1991 Pontiac Firebird Exhaust System Kits

Give your vintage vehicle’s exhaust system an upgrade with a DynoMax? dual header kit. Designed to attach to OE headers, it features a special reducer that allows for a variety of mounting options.

Product Features:

• COMPATIBILITY — Designed for 1982-89 Chevrolet Camaro and Pontiac Firebird, 305 Chevrolet small block V8 engine
• BUILD IT YOURSELF — Design and custom fabricate your own exhaust system with this kit that attaches to OE headers
• FLEXIBLE MOUNTING — Special reducer design allows for a variety of mounting options
• IMPROVED FLOW CAPACITY — Smooth bends improve flow capacity over traditional bends
• SPECS — Extra-long tailpipes with side exits with a full 2.25-in. diameter; tail pipes exit on driver’s side at bumper; dual kit runs down right-hand side between frame and driveshaft
• COMPLETE SOLUTION — Includes all the necessary clamps, hangers, gaskets, mounting hardware, intermediate, extension and tail pipes
• PREMIUM MATERIALS — Made from quality aluminized steel for durability and long life
• PREMIUM MATERIALSÿ–ÿMade from quality aluminized steel for durability and long life
• BETTER TOGETHER — Complete your system with premium DynoMax mufflers and DynoMax accessories for a complete performance exhaust system
• WARNING — Not legal for use on pollution-controlled motor vehicles; headers are for racing use only and not intended or applicable for highway use

The Street Series Stainless Performance Exhaust system delivers dyno proven power with a comfortable interior sound and performance exterior sound.

Product Features:

• Dyno-proven performance
• Durable corrosion-resistant stainless steel construction
• CNC precision robotic manufacturing techniques

The MagnaFlow Street Series Cat-Back Performance Exhaust System 16723 brings out the personality of your Car with our signature resonant, powerful engine tone and dyno-proven performance. Thanks to its fast-flowing, mandrel bent 3in. main piping and 1 Straight-Through mufflers ending in a Quad Split Rear exit with 4in. Polished Welded-On Double Wall Angle Cut Rolled Edge tips, this Car exhaust kit has the performance chops to match its sporty sound and appearance. Upgrade your ride to the next level with an exhaust that has the pipes to put other Car’s to shame. With this system your vehicle will be producing Moderate exterior and Mild interior sound levels while leaving other cars and trucks feeling envious at every stoplight. Exhaust kit 16723 features a cat-back layout that replaces your ride’s stock exhaust components from near the catalytic converter on back. Extensive 3D scanning during development has resulted in a direct-fit design that you can easily install yourself. 16723 is produced using CNC precision robotic manufacturing techniques and is backed by MagnaFlow’s 1-year limited finish warranty and limited lifetime construction warranty.

Product Features:

• Dyno-proven performance
• Durable corrosion-resistant stainless steel construction
• CNC precision robotic manufacturing techniques

The MagnaFlow Street Series Crossmember-Back Performance Exhaust System 15896 brings enhanced engine sound and dyno-proven performance to your muscle car with a healthy helping of our deep, resonant signature exhaust note at Moderate exterior and Mild interior sound levels. Thanks to its durable, corrosion resistant stainless steel design, this exhaust system will handle whatever tarmac you decide to leave your mark on. This performance exhaust kit features a crossmember-back layout designed to replace your exhaust system from the crossmember on back. With its fast-flowing, mandrel bent 2.5in. main piping and 2 Straight-Through mufflers ending in a Dual Split Rear exit that you can enhance with tips of your choosing, your muscle car will be sounding as awesome as it looks. Extensive 3D scanning during development has resulted in a direct-fit design that you can easily install yourself. 15896 is produced using CNC precision robotic manufacturing techniques and is backed by MagnaFlow’s limited lifetime construction warranty.

