2003 Buick Regal Performance Exhaust Systems

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    • (0 reviews)
      # mpn1113471
      Buick Regal With LEV1 Specification / With ULEV Specification 2003, OBDII Catalytic Converter by MagnaFlow®. Emissions: CARB compliant. Converter Configuration: Direct Fit. With Gaskets. Without Air Tube. With Post-Cat O2 Sensor...
      Increases exhaust flow compared to original factory converterIncreased exhaust flow allows your engine to make more power
      $659.73
    • (0 reviews)
      # mpn358734629
      Buick Regal 2003, PowerFlo™ Stainless Steel Axle-Back Exhaust System by SLP®. Exhaust Type: Axle-Back. Exhaust Tubing Material: Stainless Steel. Give your car a powerful deep sound with a PowerFlo® Exhaust System from SLP...
      PowerFlo mufflers offer minimal flow restriction and a deep, rich performance soundLighter than the OEM muffler assembly
      $527.95
    • (0 reviews)
      # mpn2765260541
      Buick Regal 2003, Standard Grade Catalytic Converter by Flowmaster®. Emissions: EPA compliant. Converter Configuration: Direct Fit. With O2 Sensor Port. Catalytic Converter Overall Length: 37.38". Flowmaster's Standard Grade line...
      Made of High Quality Stainless SteelImprove Torque and Throttle Response
      $337.03
    • (0 reviews)
      # mpn1118907
      Buick Regal 2003, Heavy Metal Catalytic Converter by MagnaFlow®. Emissions: EPA compliant. Converter Configuration: Direct Fit. With Gasket. Without Air Tube. With Pre and Post-Cat O2 Sensor Ports. Catalytic Inlet Diameter: 2.5"....
      Converter body manufactured from heavy-duty stainless steelIncreases exhaust flow compared to original factory converter
      $215.85
    • (0 reviews)
      # mpn1038339
      Buick Regal 2003, Heavy Metal Catalytic Converter by MagnaFlow®. Emissions: EPA compliant. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Round. Without Air Tube. With Post-Cat O2 Sensor Port. Catalytic...
      Reduces harmful emissionsIncreases exhaust flow compared to original factory converter
      $108.09
    • (0 reviews)
      # mpn1078176
      Buick Regal With LEV1 Specification / With ULEV Specification 2003, OBDII Catalytic Converter by MagnaFlow®. Emissions: CARB compliant. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Round. Without Air...
      Reduces harmful emissionsIncreases exhaust flow compared to original factory converter
      $347.74
    • (0 reviews)
      # mpn1125936
      Buick Regal 2003, OEM Grade Catalytic Converter by MagnaFlow®. Emissions: EPA compliant. Converter Configuration: Direct Fit. With Gaskets. Catalytic Converter Overall Length: 37". Includes: Gasket (2). If your car needs...
      Reduces harmful emissionsIncreases exhaust flow compared to original factory converter
      $311.35
    • (0 reviews)
      # mpn1038307
      Buick Regal 2003, OEM Grade Catalytic Converter by MagnaFlow®. Emissions: EPA compliant. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Round. Without Air Tube. With Post-Cat O2 Sensor Port. Catalytic Inlet...
      Reduces harmful emissionsIncreases exhaust flow compared to original factory converter
      $144.84
    • (0 reviews)
      # mpn2112185
      Buick Regal 2003, Graph-Flex™ Stock Ports 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...
      Malleable stainless steel metal coreWill survive 2000°F exhaust temperatures for extended periods
      $23.50
    • (0 reviews)
      # mpn1593909569
      Buick Regal 2003, HTR Rectangle Collector Gaskets by Taylor Cable®. This products is an OEM and Performance company that was built on its founding heritage supported by a tradition of Legendary Quality. Designed utilizing the...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $18.40
    • (0 reviews)
      # mpn2114182
      Buick Regal 2003, Seal-4-Good™ Stock Ports 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...
      Multi-layered for excellent conformability and sealSeals even imperfect flanges
      $34.41
    • (0 reviews)
      # mpn2117367
      Buick Regal 2003, XX Carbon™ Stock Ports 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,...
      Malleable stainless steel metal coreWill survive 2000°F exhaust temperatures for extended periods
      $21.34
    • (0 reviews)
      # 231040115
      Buick Regal 2003, Vibe-Lock Header Bolt Kit by Taylor Cable®. This products is an OEM and Performance company that was built on its founding heritage supported by a tradition of Legendary Quality. Designed utilizing the latest...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $60.20 - $116.60
    • (0 reviews)
      # 115257614
      Buick Regal 2003, Replacement Exhaust Kit by Walker®. If you are looking for the ultimate in quality and value, then this superior replacement exhaust kit by Walker is what you need. All its components are designed with precision...
