1978 Pontiac Firebird Exhausts

1 - 60 of 180page 1 of 3
show: 
sort by: 
view: 
    • (0 reviews)
      $874.24$699.39
      Pontiac Firebird 5.0L / 5.7L / 6.6L 1978, Street Series Stainless Steel Cat-Back Exhaust System by MagnaFlow®, MODERATE SOUND. Dual Split Rear Exit. 2.5" Tubing. 4" x 9" x 14" Muffler. 2.5" Turndown Tip. The Street Series is...
      # 20206661
    • (0 reviews)
      $918.20$734.56
      Pontiac Firebird 5.0L / 5.7L / 6.6L 1978, American Thunder™ Stainless Steel Dual Header-Back Exhaust System by Flowmaster®, AGGRESSIVE SOUND. 50 Series Slim-Line Mufflers. Dual Side Exit. 2.5" Tubing. Includes H-Pipe. American...
      # 23234748
    • (0 reviews)
      $361.09$288.87
      Pontiac Firebird 1978, Super Turbo™ Muffler-Back Exhaust System by DynoMax®. Stainless Steel. Aluminized. Dual. Mufflers Under Floor Pan. Dyno proven to flow up to 70 SCFM. 2 1/4" Dual Extension Pipes, 2 1/2" Dual Tail Pipes and...
      Constructed to increase horsepower and torque thanks to improved exhaust flowThe Super Turbo muffler will maintain a mellow performance tone
      # 18221072
    • (0 reviews)
      $104.34$83.47
      Pontiac Firebird 5.7L 1978, Catalytic Converter by Bosal®. 2.25" Inlet. If you’re in need of a replacement catalytic converter, you can’t do better than Bosal. They’re a leading supplier to vehicle manufacturers and use...
      Constructed to meet your vehicle’s specific emissions requirementsRadial flow concept allows for an even distribution of the gas flow in the converter for the optimal conversion of harmful gases
      # 36756681
    • (0 reviews)
      $154.51from $123.61 - $288.12
      Pontiac Firebird 1978, Direct Fit Pre-OBDII Catalytic Converter by MagnaFlow®. If your car needs replacement, install one that will get you through the smog check and give you more horsepower. This converter will directly replace...
      # 22211390
    • (0 reviews)
      $195.48$156.38
      Pontiac Firebird 1978, Direct Fit Stainless Steel Catalytic Converter by Flowmaster®, 2.5" Inlet / 2.5" Outlet. 25" Length. 6.25" Width. The new Flowmaster replacement catalytic converters are made to meet and exceed all federal...
      # 34452168
    • (0 reviews)
      $171.78$137.42
      Pontiac Firebird 1978, 240 Series Stainless Steel Oval Catalytic Converter by Flowmaster®, 2.25" Inlet / 2.25" Outlet. 16.5" Length. 7.25" Width. Includes Heat Shield. The new Flowmaster replacement catalytic converters are made to...
      # 870472
    • (0 reviews)
      $145.60from $116.48 - $121.96
      Pontiac Firebird 5.0L / 5.7L / 6.6L 1978, 80 Series Cross-Flow™ Muffler by Flowmaster®, AGGRESSIVE SOUND, 2.5" Offset Inlet / 2.5" Dual Outlet. This is the ideal muffler for Camaros and Firebirds, providing true dual exhaust...
      # 851208
    • (0 reviews)
      $79.46from $63.57 - $66.27
      Pontiac Firebird 1978, Super Turbo™ Muffler by DynoMax®. Stainless Steel. Aluminized. High Performance Part. Combination Type. Inside Diameter. Offset. Pipe Connection. Inside Diameter. Oval. Get improved exhaust flow and reduced...
      Constructed to increase horsepower and torque thanks to improved exhaust flowAluminized steel Super Turbo muffler maintains a mellow performance tone
      # 18221013
    • (0 reviews)
      $194.10$155.28
      Pontiac Firebird 1978, Ultra Flo™ Polished Stainless Steel Muffler by DynoMax®. Stainless Steel. Bare. High Performance Part. Absorption Type. ID: 2 1/2". Inside Diameter. Offset. Pipe Connection. OD: 2 1/2". Inside Diameter....
