2003 Isuzu Ascender Performance Exhaust Systems

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    • (0 reviews)
      # mpn4351213861
      Isuzu Ascender 5.3L 2003, Exhaust Headers by Advance Adapters®. Emissions: EPA compliant. 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
      $263.82
    • (0 reviews)
      # 378669891
      Isuzu Ascender 5.3L 2003, Roadster Exhaust Headers by Patriot Exhaust®. Primary Tubing Diameter: 1.625". Collector Outlet Diameter: 3.5". This superior Patriot EXhaust product is just for you. Carefully designed for maximum performance,...
      $266.11 - $556.88
    • (0 reviews)
      # 378669887
      Isuzu Ascender 5.3L 2003, Street Rod Sprint Exhaust Headers by Patriot Exhaust®. Primary Tubing Diameter: 1.625". Collector Outlet Diameter: 3.5". Emissions: EPA compliant. This superior Patriot EXhaust product is just for you....
      $254.08 - $512.24
    • (0 reviews)
      # 317031933
      Isuzu Ascender 2003, Heavy Metal Catalytic Converter by MagnaFlow®. Emissions: EPA compliant. Converter Configuration: Direct Fit. If your car needs replacement, install one that will get you through the smog check. This converter will...
      $229.99 - $583.70
    • (0 reviews)
      # 317031942
      Isuzu Ascender with LEV Standard / with LEV1 Standard 2003, OBDII Catalytic Converter by MagnaFlow®. Emissions: CARB compliant. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Oval. Without Air Tube. Without O2...
      $201.48
    • (0 reviews)
      # 317031929
      Isuzu Ascender 2003, OEM Grade Catalytic Converter by MagnaFlow®. Emissions: EPA compliant. Converter Configuration: Direct Fit. If your car needs replacement, install one that will get you through the smog check. This converter is part...
      $308.44 - $728.80
    • (0 reviews)
      # mpn358582413
      Isuzu Ascender 5.3L 2003, Aluminum Header Flange Kit by Moroso®. Material: Aluminum. With this quality part backed by a great price, you can enjoy your vehicle so much more than you thought was possible. This Moroso part is specifically...
      High quality at an affordable priceExpertly made from premium materials
      $115.02
    • (0 reviews)
      # mpn358507470
      Isuzu Ascender 5.3L 2003, Multi-Layer Steel Exhaust Header Gasket by Cometic Gasket®. Material: Multi-Layer Steel. Exhaust Gaskets are designed for extreme cylinder pressures. MLS Exhaust Manifold Gaskets maintain a torque set and...
      Made of High Quality MaterialsBuilt to Last
      $31.61
    • (2 reviews)
      # 114818163
      Isuzu Ascender 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...
      Mufflers and Resonators Designed for OE equivalent sound and precision fitOE-style louvered tube technology for a premium, factory-like sound
      $70.24 - $281.30
    • (1 review)
      # 165482047
      Isuzu Ascender 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 materials,...
      Superior replacement for your worn out exhaust partHelps put your vehicle back to its tip-top shape
      $31.17 - $288.10
    • (0 reviews)
      # 841888828
      Isuzu Ascender 2003, Cast Iron Natural Exhaust Manifold by Dorman®. Emissions: CARB compliant. Finish: Natural. Color: Natural. Header Coating: Uncoated. This product is made of high-quality materials to serve you for years to come....
      High Quality tubular construction protects against warping and/or crackingLeak-resistant for long-lasting performance
      $118.95 - $119.95
    • (0 reviews)
      # mpn2095012639
      Isuzu Ascender 4.2L 2003, Cast Iron Natural Exhaust Manifold by ATP®. Emissions: EPA compliant. Finish: Natural. Color: Natural. Header Coating: Uncoated. ATP Graywerks Exhaust Manifolds are a high quality OE replacement alternative....
      Manufactured to OE design ensuring manifold will line up and flow like the original unitHigh grade metallurgy resists fatigue cracking and breakage
      $110.99
    • (0 reviews)
      # 1013746081
      Isuzu Ascender 4.2L Engine Family # 3GMXA04.2187 2003, CalCat™ Catalytic Converter and Pipe Assembly by Walker®. Emissions: CARB compliant. Converter Configuration: Direct Fit. Catalytic Converter Body Shape: Large Oval. With 1 Inlet....
      Constructed to meet your vehicle’s specific emissions requirementsBody and pipe heat shields made of high quality materials for durability
      $281.30
    • (0 reviews)
      # 1016081078
      Isuzu Ascender 4.2L Engine Family # 3GMXA04.2187 2003, CalCat™ Catalytic Converter and Pipe Assembly by Walker®. Emissions: CARB compliant. Converter Configuration: Direct Fit. Catalytic Converter Body Shape: Large Oval. With 1 Inlet....
      Constructed to meet your vehicle’s specific emissions requirementsBody and pipe heat shields made of high quality materials for durability
      $281.30
    • (0 reviews)
      # 286255621
      Isuzu Ascender 2003, CalCat™ Catalytic Converter by Walker®. Emissions: CARB compliant. Converter Configuration: Universal Fit. Without Air Tube. Without O2 Sensor Port. Specifically designed to comply with the California Air...
