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1991 Pontiac Firebird Exhaust System



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Flowmaster Exhaust System - American Thunder Cat Back - Single;Dual Rear Exit;Incl. 3 in. Tailpipes / 2.5 in. Flanged Cat / 80 Series(TM) Crossflow Muffler / 3 in. Logo Embossed Stainless Tips;
Sale Price: $375.35
with FREE Shipping
(2) In Stock
Part Number: 4668-03159723
Notes: American Thunder Cat Back; Single;Dual Rear Exit;Incl. 3 in. Tailpipes / 2.5 in. Flanged Cat / 80 Series(TM) Crossflow Muffler / 3 in. Logo Embossed Stainless Tips;
Features:
  • 3 Year Limited Warranty
  • Connects After Factory Catalytic Converter
  • Dual Out Rear Exit
  • Dyno Tuned for Maximum Performance
  • Incl. Hangers and Hardware For Easy Installation
  • Mandrel Bent 16ga Aluminized Tubing
  • Moderate Exterior Exhaust Tone
  • Premium Flowmaster Quality
Condition: New

Shipping Options:
Free Ground Shipping

This Product Fits the Following: Warehouse: F
Vehicle Sub Model Engine
• 1991 Pontiac Firebird Base  5.0L V8 
• 1991 Pontiac Firebird Formula  5.7L V8 
• 1991 Pontiac Firebird Trans Am  5.7L V8 
• 1991 Pontiac Firebird Trans Am GTA  5.7L V8 



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(Read reviews)
Flowmaster Exhaust System - American Thunder Cat Back - Single;Dual Rear Exit;Incl. 3 in. Tailpipes / 2.5 in. Flanged Cat / 80 Series(TM) Crossflow Muffler / 3 in. Logo Embossed Stainless Tips - 409S SS;
Sale Price: $469.69
with FREE Shipping
(1) In Stock
Part Number: 4668-03188989
Notes: American Thunder Cat Back; Single;Dual Rear Exit;Incl. 3 in. Tailpipes / 2.5 in. Flanged Cat / 80 Series(TM) Crossflow Muffler / 3 in. Logo Embossed Stainless Tips; 409S SS;
Features:
  • Cat Back System
  • Dual Rear Exit
  • Dyno Tuned for Maximum Performance
  • Incl. Hangers and Hardware For Easy Installation
  • Limited Lifetime Warranty
  • Mandrel Bent 16 Gauge 409 Stainless Tubing
  • Moderate Exterior Exhaust Tone
  • Premium Flowmaster Quality
Condition: New

Shipping Options:
Free Ground Shipping

This Product Fits the Following: Warehouse: F
Vehicle Sub Model Engine
• 1991 Pontiac Firebird Formula  5.7L V8 
• 1991 Pontiac Firebird Trans Am  5.7L V8 
• 1991 Pontiac Firebird Trans Am GTA  5.7L V8 



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Image is not vehicle specific



(Read reviews)
Flowmaster Exhaust System - American Thunder Cat Back - Single;Dual Rear Exit;Incl. 3 in. Tailpipes / 3 in. Flanged Cat / 80 Series(TM) Crossflow Muffler / 3 in. Logo Embossed Stainless Tips;
Sale Price: $428.32
with FREE Shipping
(1) In Stock
Part Number: 4668-03159724
Notes: American Thunder Cat Back; Single;Dual Rear Exit;Incl. 3 in. Tailpipes / 3 in. Flanged Cat / 80 Series(TM) Crossflow Muffler / 3 in. Logo Embossed Stainless Tips;
Features:
  • 3 Year Limited Warranty
  • Connects After Factory Catalytic Converter
  • Dual Out Rear Exit
  • Dyno Tuned for Maximum Performance
  • Incl. Hangers and Hardware For Easy Installation
  • Mandrel Bent 16ga Aluminized Tubing
  • Moderate Exterior Exhaust Tone
  • Premium Flowmaster Quality
Condition: New

Shipping Options:
Free Ground Shipping

This Product Fits the Following: Warehouse: F
Vehicle Sub Model Engine
• 1991 Pontiac Firebird Base  5.0L V8 
• 1991 Pontiac Firebird Formula  5.7L V8 
• 1991 Pontiac Firebird Trans Am  5.7L V8 
• 1991 Pontiac Firebird Trans Am GTA  5.7L V8 