      Unrestricted, straight-through design for a dyno-proven increase in horsepower and torqueEngineered to give your car a deep performance tone
      # 18222675
    • (0 reviews)
      $170.50from $136.40 - $176.28
      Pontiac Firebird 1978, Prebend Tailpipes by Flowmaster®, 1 Pair. 2.5" Tubing Diameter. Rear Exit. These tailpipes are bare dual-out rear exit pipes and are sold in pairs. Hardware and hangers are not included in kit. Fitments for...
      # 870173
    • (0 reviews)
      $40.90from $32.72 - $34.08
      Pontiac Firebird 1978, Tail Pipe by DynoMax®. Direct Fit. Stainless Steel. Aluminized. Pipe Connection. Pipe D: 2.50". Pipe diameters are increased from OEM sizes to improve flow and increase power. With their great selection of...
      Designed to ensure unrestricted exhaust flowDirect fit – no modifications needed to install
      # 18222212
    • (0 reviews)
      $10.44from $8.35 - $16.70
      Pontiac Firebird 1978, Exhaust Header Gaskets by Spectre Performance®. Rooted in racing, Spectre Performance designs and builds every product with the same goal in mind - the best performance in the market proven on the racetrack!...
      High-tech engine parts for the most power and best performanceThe finest exterior and interior parts for superior appearance and functionality
      # 12056189
    • (0 reviews)
      $13.81from $11.05 - $92.46
      Pontiac Firebird 5.0L / 5.7L 1978, Exhaust Valve by COMP Cams®. Sportsman Stainless Steel Street Exhaust Valves; Single Lock Groove; Head Dia. 1.6 in.; Stem Size 11/32 in.
      # 14707087
    • (0 reviews)
      $13.81from $11.05 - $88.13
      Pontiac Firebird 5.0L / 5.7L 1978, Exhaust Valve by COMP Cams®. Sportsman Stainless Steel Street Exhaust Valve; Single Lock Groove; Length 5.025 in.; Head Dia. 1.6 in.; Stem Size 11/32 in.
      # 14323113
    • (0 reviews)
      $99.96from $79.97 - $103.10
      Pontiac Firebird 1978, Exhaust Manifold by Dorman®, 1 per Pack, 1 per Pack. Round Port. Material: Cast Iron. Bolt Hole Quantity: 6. With Installation Hardware. More like a complete kit than a single part, many of the Exhaust...
      Includes heat-shield for protection of hoses, wiring, and other engine componentsCast iron or stainless tubular construction protects against warping and/or cracking
      # 16500269
    • (0 reviews)
      $73.20from $58.56 - $119.22
      Pontiac Firebird 1978, Universal Catalytic Converter by Walker®. This part features the correct load of precious metals to ensure the proper limitation of tailpipe emissions. It is designed to meet the EPA policy and emission...
      Constructed to meet your vehicle’s specific emissions requirementsFeatures stainless steel body with aluminized steel pipe and heat shields
      # 17733442
    • (0 reviews)
      $13.13$10.50
      Pontiac Firebird K Engine VIN code 1978, Spring Bolt Kit by Walker®. 1 Inlet, 1 Outlet. With their extensive selection of accessories and hardware for the exhaust system, Walker will provide you with everything needed to do the...
      Makes installation quick and easyOptimal OE-style fit and quality
      # 35427193
    • (0 reviews)
      $128.11from $102.49 - $109.91
      Pontiac Firebird 1978, EPA Direct Fit Undercar Catalytic Converter by Eastern®. Series: Standard. One Front Gasket. If you need to replace your failed or damaged catalytic converter, this product is the right choice. Designed...
