1990 Pontiac Firebird Exhaust Muffler Parts

Choose your Engine for your 1990 Pontiac Firebird


Showing 1 - 4 of 4 products
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Flowmaster
  • 80 Series™ Cross-Flow Muffler
  • 2.5 in. Offset Inlet/Dual Outlet; Case Dimensions 4 in. x 9.5 in. x 15 in.; 21 in. Overall Length; 409 Stainless Steel Not Direct Fit-Some Adaptation Required
  • 80 Series™ Cross-Flow Muffler; 2.5 in. Offset Inlet/Dual Outlet; Case Dimensions 4 in. x 9.5 in. x 15 in.; 21 in. Overall Length; 409 Stainless Steel;
  • 80 Series(TM) Cross-Flow Muffler
  • Product Attributes:
    • Tip Quantity: 0
    • Muffler Type: Reflection
    • Outlet Position: Dual
    • Inlet Diameter: 2.500 In.
    • Sound Level: Aggressive
    • WARNING CA Proposition 65: Yes
    • Fitment: Universal
    • Body Width: 9.750 In.
    • Inlet Type: Single Offset
    • Body Length: 15.000 In.
    • Inlet Outside Diameter: 2.500 In.
    • Inlet Connection Type: Pipe
    • Outlet Diameter: 2.500 In.
    • Mount Type: Uses Factory Hangers
    • Automotive Item Grade: High Performance
    • California Proposition 65 Chemical Name 2: Chromium (hexavalent Compounds)
    • Outlet Connection Type: Pipe
    • California Proposition 65 Chemical Name 1: Nickel (metallic)
    • WARNING CA Proposition 65 Message: Warning: Cancer And Reproductive Harm - Www.p65warnings.ca.gov
    • Muffler Series: 80 Series Crossflow
    • Overall Length: 21.000 In.
    • Inlet Inside Diameter: 2.500 In.
    • Outlet Outside Diameter: 2.500 In.
    • Main Piping Diameter: 2.500 In.
    • Shape: Oval
    • Inlet Position: Offset
    • Outlet Type: Dual Outlet
  • Features:
    • Durable Fully Welded 16ga Aluminized Steel
    • Limited Lifetime Warranty
    • Aggressive And Powerful Exterior Exhaust Tone
    • Notable Interior Resonance
    • 1984 to 2002 Camaro/Firebird/Buick Grand National
    • Cross Flow Applications
    • The Original Two Chamber Design
    • Premium Flowmaster Quality
  • 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, this is an excellent replacement for Camaros and Firebirds with transverse mufflers. Constructed of 16 gauge 409S stainless steel and fully MIG welded for maximum durability.
  • Suggested Purchase Quantity: 2
    • Most jobs typically require 2 of this item.

Additional Fitment Information:
Vehicle Block CC Engine CID
1990 - Pontiac Firebird V - 6 Cyl 3.1L 189

Flowmaster
  • 80 Series™ Cross-Flow Muffler
  • 2.5 in. Offset Inlet/Dual Outlet; Case Dimensions 4 in. x 9.75 in. x 15 in.; 21 in. Overall Length; Aluminized Steel Not Direct Fit-Some Adaptation Required
  • 80 Series™ Cross-Flow Muffler; 2.5 in. Offset Inlet/Dual Outlet; Case Dimensions 4 in. x 9.75 in. x 15 in.; 21 in. Overall Length; Aluminized Steel;
  • 80 Series(TM) Cross-Flow Muffler
  • Product Attributes:
    • Tip Quantity: 0
    • Muffler Type: Reflection
    • Outlet Position: Dual
    • Inlet Diameter: 2.500 In.
    • Sound Level: Aggressive
    • WARNING CA Proposition 65: No
    • Fitment: Universal
    • Body Width: 9.750 In.
    • Inlet Type: Single Offset
    • Body Length: 15.000 In.
    • Inlet Outside Diameter: 2.500 In.
    • Inlet Connection Type: Pipe
    • Outlet Diameter: 2.500 In.
    • Mount Type: Uses New Hangers (not Included)
    • Automotive Item Grade: High Performance
    • Outlet Connection Type: Pipe
    • Muffler Series: 80 Series Crossflow
    • Overall Length: 21.000 In.
    • Inlet Inside Diameter: 2.500 In.
    • Outlet Outside Diameter: 2.500 In.
    • Main Piping Diameter: 2.500 In.
    • Shape: Oval
    • Inlet Position: Offset
    • Outlet Type: Dual Opposite End Outlet
  • Features:
    • Durable Fully Welded 16ga Aluminized Steel
    • 3 Year Limited Warranty
    • Aggressive And Powerful Exterior Exhaust Tone
    • Notable Interior Resonance
    • Cross Flow Applications
    • The Original Two Chamber Design
    • Premium Flowmaster Quality
  • 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.
  • Suggested Purchase Quantity: 2
    • Most jobs typically require 2 of this item.