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(Read reviews)
Flowmaster Exhaust System - American Thunder Cat Back - Single;Dual Rear Exit;Incl. 3 in. Tubing / 3 in. Flanged Cat / 80 Series(TM) Crossflow Muffler / 3 in. Logo Embossed Stainless Tips;
Sale Price: $535.99
with FREE Shipping
(1) In Stock
Part Number: 4668-03187671
Notes: American Thunder Cat Back; Single;Dual Rear Exit;Incl. 3 in. Tubing / 3 in. Flanged Cat / 80 Series(TM) Crossflow Muffler / 3 in. Logo Embossed Stainless Tips;
Features:
  • Cat Back System
  • Dual Rear/Side Exit
  • Dyno Tuned for Maximum Performance
  • Incl. Hangers and Hardware For Easy Installation
  • Limited Lifetime Warranty
  • Mandrel Bent 16 Gauge 409 Stainless Tubing
  • Moderate Exterior Exhaust Tone
  • Premium Flowmaster Quality
Condition: New

Shipping Options:
Free Ground Shipping

This Product Fits the Following: Warehouse: F
Vehicle Sub Model Engine
• 1991 Pontiac Firebird Formula  5.7L V8 
• 1991 Pontiac Firebird Trans Am  5.7L V8 
• 1991 Pontiac Firebird Trans Am GTA  5.7L V8 



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(Read reviews)
Dynomax Exhaust System - Super Turbo Cat-Back - 2.5 in. System - Incl. Intermediate Pipe - Super Turbo Muffler - Tail Pipes - Clamps;
Sale Price: $242.29
(4) In Stock
Part Number: 4668-03269768
Notes: Super Turbo Cat-Back; 2.5 in. System; Incl. Intermediate Pipe; Super Turbo Muffler; Tail Pipes; Clamps;
Features:
  • Combine State Of The Art Engineering w/Quality Material
  • Continuous Roving Fiberglass Technology
  • CRF Absorbs Unwanted Interior Resonance
  • Flows Up To 700 SCFM And Supports Up To 636 HP
  • Includes The Dynomax Super Turbo Dyno Proven Muffler
  • Insures Every Part Fits Perfectly w/Quick And Easy Installation
  • Manufactured w/Precision Benders; Fixture Checked
  • Pipe Dia. Are Increased From OEM Sizes To Improve Flow
  • Pipe Dia. Are Increased From OEM Sizes To Increase Power
  • Proudly Manufactured In The USA
  • Provides Exceptional Strength And Durability
Condition: New

Shipping Options:
Ground

This Product Fits the Following: Warehouse: F
Vehicle Sub Model Engine
• 1991 Pontiac Firebird Base  3.1L V6 
• 1991 Pontiac Firebird Base  5.0L V8 VIN: E 
• 1991 Pontiac Firebird Formula  5.0L V8 VIN: E 



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Dynomax Exhaust System - Super Turbo Cat-Back - 3 in. Flare Loose Flange System - Incl. Intermediate Pipe - Super Turbo Muffler - Tail Pipes - Clamps;
Sale Price: $245.87
(1) In Stock
Part Number: 4668-03269810
Notes: Super Turbo Cat-Back; 3 in. Flare Loose Flange System; Incl. Intermediate Pipe; Super Turbo Muffler; Tail Pipes; Clamps;
Features:
  • Combine State Of The Art Engineering w/Quality Material
  • Continuous Roving Fiberglass Technology
  • CRF Absorbs Unwanted Interior Resonance
  • Flows Up To 700 SCFM And Supports Up To 636 HP
  • Includes The Dynomax Super Turbo Dyno Proven Muffler
  • Insures Every Part Fits Perfectly w/Quick And Easy Installation
  • Manufactured w/Precision Benders; Fixture Checked
  • Pipe Dia. Are Increased From OEM Sizes To Improve Flow
  • Pipe Dia. Are Increased From OEM Sizes To Increase Power
  • Proudly Manufactured In The USA
  • Provides Exceptional Strength And Durability
Condition: New