      Direct OEM replacementConverts harmful engine emissions to less dangerous gases and water vapor
      # 17579873
    • (0 reviews)
      $49.50from $39.60 - $59.36
      Pontiac Firebird 1978, EPA Universal Fit Undercar Catalytic Converter by Eastern®. Series: Standard. Whether your catalytic converter is damaged by road debris or failed due to an engine problem, you definitely need a new one, and...
      Universal fitConverts harmful engine emissions to less dangerous gases and water vapor
      # 17579876
    • (0 reviews)
      $52.91$42.33
      Pontiac Firebird K / Z Engine VIN code 1978, Quiet-Flow™ Muffler by Walker®. Body Material - Steel, Color / Finish - Aluminized, Dimensions - 11" L x 7.75" W x 3.25" H, Oval Shape, Inlet Diameter - 2" ID, Outlet Diameter - 2.25"...
      Designed for OE equivalent sound and precision fitSpun-locked heads for a proper resistance to backfire
      # 18162205
    • (0 reviews)
      $30.34from $24.27 - $24.30
      Pontiac Firebird K / Z Engine VIN code 1978, Extension Pipe by Walker®. If you want exhaust piping that delivers precise OE-style fit, appearance, and reliability, this part is your number one choice. Every pipe is vehicle-specific...
      Designed to directly replace the factory partMade with precision benders and fixture checked
      # 18131540
    • (0 reviews)
      $25.85$20.68
      Pontiac Firebird K Engine VIN code 1978, Front Pipe by Walker®. Material - Steel, Finish - Aluminized, 18" Overall Length, 1 Inlets, Inlet Connection Type - 2 Bolt Loose Flange with Spherical Flare, 1 Outlets, Outlet Connection...
      Designed to directly replace the factory partMade with precision benders and fixture checked
      # 18135240
    • (0 reviews)
      $42.10$33.68
      Pontiac Firebird 1978, Intermediate Pipe by Walker®. If you want exhaust piping that delivers precise OE-style fit, appearance, and reliability, this part is your number one choice. Every pipe is vehicle-specific and is...
      Designed to directly replace the factory partMade with precision benders and fixture checked
      # 35483446
    • (0 reviews)
      $34.08from $27.26 - $77.16
      Pontiac Firebird 1978, Tail Pipe by Walker®. If you want exhaust piping that delivers precise OE-style fit, appearance, and reliability, this part is your number one choice. Every pipe is vehicle-specific and is manufactured using...
      Designed to directly replace the factory partMade with precision benders and fixture checked
      # 18179615
    • (0 reviews)
      $92.84from $74.27 - $75.34
      Pontiac Firebird V8 1978, Y Pipe by Walker®. If you want exhaust piping that delivers precise OE-style fit, appearance, and reliability, this part is your number one choice. Every pipe is vehicle-specific and is manufactured using...
      Designed to directly replace the factory partMade with precision benders and fixture checked
      # 18183442
    • (0 reviews)
      $5.95from $4.76 - $6.78
      Pontiac Firebird 1978, Exhaust Flange Stud and Nut by Dorman®. Dorman’s Exhaust Flange Stud & Nut provides you with the proper flange stud and nut for replacing your manifold. Save time and energy by having the right hardware on...
      Direct replacement for a proper fit every timeDurable steel construction
      # 31711008
    • (0 reviews)
      $7.85$6.28
      Pontiac Firebird 1978, Front Metal Exhaust Manifold Bolt and Spring by Dorman®. Exhaust manifold fastener kits provide a time-saving solution for repairing the manifold. Each kit is designed for direct replacement of rusted or...
      New hardware helps fix exhaust leaksDepending on the application, kits include hardware to securely attach the manifold to the exhaust system
      # 31664922
    • (0 reviews)
      $3.48from $2.78 - $6.40
      Pontiac Firebird 1978, Bracket by Walker®. With their extensive selection of accessories and hardware for the exhaust system, Walker will provide you with everything needed to do the complete exhaust job. When you choose Walker...