      Direct fit replacementIncludes all applicable flanges, hangers, and sensor fittings
      $59.85 - $292.13
    • (0 reviews)
      # 165412508
      Buick Regal 2003, Replacement Exhaust Kit by AP Exhaust®. Get confidence with this high-standard OE quality purchase which is perfect for those who want to perform a long-lasting exhaust system repair. Made from top-notch...
      Superior replacement for your worn out exhaust partHelps put your vehicle back to its tip-top shape
      $46.43 - $218.19
    • (0 reviews)
      # 231040103
      Buick Regal 2003, Natural Exhaust Manifold by Dorman®. Finish: Natural. Since this part is a direct replacement, the exact fit adds another layer of efficiency and convenience.
      High Quality tubular construction protects against warping and/or crackingLeak-resistant for long-lasting performance
      $49.95 - $112.95
    • (0 reviews)
      # mpn1833637
      Buick Regal Engine Family Number 3GMXV03.8044 2003, CalCat™ Catalytic Converter by Walker®. Emissions: CARB compliant. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Round. With 1 Inlet. Without Air Tube....
      Constructed to meet your vehicle’s specific emissions requirementsFeatures stainless steel body with aluminized steel pipe and heat shields
      $144.00
    • (0 reviews)
      # mpn1842581
      Buick Regal 2003, EX Ultra™ Catalytic Converter by Walker®. Emissions: EPA compliant. Converter Configuration: Direct Fit. Catalytic Converter Body Shape: Round. With 1 Inlet. With O2 Sensor Port. Catalytic Converter Overall...
      Constructed to meet your vehicle’s specific emissions requirementsBody and pipe heat shields made of high quality materials for durability
      $292.13
    • (0 reviews)
      # 124059083
      Buick Regal 2003, Ultra™ Catalytic Converter by Walker®. Emissions: EPA compliant. Converter Configuration: Direct Fit. Catalytic Converter Body Shape: Round. With 1 Inlet. With O2 Sensor Port. Catalytic Converter Overall Length:...
      Constructed to meet your vehicle’s specific emissions requirementsBody and pipe heat shields made of high quality materials for durability
      $185.23
    • (0 reviews)
      # mpn1818158
      Buick Regal 2003, Ultra™ Catalytic Converter by Walker®. Emissions: EPA compliant. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Round. With 1 Inlet. Without Air Tube. Without O2 Sensor Port. Catalytic...
      Constructed to meet your vehicle’s specific emissions requirementsFeatures stainless steel body with aluminized steel pipe and heat shields
      $74.34
    • (0 reviews)
      # mpn971253
      Buick Regal With Federal Emission 2003, Catalytic Converter by Bosal®. Emissions: EPA compliant. Converter Configuration: Direct Fit. With O2 Sensor Port. If you’re in need of a replacement catalytic converter, you can’t do...
      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
      $194.74
    • (0 reviews)
      # mpn1569129191
      Buick Regal With Federal Emission 2003, Premium Load Catalytic Converter by Bosal®. Emissions: EPA compliant. Converter Configuration: Universal Fit. Position: Rear. With Rear O2 Sensor Port. Catalytic Converter Overall Length:...
      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
      $110.65
    • (0 reviews)
      # 286183916
      Buick Regal 2003, ECO GM Catalytic Converter by Eastern®. Emissions: EPA compliant. Converter Configuration: Direct Fit. Position: Undercar. If you need to replace your failed or damaged catalytic converter, this product is the...
      Direct OEM replacementConverts harmful engine emissions to less dangerous gases and water vapor
      $179.15 - $198.23
    • (0 reviews)
      # 111781024
      Buick Regal 2003, ECO GM Catalytic Converter by Eastern®. Emissions: EPA compliant. Converter Configuration: Universal Fit. Position: Undercar. Catalytic Converter Body Shape: Large Oval. Without O2 Sensor Ports. Catalytic...
      Universal fitConverts harmful engine emissions to less dangerous gases and water vapor
      $87.84 - $88.93
    • (0 reviews)
      # 140268576
      Buick Regal 2003, Catalytic Converter by DEC®. Converter Configuration: Direct Fit. Pick out a catalytic converter by DEC and get your emissions back into check without worrying to fail again. These catalytic converters are made...