Shipping Options:
Ground

This Product Fits the Following: Warehouse: F
Vehicle Sub Model Engine
• 1991 Pontiac Firebird Formula  5.0L V8 VIN: F 
• 1991 Pontiac Firebird Formula  5.7L V8 
• 1991 Pontiac Firebird Trans Am  5.0L V8 VIN: F 
• 1991 Pontiac Firebird Trans Am  5.7L V8 
• 1991 Pontiac Firebird Trans Am GTA  5.0L V8 VIN: F 
• 1991 Pontiac Firebird Trans Am GTA  5.7L V8 



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Dynomax Exhaust System - Ultra Flo SS Cat-Back - 2.5 in. System - Incl. Intermediate Pipe - Ultra Flo Muffler - Tail Pipes - Clamps;
Sale Price: $338.46
(1) In Stock
Part Number: 4668-03269778
Notes: Ultra Flo SS Cat-Back; 2.5 in. System; Incl. Intermediate Pipe; Ultra Flo Muffler; Tail Pipes; Clamps;
Features:
  • Continuous Roving Fiberglass Technology
  • CRF Absorbs Unwanted Interior Resonance
  • Flows Up To 2000 SCFM And Supports Up To 1900 HP
  • High Quality 409 Stainless Or Aluminized Steel Pipes
  • Includes The DynoMax Ultra Flo SS Polished Dyno-Proven Muffler
  • Insures Every Part Fits Perfectly w/Quick And Easy Installation
  • Manufactured w/Precision Benders; Fixture Checked
  • Pipe Dia. Are Increased From OEM Sizes To Improve Flow
  • Proudly Manufactured In The USA
  • Provides Against Corrosion And Permanent Discoloration
Condition: New

Shipping Options:
Ground

This Product Fits the Following: Warehouse: F
Vehicle Sub Model Engine
• 1991 Pontiac Firebird Base  3.1L V6 
• 1991 Pontiac Firebird Base  5.0L V8 VIN: E 
• 1991 Pontiac Firebird Formula  5.0L V8 VIN: E 



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Image is not vehicle specific


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Image is not vehicle specific


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(Read reviews)
Borla Exhaust System - Cat-Back(TM) 3 in. Adj System - Incl. Connecting Pipes / Mufflers / Tips / Mounting Hardware / Adapters / 2.5 in. Round - 7 in. Long - Dual Round Angle-Cut - Split Rear Exit;
Sale Price: $794.82
with FREE Shipping
(1) In Stock
Part Number: 4668-03153913
Notes: Cat-Back(TM) 3 in. Adj System; Incl. Connecting Pipes / Mufflers / Tips / Mounting Hardware / Adapters / 2.5 in. Round; 7 in. Long; Dual Round Angle-Cut; Split Rear Exit;
Features:
  • Absolute Best In Performance And Durability
  • CNC Manufacturing Ensures An Accurate Fit
  • Distinctive Borla Sound Of Power
  • Ensure Maximum Flow And Power
  • Million Mile Warranty
  • Straight-Through Technology
  • Unleash Hidden Horsepower
Condition: New

Shipping Options:
Free Ground Shipping

This Product Fits the Following: Warehouse: F
Vehicle Sub Model Engine
• 1991 Pontiac Firebird Formula  5.7L V8 
• 1991 Pontiac Firebird Trans Am  5.7L V8 
• 1991 Pontiac Firebird Trans Am GTA  5.7L V8 



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(Read reviews)
Magnaflow Exhaust System - Stainless Steel Cat-Back Performance - 3.0 / 2.5 in. Tubing - 3.5 in. Polished Stainless Tip - 5 x 8 x 18 in. Muffler - Dual Split Rear Exit;
Sale Price: $534.44
with FREE Shipping
(8) In Stock
Part Number: 4668-03020774
Notes: Stainless Steel Cat-Back Performance; 3.0 / 2.5 in. Tubing; 3.5 in. Polished Stainless Tip; 5 x 8 x 18 in. Muffler; Dual Split Rear Exit;
Features:
  • 100% All Stainless Steel
  • Dyno Tested And Proven To Make Power
  • Easy To Install
  • Great Sound -Has A Smooth; Deep Tone
  • Lifetime Warranty
  • Mandrel-Bent/All Welded/Built To Last
  • Performance Gains In Horsepower And Torque
Condition: New

Shipping Options:
Free Ground Shipping

This Product Fits the Following: Warehouse: F
Vehicle Engine
• 1991 Pontiac Firebird 5.0L V8 
• 1991 Pontiac Firebird 5.7L V8 



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