Product Features:

• Dyno-proven performance
• Durable corrosion-resistant stainless steel construction
• CNC precision robotic manufacturing techniques

Super Competition Cat-Back System Black Finish Mufflers with Aluminized Tubing

Product Features:

• Exit At Stock Locations
• Mandrel Bent Not Press Bent
• Mandrel Bent Not Press Bent
• Maximum Flow
• Uses Existing Stock Hangers
• Large Diameter 16 Ga. Aluminum Tubing
• Low Back Pressure and Long Life
• Easy Installation

For the person looking for a complete Header-back dual exhaust system with an aggressive tone. With easy fit in mind, Flowmaster’s America Thunder system for GM F-Body cars includes specially-selected Super 44 mufflers to make your Camaro or Firebird come alive. This Header-back dual exhaust system uses 2.50 in. 409S stainless steel tubing (Backed by our 10-year warranty!) and a durable H-pipe design that delivers improved throttle response, power and mileage. American Thunder systems deliver a moderate to aggressive interior and exterior tone and are suited to the enthusiast who wants their performance to be heard. Like all Flowmaster systems, the benefits include improved throttle response, power and mileage. Designed for an easy fit, these systems include all necessary parts and hardware for easy installation.

For the person who is looking for a complete Header-back dual exhaust system with an aggressive tone. With easy fit in mind, these systems are mandrel bent for maximum performance and include specially selected mufflers. American Thunder systems deliver a moderate to aggressive interior and exterior tone and are suited to the enthusiast who wants their performance to be heard. Like all Flowmaster systems, the benefits include improved throttle response, power and mileage. Designed for an easy fit, these systems include all necessary parts and hardware for easy installation.

Give your Chevrolet Camaro or Pontiac Firebird’s exhaust system an upgrade with a DynoMax® Super Turbo® dual 2.5-in. cat-back exhaust system. Features a DynoMax Super Turbo muffler that channels exhaust flow, reduces turbulence and absorbs unwanted interior resonance for a mellow tone.

Product Features:

• COMPATIBILITY — Designed for 1986-1991 Chevrolet Camaro and Pontiac Firebird; see product information for compatibility and engine specs
• COMPLETE SOLUTION — Includes DynoMax Super Turbo muffler, pipes and clamps
• EASY TO INSTALL — Direct-fit pre-assembled solution with welded hangers, pipes and clamps for easy installation that doesn¿t require specialized fabrication and/or welding
• EASY TO INSTALL — Direct-fit pre-assembled solution with welded hangers, pipes and clamps for easy installation that doesn┐t require specialized fabrication and/or welding
• IMPROVED FLOW CAPACITY — Aluminized-steel tubing with mandrel bends improves flow capacity over traditional bends while increased pipe diameter from OE sizes increases flow and power
• PRECISION DESIGN — Exclusive flow director technology channels exhaust flow and reduces turbulence on most applications; dyno proven to flow up to 385 SCFM
• PREMIUM PERFORMANCE — Large flow tubes improve exhaust flow and reduce backpressure
• ENGINEERED TO LAST¿– Aluminized-steel muffler reduces corrosion and internal drainage system reduces moisture collection
• ENGINEERED TO LAST┐– Aluminized-steel muffler reduces corrosion and internal drainage system reduces moisture collection
• SPECS — 2.5-in. Straight cut tail pipes

For the person who is looking for a complete Header-back dual exhaust system with an aggressive tone. With easy fit in mind, these systems are mandrel bent for maximum performance and include specially selected mufflers. American Thunder systems deliver a moderate to aggressive interior and exterior tone and are suited to the enthusiast who wants their performance to be heard. Like all Flowmaster systems, the benefits include improved throttle response, power and mileage. Designed for an easy fit, these systems include all necessary parts and hardware for easy installation.

The Street Series Stainless Performance Exhaust system delivers dyno proven power with a comfortable interior sound and performance exterior sound.