      Makes installation quick and easyOptimal OE-style fit and quality
      # 18119070
    • (0 reviews)
      $2.03from $1.62 - $2.26
      Pontiac Firebird 1978, Clamp by Walker®. With their extensive selection of accessories and hardware for the exhaust system, Walker will provide you with everything needed to do the complete exhaust job. When you choose Walker...
      Makes installation quick and easyOptimal OE-style fit and quality
      # 18128292
    • (0 reviews)
      $15.45$12.36
      Pontiac Firebird K Engine VIN code 1978, Gasket by Walker®. Material - High Temperature Graphite with Wire Mesh Core, Donut Style, 0.66" Thickness, Port Dimensions - 2.33" L x 2.33" W, 1 Inlet, 1 Outlet. With their extensive...
      Makes installation quick and easyOptimal OE-style fit and quality
      # 18145475
    • (0 reviews)
      $10.95from $8.76 - $9.60
      Pontiac Firebird 1978, Hanger by Walker®. With their extensive selection of accessories and hardware for the exhaust system, Walker will provide you with everything needed to do the complete exhaust job. When you choose Walker...
      Makes installation quick and easyOptimal OE-style fit and quality
      # 18147461
    • (0 reviews)
      $3.33$2.66
      Pontiac Firebird K Engine VIN code 1978, Insulator by Walker®. 1.75" Exhaust Hanger Overall Length, 1 Inlet, 1 Outlet. With their extensive selection of accessories and hardware for the exhaust system, Walker will provide you with...
      Makes installation quick and easyOptimal OE-style fit and quality
      # 18151803
    • (0 reviews)
      $30.94from $24.75 - $30.70
      Pontiac Firebird V8 1978, Seal-4-Good™ Exhaust Header Gaskets by Taylor Cable®. Don’t put up with that ominous, unmistakable “tick, tick, tick” sound of an exhaust manifold leak. If it isn’t leaking air into the manifold...
      # 9385439
    • (0 reviews)
      $22.80from $18.24 - $20.30
      Pontiac Firebird V8 1978, XX Carbon™ Exhaust Header Gaskets by Taylor Cable®. These extreme high-temperature gaskets are well-suited for highly-modified engines: turbocharged, supercharged, nitrous or fuel. This is a premium,...
      # 9387519
    • (0 reviews)
      $2.78from $2.22 - $9.52
      Pontiac Firebird 1978, Exhaust Pipe Flange Gasket by Fel-Pro®. If you need durable gaskets to prevent leaks on your vehicle, Fel-Pro is the way to go. Engineered using the latest technologies and global engineering resources, the...
      Direct OEM replacement for a proper fitEnsure reliable sealing performance
      # 19071493
    • (0 reviews)
      $18.74$14.99
      Pontiac Firebird Esprit / Formula 5.0L / 5.7L 1978, Premium™ Header Gasket Set 1.63" Diameter by BBK Performance®. These premium steel core graphite gaskets are flexible for a long lasting leak-proof seal even when cylinder head...
      # 10961519
    • (0 reviews)
      $41.48$33.18
      Pontiac Firebird 5.0L / 5.7L 1978, Aluminum Exhaust Gasket Set by Mr. Gasket®. Small Block. Whatever exhaust system you install on your engine, whether it’s a set of chromed headers or simply a set of cleaned up flat black rams...
      # 12327635
    • (0 reviews)
      $27.83$22.26
      Pontiac Firebird Z Engine VIN code 1978, Exhaust Gasket Set by Mr. Gasket®. Port Dimensions 1.5" Width x 1.94" Height. D Port Including Ram Air III. Whatever exhaust system you install on your engine, whether it’s a set of...
      # 12304744
    • (0 reviews)
      $32.20$25.76
      Pontiac Firebird 5.0L / 5.7L 1978, MLS Exhaust Gasket by Mr. Gasket®. Whatever exhaust system you install on your engine, whether it’s a set of chromed headers or simply a set of cleaned up flat black rams horn manifolds,...