      Direct fitMade from a heavy duty stainless steel outer shell
      $311.30 - $526.93
    • (0 reviews)
      # 165412502
      Buick Regal 2003, 608 Series Catalytic Converter by AP Exhaust®. Emissions: EPA compliant. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Round. Without Air Tube. Catalytic Inlet Diameter: 2.5". Catalytic...
      A multitude of Universal converter bodies provided for maximum coverageProvides professional installer with immediate installation options
      $74.51 - $86.28
    • (0 reviews)
      # mpn474118868
      Buick Regal 2003, Catalytic Converter by AP Exhaust®. Emissions: EPA compliant. Converter Configuration: Direct Fit. Without Air Tube. With 1 O2 Sensor Port. Catalytic Converter Overall Length: 37.38". The growing concern for the...
      5-year/50,000-mile warranty on converter body25,000-mile warranty on emissions
      $218.19
    • (0 reviews)
      # mpn2231257586
      Buick Regal 2003, Catalytic Converter by PaceSetter®. Emissions: EPA compliant. Converter Configuration: Direct Fit. Position: Rear Undercar. If you want to get the most out of your vehicle, this PaceSetter product is second to...
      Direct-Fit Catalytic Converters are a direct replacement for original equipmentManufactured using mandrel-bent 16-gauge and stainless steel tubing
      $149.96
    • (0 reviews)
      # mpn1893881
      Buick Regal 2003, Quiet-Flow™ Stainless Steel Oval Aluminized Exhaust Muffler by Walker®. Muffler Inlet Diameter: 2". Muffler Outlet Diameter: 2.25". Muffler Body Length: 15". Muffler Overall Length: 28.4375". Muffler...
      Designed for OE equivalent sound and precision fitSpun-locked heads for a proper resistance to backfire
      $77.33
    • (0 reviews)
      # mpn1880522
      Buick Regal 2003, SoundFX™ Aluminized Steel Oval Direct-Fit Exhaust Muffler by Walker®. Optional. Muffler Inlet Diameter: 2". Muffler Outlet Diameter: 2.25". Muffler Body Length: 15". Muffler Overall Length: 28". Muffler...
      Designed to deliver ultimate performance and pleasing sound qualityOE-equivalent direct-fit design
      $61.38
    • (0 reviews)
      # mpn1877162
      Buick Regal 2003, Stainless Steel Round Aluminized Resonator Assembly by Walker®. Muffler Inlet Diameter: 2.25". Muffler Outlet Diameter: 2". Muffler Body Length: 30". Muffler Overall Length: 33". If you want exhaust piping that...
      Designed to directly replace the factory partMade with precision benders and fixture checked
      $62.63
    • (0 reviews)
      # mpn2283870
      Buick Regal 2003, Stainless Steel Natural Exhaust Manifold Crossover Pipe by Dorman®. Material: Stainless Steel. Includes: Pipe, Hardware and Gaskets. More like a complete kit than a single part, Dorman's Exhaust Crossover Pipe...
      Comes with two flange bolts and one flange gasket per side for ease of installationRust-resistant for long-lasting performance
      $225.95
    • (0 reviews)
      # mpn1870024
      Buick Regal 2003, Aluminized Steel Intermediate Pipe by Walker®. Material: Aluminized Steel. With their extensive selection of accessories and hardware for the exhaust system, Walker will provide you with everything needed to do...
      Made of High Quality Aluminized SteelCorrosion Resistant
      $27.54
    • (1 review)
      # 73539193
      Buick Regal 2003, GM Original Equipment™ Oxygen Sensor by ACDelco®. If your O2 sensor is not functioning properly, you are robbing yourself of performance and costing yourself money at the gas pump. Let ACDelco’s GM OE Oxygen...
      ACDelco GM OE Oxygen Sensors earn the name ACDelco by being put through a variety of tests, often under extreme and unusual conditions.Detects oxygen content in the exhaust gases.
      $37.52 - $41.46
    • (0 reviews)
      # 485454120
      Buick Regal 2003, Professional™ Oxygen Sensor by ACDelco®. If your O2 Sensor is not functioning properly, you are robbing yourself of performance and costing yourself money at the gas pump. Let ACDelco’s Professional Oxygen...
      ACDelco Professional Oxygen Sensors earn the name ACDelco by being put through a variety of tests, often under extreme and unusual conditions.Customers can receive better gas mileage with a properly working oxygen sensor.