Product Features:

• Dyno-proven performance
• Durable corrosion-resistant stainless steel construction
• CNC precision robotic manufacturing techniques

For the person looking for a complete Header-back dual exhaust system with an aggressive tone. With easy fit in mind, Flowmaster’s America Thunder system for GM F-Body cars include specially-selected Super 44 mufflers to make your Camaro or Firebird come alive. This Header-back dual exhaust system uses 2.50 in. 409S stainless steel tubing, backed by our 10-year warranty! And a durable H-pipe design that delivers improved throttle response, power and mileage. American Thunder systems deliver a moderate to aggressive interior and exterior tone and are suited to the enthusiast who wants their performance to be heard. Like all Flowmaster systems, the benefits include improved throttle response, power and mileage. Designed for an easy fit, these systems include all necessary parts and hardware for easy installation.

The Street Series Stainless Performance Exhaust system delivers dyno proven power with a comfortable interior sound and performance exterior sound.

Product Features:

• Dyno-proven performance
• Durable corrosion-resistant stainless steel construction
• CNC precision robotic manufacturing techniques

Upgrade your vintage muscle car’s exhaust system with a Thrush® Turbo Header Back System. Featuring a Thrush Turbo muffler with reversible flow chambers, spun-locked heads and aluminized construction, it has everything needed for installation.

Product Features:

• ENGINEERED TO LAST — Features 2.5-in. aluminized smooth bend pipes
• CLASSIC SOUND — Features Thrush® Turbo muffler with tri-flow design with reversible flow chambers for that classic Thrush sound
• STRONG AND DURABLE — Muffler has a 100% aluminized-coated shell and spun lock heads for long life
• EASY TO INSTALL — Bolt-on installation for an easy upgrade; no fabrication or welding required

The MagnaFlow Street Series Cat-Back Performance Exhaust System 15684 brings out the personality of your Car with our signature resonant, powerful engine tone and dyno-proven performance. Thanks to its fast-flowing, mandrel bent 3in. main piping and 1 Straight-Through mufflers ending in a Dual Split Rear exit with 3.5in. Polished Welded-On Single Wall Angle Cut Cut Edge tips, this Car exhaust kit has the performance chops to match its sporty sound and appearance. Upgrade your ride to the next level with an exhaust that has the pipes to put other Car’s to shame. With this system your vehicle will be producing Moderate exterior and Mild interior sound levels while leaving other cars and trucks feeling envious at every stoplight. Exhaust kit 15684 features a cat-back layout that replaces your ride’s stock exhaust components from near the catalytic converter on back. Extensive 3D scanning during development has resulted in a direct-fit design that you can easily install yourself. 15684 is produced using CNC precision robotic manufacturing techniques and is backed by MagnaFlow’s 1-year limited finish warranty and limited lifetime construction warranty.

Product Features:

• Dyno-proven performance
• Durable corrosion-resistant stainless steel construction
• CNC precision robotic manufacturing techniques

For the person who is looking for a complete Header-back dual exhaust system with an aggressive tone. With easy fit in mind, these systems are mandrel bent for maximum performance and include specially selected mufflers. American Thunder systems deliver a moderate to aggressive interior and exterior tone and are suited to the enthusiast who wants their performance to be heard. Like all Flowmaster systems, the benefits include improved throttle response, power and mileage. Designed for an easy fit, these systems include all necessary parts and hardware for easy installation.

Super Competition Cat-Back Exhaust System

Super Competition Cat-Back System Black Finish Mufflers with Aluminized Tubing

Product Features:

• Exit At Stock Locations
• Mandrel Bent Not Press Bent
• Mandrel Bent Not Press Bent
• Maximum Flow
• Uses Existing Stock Hangers
• Large Diameter 16 Ga. Aluminum Tubing
• Low Back Pressure and Long Life
• Easy Installation

The MagnaFlow Street Series Crossmember-Back Performance Exhaust System 15895 brings enhanced engine sound and dyno-proven performance to your muscle car with a healthy helping of our deep, resonant signature exhaust note at Moderate exterior and Mild interior sound levels. Thanks to its durable, corrosion resistant stainless steel design, this exhaust system will handle whatever tarmac you decide to leave your mark on. This performance exhaust kit features a crossmember-back layout designed to replace your exhaust system from the crossmember on back. With its fast-flowing, mandrel bent 2.5in. main piping and 1 Straight-Through mufflers ending in a Dual Split Rear exit that you can enhance with tips of your choosing, your muscle car will be sounding as awesome as it looks. Extensive 3D scanning during development has resulted in a direct-fit design that you can easily install yourself. 15895 is produced using CNC precision robotic manufacturing techniques and is backed by MagnaFlow’s limited lifetime construction warranty.

