dealer and sells only genuine Flowmaster products.
Original: $231.95
-70%$231.95
$69.58Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
True Dual exhaust performance where only a single exhaust system will fit such as is commonly found in classic Camaros/Firebirds, the 80 Series Cross-Flow Muffler fits transversely behind the rear axle and in front of the fuel tank, the OE placement. With single or dual inlets, the 80 Series gives excellent ground clearance, aggressive tone and dual outlets to fit muscle cars requiring this specialized fitment. Constructed of 16-gauge aluminized steel and fully MIG-welded for maximum durability.
Fitment Information
- Universal - Requires welding and fabrication
Specs & Features
- 80 Series Crossflow - 2.5" Offset In / 2.5" Same Side Out - Aggressive Sound
- Aggressive Sound Exterior Exhaust Tone
- Noticeable interior resonance
- Cross Flow Applications
- The original two chamber design
FLOWMASTER 80 SERIES CROSS-FLOW MUFFLERS
- Aggressive sound and increased power/torque output over stock
- Perfect replacement for Camaro/Firebird configuration
- Available in stainless steel or aluminized steel
- 409SS Stainless Steel muffler backed by lifetime limited warranty
- Available with either single or dual outlets
Product Description
The 80 series is a cross-flow design for applications where the muffler is mounted transversely behind the rear end. Delivering an aggressive muscle car sound both inside and outside the vehicle. Constructed of 16 gauge aluminized steel and fully MIG welded for maximum durability.Redline360 is an authorized Flowmaster dealer and sells only genuine Flowmaster products.
