      $45.78 - $58.84
    • (0 reviews)
      # 81758427
      Buick Regal 2003, Oxygen Sensor by Delphi®. As one of the leading suppliers of oxygen sensor technology since 1978, Delphi planar technology is the result of their OE and aftermarket engineers partnering together to develop the...
      OE connectors and wire lengths within three inches of OE specificationsResists high temperatures, vibration damage and wire corrosion to protect signal accuracy, and long life
      $33.63 - $39.74
    • (0 reviews)
      # 44891416
      Buick Regal 2003, Oxygen Sensor by Standard®. SMP’s vision is to be the leading independent supplier to the automotive aftermarket, providing the highest quality products, competitive prices and the highest reputation for...
      OE quality parts from top original equipment and aftermarket manufacturersThe finest quality at a great price
      $44.91 - $54.22
    • (0 reviews)
      # 405186698
      Buick Regal 2003, Universal Fit Oxygen Sensor by Bosch®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your needs...
      High quality at an affordable priceExpertly made from premium materials
      $38.77
    • (0 reviews)
      # 21075759
      Buick Regal 2003, Oxygen Sensor by Denso®. Denso's light duty oxygen sensor started to appear on vehicles with the development of fuel injection systems. The basic job of the sensor is to monitor the air fuel mixture under idle,...
      Corrosion-resistant stainless steel constructionPTFE filter blocks efficiency-robbing contaminants
      $26.09 - $37.54
    • (0 reviews)
      # 22133624
      Buick Regal 2003, Oxygen Sensor by NTK®. Thimble Type Sensors Feature a Ceramic Element that Projects into the Exhaust System and Becomes Electrically Conductive at High Temperature. The Sensor Element then Sends Voltage Signals...
      Increases vehicle fuel economy and engine performance while decreasing vehicle exhaust emissionsDirect replacement
      $34.52 - $40.99
    • (0 reviews)
      # mpn770181280
      Buick Regal 2003, Rubber Black Exhaust Hanger by Dorman®. Material: Rubber. Includes: 1 Exhaust Hanger. Dorman’s Exhaust Hanger installs easily to mount the exhaust to the vehicle. The Hanger is constructed from high-quality,...
      Direct replacement for a proper fitReplacement restores the exhaust to proper operation
      $9.87
    • (1 review)
      # mpn1572681
      Buick Regal 2003, Heavy Duty Steel Natural U-Bolt Clamp by Walker®. Material: Steel. 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
      $1.22
    • (0 reviews)
      # 95030274
      Buick Regal 2003, Exhaust Flange Gasket by Bosal®. Bosal has a vast selection of all necessary accessories and hardware to help you make the exhaust system installation or repair job quickly and easily. Choose Bosal, and you'll get...
      Constructed for a hassle-free exhaust repairEnsures a precise fit
      $4.89 - $5.47
    • (0 reviews)
      # mpn597853
      Buick Regal 2003, Multi-Layer Steel Exhaust Manifold Gasket Set by Victor Reinz®. Material: Multi-Layer Steel. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art...
      High quality at an affordable priceExpertly made from premium materials
      $10.98
    • (0 reviews)
      # mpn616585
      Buick Regal 2003, Sintered Metal Exhaust Seal Ring by Victor Reinz®. Material: Sintered Metal. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with...
      High quality at an affordable priceExpertly made from premium materials
      $6.10
    • (0 reviews)
      # 231040153
      Buick Regal 2003, Exhaust Manifold Gasket Set by DNJ Engine Components®. Get this top-grade quality replacement for your worn out part from DNJ. Expertly crafted from premium materials, this product is of the finest quality to...
      Designed to restore your vehicle's original performanceProvides superior sealing performance
      $4.89 - $8.62
    • (0 reviews)
      # 18135946
      Buick Regal 2003, 2-Bolt Exhaust Gasket 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...
      Makes installation quick and easyOptimal OE-style fit and quality
      $4.86 - $8.21
    • (0 reviews)
      # 19064572
      Buick Regal 2003, 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 fitEnsures reliable sealing performance
      $5.22 - $5.42
    • (0 reviews)
      # mpn611134
      Buick Regal 2003, Steel Exhaust Pipe Flange Gasket by Victor Reinz®. Material: Steel. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in...
      High quality at an affordable priceExpertly made from premium materials
      $4.95
    • (0 reviews)
      # mpn2386333
      Buick Regal 2003, Metal Exhaust Flange Stud and Nut Kit by Dorman®. Material: Metal. Includes: 2 Studs (M10-1.5 X62Mm) and 2 (M10-1.5) Nuts. Dorman’s Exhaust Flange Stud & Nut provides you with the proper flange stud and nut for...