      # 12331693
    • (0 reviews)
      $43.20from $34.56 - $38.92
      Pontiac Firebird 1978, Ultra-Seal™ Exhaust Gasket Set by Mr. Gasket®. Whatever exhaust system you install on your engine, whether it’s a set of chromed headers or simply a set of cleaned up flat black rams horn manifolds,...
      # 12368080
    • (0 reviews)
      $4.13from $3.30 - $10.07
      Pontiac Firebird 1978, Exhaust Seal Ring by Victor Reinz®, Use 1 per Car. OEM Standard. When you’re low on oil, coolant or some other fluid, you may be tempted to just run down to the local auto parts chain store. But before you...
      # 24197974
    • (0 reviews)
      $37.86from $30.29 - $31.30
      Pontiac Firebird 1978, Header Install Kit by Mr. Gasket®, Includes Header Exhaust/Collector Flange Gasket/Header and Collector Flange Bolts. Whatever exhaust system you install on your engine, whether it’s a set of chromed...
      # 12330723
    • (0 reviews)
      $44.19$35.35
      Pontiac Firebird 5.0L / 5.7L 1978, Stainless Steel Exhaust Header Bolt Set by Mr. Gasket®, 12 Piece. 3/8-16 x 0.75". Whatever exhaust system you install on your engine, whether it’s a set of chromed headers or simply a set of...
      # 12304595
    • (0 reviews)
      $11.88from $9.50 - $11.31
      Pontiac Firebird 1978, Exhaust Manifold Gasket Set by Fel-Pro®. If you need durable gaskets to prevent leaks on your vehicle, Fel-Pro is the way to go. Engineered using the latest technologies and global engineering resources, the...
      Direct OEM replacement for a proper fitEnsure reliable sealing performance
      # 19062687
    • (0 reviews)
      $222.64$178.11
      Pontiac Firebird 3.8L / 5.0L / 5.7L 1978, Universal Fit Center Catalytic Converter by Eastern®. Inlet/Outlet: 2.5"/2.5". Whether your catalytic converter is damaged by road debris or failed due to an engine problem, you definitely...
      Universal fitConverts harmful engine emissions to less dangerous gases and water vapor
      # 38837668
    • (0 reviews)
      $25.13from $20.10 - $22.37
      Pontiac Firebird V8 1978, Graph-Flex™ Exhaust Header Gaskets by Taylor Cable®. These durable header flange gaskets are composed of a graphite composition material on a malleable stainless steel core. They’ll seal up tight on...
      # 9381626
    • (0 reviews)
      $94.53from $75.62 - $146.90
      Universal 10 Series Delta Force Single Chamber Race Muffler by Flowmaster®, AGGRESSIVE SOUND. The 10 Series Race mufflers are a compact lightweight single chamber design that will give a noticeable sound reduction compared to open...
      # 898490
    • (0 reviews)
      $209.88from $167.90 - $267.60
      Universal 30 Series Delta Force™ 3-Chamber Race Muffler by Flowmaster®, AGGRESSIVE SOUND. These are the most powerful and the quietest professional race mufflers available. 5.00” & 6.00” thick case sizes for maximum power and...
      # 898450
    • (0 reviews)
      $132.48from $105.98 - $230.86
      Universal 40 Series Delta Force™ 2-Chamber Race Muffler by Flowmaster®, AGGRESSIVE SOUND. The 40-Series mufflers offer a combination of maximum power and substantial dB-reduction compared to open headers. They are recommended for...
      # 898479
    • (0 reviews)
      $246.58$197.26
      Universal 60 Series Delta Force Stainless Steel Race Muffler by Flowmaster®, MODERATE SOUND, 4" Offset Inlet / 4" Offset Outlet, 22" Length. These are the most powerful and the quietest professional race mufflers available.