Product Features:

• Dyno-proven performance
• Durable corrosion-resistant stainless steel construction
• CNC precision robotic manufacturing techniques

The MagnaFlow 1975-1981 Pontiac Firebird Street Series Cat-Back Performance Exhaust System brings out the personality of your 4.9L, 5.0L, 5.7L, 6.6L 1975-1981 Pontiac Firebird with our signature resonant, powerful engine tone and dyno-proven performance. Thanks to its fast-flowing, mandrel bent 2.5in. main piping and 2 Straight-Through mufflers ending in a Dual Split Rear exit with 2.25in. Polished Clamp-On Single Wall Turndown Cut Edge tips, this Pontiac Firebird exhaust kit has the performance chops to match its sporty sound and appearance. Upgrade your ride to the next level with an exhaust that has the pipes to put other Pontiac Firebird’s to shame. With this system your vehicle will be producing Moderate exterior and Mild interior sound levels while leaving other cars and trucks feeling envious at every stoplight. Exhaust kit 16830 features a cat-back layout that replaces your ride’s stock exhaust components from near the catalytic converter on back. Extensive 3D scanning during development has resulted in a direct-fit design that you can easily install yourself. 16830 is produced using CNC precision robotic manufacturing techniques and is backed by MagnaFlow’s 1-year limited finish warranty and limited lifetime construction warranty.

Product Features:

• Dyno-proven performance
• Durable corrosion-resistant stainless steel construction
• CNC precision robotic manufacturing techniques

The MagnaFlow Street Series Crossmember-Back Performance Exhaust System 15899 brings enhanced engine sound and dyno-proven performance to your muscle car with a healthy helping of our deep, resonant signature exhaust note at Aggressive exterior and Moderate interior sound levels. Thanks to its durable, corrosion resistant stainless steel design, this exhaust system will handle whatever tarmac you decide to leave your mark on. This performance exhaust kit features a crossmember-back layout designed to replace your exhaust system from the crossmember on back. With its fast-flowing, mandrel bent 3in. main piping and 2 Straight-Through mufflers ending in a Dual Split Rear exit that you can enhance with tips of your choosing, your muscle car will be sounding as awesome as it looks. Extensive 3D scanning during development has resulted in a direct-fit design that you can easily install yourself. 15899 is produced using CNC precision robotic manufacturing techniques and is backed by MagnaFlow’s limited lifetime construction warranty.

Product Features:

• Dyno-proven performance
• Durable corrosion-resistant stainless steel construction
• CNC precision robotic manufacturing techniques

The MagnaFlow Street Series Cat-Back Performance Exhaust System 15693 brings out the personality of your Car with our signature resonant, powerful engine tone and dyno-proven performance. Thanks to its fast-flowing, mandrel bent 2.5in. main piping and 1 Straight-Through mufflers ending in a Dual Split Rear exit with 3.5in. Polished Welded-On Single Wall Angle Cut Cut Edge tips, this Car exhaust kit has the performance chops to match its sporty sound and appearance. Upgrade your ride to the next level with an exhaust that has the pipes to put other Car’s to shame. With this system your vehicle will be producing Moderate exterior and Mild interior sound levels while leaving other cars and trucks feeling envious at every stoplight. Exhaust kit 15693 features a cat-back layout that replaces your ride’s stock exhaust components from near the catalytic converter on back. Extensive 3D scanning during development has resulted in a direct-fit design that you can easily install yourself. 15693 is produced using CNC precision robotic manufacturing techniques and is backed by MagnaFlow’s 1-year limited finish warranty and limited lifetime construction warranty.

Product Features:

• Dyno-proven performance
• Durable corrosion-resistant stainless steel construction
• CNC precision robotic manufacturing techniques