      Direct replacement for a proper fit every timeDurable steel construction
      $6.59
    • (0 reviews)
      # 73539196
      Buick Regal 2003, GM Original Equipment™ Oxygen Sensor Connector by ACDelco®. If your O2 Sensor is not functioning properly, you are robbing yourself of performance and costing yourself money at the gas pump. Let ACDelco’s...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $29.48 - $33.79
    • (0 reviews)
      # mpn2441510
      Buick Regal 2003, TECHoice Oxygen Sensor Connector by Dorman®. Dorman offers a comprehensive line of Oxygen Sensor Connectors for a wide range of applications. All Dorman Oxygen Sensor Connectors are constructed of high-quality...
      No special tools required for installationEasy to install
      $28.93
    • (0 reviews)
      # 441827601
      Buick Regal 2003, Oxygen Sensor Connector by Standard®. Includes: Pigtail Assembly. SMP’s vision is to be the leading independent supplier to the automotive aftermarket, providing the highest quality products, competitive prices...
      OE quality parts from top original equipment and aftermarket manufacturersThe finest quality at a great price
      $25.55 - $31.54
    • (1 review)
      # 285612371
      Universal 304 SS Chambered Round Mill Exhaust Muffler by Stainless Works®. Muffler Body Length: 30". Muffler Sound: Aggressive / Loud. Muffler Configuration: Center - Center. Stainless Works is the only manufacturer to build all of...
      Designed to meet strict quality standardsCarefully crafted from first-rate stainless steel
      $166.25
    • (1 review)
      # 285612429
      Universal 304 SS Rat Trap Mill Exhaust Muffler by Stainless Works®. Muffler Body Length: 24". Muffler Sound: Aggressive / Loud. Muffler Configuration: Center - Center. Stainless Works is the only manufacturer to build all of our...
      Designed to meet strict quality standardsCarefully crafted from first-rate stainless steel
      $147.25
    • (1 review)
      # 360335633
      Universal 304 SS Round Mill Exhaust Muffler by Stainless Works®. Muffler Overall Length: 5". Muffler Configuration: Center - Center. Stainless Works is the only manufacturer to build all of our mufflers with ALL s/s...
      Designed to meet strict quality standardsCarefully crafted from first-rate stainless steel
      $118.75 - $157.70
    • (1 review)
      # 285612569
      Universal 304 SS Round Vintage Mill Exhaust Muffler by Stainless Works®. Muffler Sound: Aggressive / Loud. Stainless Works is the only manufacturer to build all of our mufflers with ALL s/s construction-the bodies, cores, and...
      Designed to meet strict quality standardsCarefully crafted from first-rate stainless steel
      $147.25
    • (1 review)
      # 285612455
      Universal 304 SS Smooth Tube Mill Exhaust Muffler by Stainless Works®. Muffler Body Length: 24". Muffler Sound: Moderate. Muffler Configuration: Center - Center. Stainless Works is the only manufacturer to build all of our mufflers...
      Designed to meet strict quality standardsCarefully crafted from first-rate stainless steel
      $152.00
    • (1 review)
      # 285612487
      Universal 304 SS Turbo Chambered Exhaust Muffler by Stainless Works®. Muffler Body Length: 14". Muffler Overall Length: 18". Muffler Sound: Aggressive / Loud. Stainless Works is the only manufacturer to build all of our mufflers...
      Designed to meet strict quality standardsCarefully crafted from first-rate stainless steel
      $175.75
    • (1 review)
      # 285612526
      Universal 304 SS Turbo S-Tube Exhaust Muffler by Stainless Works®. Muffler Body Length: 14". Muffler Overall Length: 18". Muffler Sound: Aggressive / Loud. Muffler Structure: Turbo. Stainless Works is the only manufacturer to build...
      Designed to meet strict quality standardsCarefully crafted from first-rate stainless steel
      $175.75




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    Popular Products



    2003 Buick Regal Performance Exhaust Systems Reviews

    Average rating:  5  5 - 1 review
    4.8 of 5
    Improve The Look And Sound
    This JBA exhaust tip totally improved the look and sound of my car. It was just what i need and the look as described. Recommend it to anyone.
    TPosted by Tormod M (Olpe, KS) / November 21, 2016
    2011 Ford F-150
    Was this review helpful for you? Yes

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