Additional Fitment Information:
Vehicle Block CC Engine CID
1990 - Pontiac Firebird V - 6 Cyl 3.1L 189

Flowmaster
  • 2.5 in. Offset Inlet/Dual Outlet; Case Dimensions 4 in. x 9.5 in. x 15 in.; 21 in. Overall Length; 409 Stainless Steel Not Direct Fit-Some Adaptation Required
  • 80 Series™ Cross-Flow Muffler; 2.5 in. Offset Inlet/Dual Outlet; Case Dimensions 4 in. x 9.5 in. x 15 in.; 21 in. Overall Length; 409 Stainless Steel;
  • 80 Series™ Cross-Flow Muffler
  • Product Attributes:
    • Tip Quantity: 0
    • Muffler Type: Reflection
    • Outlet Position: Dual
    • Inlet Diameter: 2.500 In.
    • Sound Level: Aggressive
    • WARNING CA Proposition 65: Yes
    • Fitment: Universal
    • Body Width: 9.750 In.
    • Inlet Type: Single Offset
    • Body Length: 15.000 In.
    • Inlet Outside Diameter: 2.500 In.
    • Inlet Connection Type: Pipe
    • Outlet Diameter: 2.500 In.
    • Mount Type: Uses Factory Hangers
    • Automotive Item Grade: High Performance
    • California Proposition 65 Chemical Name 2: Chromium (hexavalent Compounds)
    • Outlet Connection Type: Pipe
    • California Proposition 65 Chemical Name 1: Nickel (metallic)
    • WARNING CA Proposition 65 Message: Warning: Cancer And Reproductive Harm - Www.p65warnings.ca.gov
    • Muffler Series: 80 Series Crossflow
    • Overall Length: 21.000 In.
    • Inlet Inside Diameter: 2.500 In.
    • Outlet Outside Diameter: 2.500 In.
    • Main Piping Diameter: 2.500 In.
    • Shape: Oval
    • Inlet Position: Offset
    • Outlet Type: Dual Outlet
  • Features:
    • Durable Fully Welded 16ga Aluminized Steel
    • Limited Lifetime Warranty
    • Aggressive And Powerful Exterior Exhaust Tone
    • Notable Interior Resonance
    • 1984 to 2002 Camaro/Firebird/Buick Grand National
    • Cross Flow Applications
    • The Original Two Chamber Design
    • Premium Flowmaster Quality
  • 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, this is an excellent replacement for Camaros and Firebirds with transverse mufflers. Constructed of 16 gauge 409S stainless steel and fully MIG welded for maximum durability.
  • Suggested Purchase Quantity: 2
    • Most jobs typically require 2 of this item.

This Part Fits the Following OEM/Substitute Numbers:
12265, 12266, 17266, 42583

Additional Fitment Information:
Vehicle Block CC Engine CID
1990 - Pontiac Firebird V - 6 Cyl 3.1L 189

Flowmaster
  • 2.5 in. Offset Inlet/Dual Outlet; Case Dimensions 4 in. x 9.75 in. x 15 in.; 21 in. Overall Length; Aluminized Steel Not Direct Fit-Some Adaptation Required
  • 80 Series™ Cross-Flow Muffler; 2.5 in. Offset Inlet/Dual Outlet; Case Dimensions 4 in. x 9.75 in. x 15 in.; 21 in. Overall Length; Aluminized Steel;
  • 80 Series™ Cross-Flow Muffler
  • Product Attributes:
    • Tip Quantity: 0
    • Muffler Type: Reflection
    • Outlet Position: Dual
    • Inlet Diameter: 2.500 In.
    • Sound Level: Aggressive
    • WARNING CA Proposition 65: No
    • Fitment: Universal
    • Body Width: 9.750 In.
    • Inlet Type: Single Offset
    • Body Length: 15.000 In.
    • Inlet Outside Diameter: 2.500 In.
    • Inlet Connection Type: Pipe
    • Outlet Diameter: 2.500 In.
    • Mount Type: Uses New Hangers (not Included)
    • Automotive Item Grade: High Performance
    • Outlet Connection Type: Pipe
    • Muffler Series: 80 Series Crossflow
    • Overall Length: 21.000 In.
    • Inlet Inside Diameter: 2.500 In.
    • Outlet Outside Diameter: 2.500 In.
    • Main Piping Diameter: 2.500 In.
    • Shape: Oval
    • Inlet Position: Offset
    • Outlet Type: Dual Opposite End Outlet
  • Features:
    • Durable Fully Welded 16ga Aluminized Steel
    • 3 Year Limited Warranty
    • Aggressive And Powerful Exterior Exhaust Tone
    • Notable Interior Resonance
    • Cross Flow Applications
    • The Original Two Chamber Design
    • Premium Flowmaster Quality
  • 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.
  • Suggested Purchase Quantity: 2
    • Most jobs typically require 2 of this item.

Additional Fitment Information:
Vehicle Block CC Engine CID
1990 - Pontiac Firebird V - 6 Cyl 3.1L 189
Showing 1 - 4 of 4 products

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