      # 3146020
    • (0 reviews)
      $390.89$312.71
      Universal Delta Force™ Aluminized Steel Low Profile Oval Tubing Race Muffler by Flowmaster®, Aggressive Sound, 3.50" Dual Inlet / 3.50" Dual Outlet, 2.75 Thick x 11" Wide x 25" Length. The low profile mufflers are Delta Flow™...
      # 898448
    • (1 reviews)
      $111.25from $89.00 - $141.66
      Universal Outlaw™ Race Muffler by Flowmaster®, AGGRESSIVE SOUND. These mufflers are very small and lightweight. Attached directly to the collector they generally produce more power than open headers, while taking “the edge”...
      # 898456
    • (1 reviews)
      $236.09$188.87
      Universal Pro Series™ Stainless Steel Race Muffler with Turn Down by Flowmaster®, MODERATE SOUND, 6" Diameter x 16" Case Length. Laminar Flow Mufflers have applications in all forms of racing. The Cool Shell Technology makes...
      # 898465
    • (0 reviews)
      $234.83from $187.86 - $208.84
      Universal Scavenger Series Outlaw II Race Collector Muffler by Flowmaster®. These Delta Force Mufflers are designed to attach directly to the exhaust header primary tubes, replacing the collector in sprint and drag racing...
      # 23297627
    • (0 reviews)
      $274.15$219.32
      Universal Scavenger Series Race Collector Muffler by Flowmaster®. These Delta Force Mufflers are designed to attach directly to the exhaust header primary tubes, replacing the collector in sprint and drag racing applications. They...
      # 898468
    • (1 reviews)
      $112.49from $89.99 - $108.08
      Universal 40 Series Delta Flow™ Muffler by Flowmaster®, AGGRESSIVE SOUND, 4" Thick x 9.75" Wide x 13" Case Length x 19" Overall Length. The 2-chamber design of this muffler, incorporating the patented Flowmaster Delta Flow...
      # 897054
    • (0 reviews)
      $108.85$87.08
      Universal 40 Series Original Muffler by Flowmaster®, AGGRESSIVE SOUND, 4" Thick x 9.75" Wide x 13" Case Length x 19" Overall Length. This is the muffler that launched the success of Flowmaster. It is an aggressive sounding...
      # 897079
    • (0 reviews)
      $133.78from $107.02 - $125.92
      Universal 50 Series Delta Flow™ Muffler by Flowmaster®, MODERATE SOUND, 4" Thick x 9.75" Wide x 17" Case Length x 23" Overall Length. The 50 Series Delta Flow mufflers are designed for passenger cars. The sound characteristics...
      # 897086
    • (0 reviews)
      $174.45$139.56
      Universal 50 Series Delta Flow™ Slimline Muffler by Flowmaster®, MODERATE SOUND. The 50 Series Delta Flow Slimline mufflers are designed for passenger cars. The sound characteristics are moderate exterior sound level and minimal...
      # 897156



    Guides & Articles
    Regardless of whether you're shopping for a simple replacement muffler that delivers original equipment (OE) sound and performance or an upgraded muffler which provides a deeper growl with increased power through freer exhaust flow, you'll see choices between "direct fit" mufflers and "universal" mufflers. In this article, we'll help you understand the differences...
    It has been a battle of the ages to make exhaust sound like it should. Having less bends or turns will not only improve the sound but also performance. A custom exhaust is always an option for the race inspired and spirited weekend warriors. Our manufactures offer everything needed to build a custom exhaust to your preference.
    Headers are installed because the stock exhaust manifolds usually flow poorly. An exhaust header has individual tubes for each exhaust port, allowing each exhaust pulse to flow unobstructed from the cylinder head. The tubes on headers are usually larger in diameter than the runners on an exhaust manifold and the tubes are mandrel bent for gradual radius bends.
    Popular Popular Products
    1978 Pontiac Firebird Models
    • 1978 Pontiac Firebird Base Performance Exhaust Systems
    • 1978 Pontiac Firebird Esprit Performance Exhaust Systems
    • 1978 Pontiac Firebird Formula Performance Exhaust Systems