      Constructed to meet your vehicle’s specific emissions requirementsFeatures stainless steel body with aluminized steel pipe and heat shields
      $131.31 - $152.21
    • (0 reviews)
      # mpn1040153
      Isuzu Ascender 4.2L with Short Wheelbase with Federal Emission 2003, Catalytic Converter and Pipe Assembly by Bosal®. Emissions: EPA compliant. Converter Configuration: Direct Fit. With O2 Sensor Ports. If you’re in need of a...
      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
      $215.74
    • (0 reviews)
      # 100290117
      Isuzu Ascender 2003, ECO CARB Catalytic Converter by Eastern®. Emissions: CARB compliant. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Large Oval. Catalytic Converter Overall Length: 16". Whether your...
      Converts harmful engine emissions to less dangerous gases and water vaporAdvanced design for maximum engine output
      $128.93 - $141.09
    • (1 review)
      # 80141567
      Isuzu Ascender 2003, Catalytic Converter and Pipe Assembly by AP Exhaust®. Converter Configuration: Direct Fit. The growing concern for the environment means there is a growing need for quality emission control products. AP catalysts...
      5-year/50,000-mile warranty on converter body25,000-mile warranty on emissions
      $227.21 - $288.10
    • (0 reviews)
      # mpn4498747199
      Isuzu Ascender 4.2L with MDV2 Weight Class with California Emission with LEV1 Standard Test Group Name # 3GMXA04.2187 2003, Catalytic Converter by Davico®. Emissions: CARB compliant. Converter Configuration: Universal Fit. Position:...
      $157.30
    • (0 reviews)
      # mpn1870981
      Isuzu Ascender 4.2L with Extension Wheelbase 2003, Quiet-Flow™ Stainless Steel Oval Aluminized Exhaust Muffler by Walker®. Muffler Inlet Diameter: 2.5". Muffler Outlet Diameter: 2.5". Muffler Body Length: 27". Muffler Overall Length:...
      Designed for OE equivalent sound and precision fitSpun-locked heads for a proper resistance to backfire
      $103.08
    • (0 reviews)
      # mpn1878755
      Isuzu Ascender 4.2L with Extension Wheelbase 2003, SoundFX™ Aluminized Steel Oval Direct-Fit Exhaust Muffler by Walker®. Optional. Muffler Outlet Diameter: 2.5". Muffler Body Length: 27". Muffler Overall Length: 44.375". Muffler...
      Designed to deliver ultimate performance and pleasing sound qualityOE-equivalent direct-fit design
      $70.24
    • (2 reviews)
      # mpn1875091
      Isuzu Ascender 4.2L 2003, Stainless Steel Oval Bare Resonator Assembly by Walker®. Muffler Inlet Diameter: 2.5". Muffler Outlet Diameter: 2.5". Muffler Body Length: 13". Muffler Overall Length: 58.875". Muffler Configuration: Offset -...
      Designed to directly replace the factory partMade with precision benders and fixture checked
      $94.25
    • (0 reviews)
      # mpn500329176
      Isuzu Ascender 4.2L with Extended Wheelbase 2003, Aluminized Steel Exhaust Intermediate Pipe by Walker®. Material: Aluminized Steel. Main Piping Diameter: 2.75". With their extensive selection of accessories and hardware for the exhaust...
      Made of high quality aluminized steelCorrosion resistant
      $26.56
    • (0 reviews)
      # 73597730
      Isuzu Ascender 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.
      $34.13 - $48.98
    • (0 reviews)
      # 73597738
      Isuzu Ascender 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 conditionsCustomers can receive better gas mileage with a properly working oxygen sensor
      $43.75 - $78.62
    • (0 reviews)
      # 81770609
      Isuzu Ascender 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 most...
      OE connectors and wire lengths within 3" of OE specificationsResists high temperatures, vibration damage and wire corrosion to protect signal accuracy, and long life
      $36.11 - $43.53
    • (0 reviews)
      # 44944585
      Isuzu Ascender 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 integrity...
      One-piece laser welded body for maximum protection and precise operation maintaining sensor integrityDual internal talc seal makes Our Oxygen sensors last longer
      $49.42 - $53.58
    • (0 reviews)
      # 24162914
      Isuzu Ascender 2003, Premium Oxygen Sensor by Bosch®. A worn-out oxygen sensor can cause engine performance problems and shorten the life of the catalytic converter. Tune-up your vehicle with an Oxygen Sensor from Bosch that is equally...
      Up to 15 % savings in fuel costsReduced CO2 emissions
      $29.17 - $46.79
    • (0 reviews)
      # 24162929
      Isuzu Ascender 2003, Universal Fit Oxygen Sensor by Bosch®. Universal Oxygen Sensors with OE SmartLink are quick and easy to install. Each sensor has enough length of sensor wire to allow maximum replacement of worn harnesses. Properly...
      Patented SmartLink™ connector systemNo special tools required for installation
      $37.85 - $39.85
    • (0 reviews)
      # 21091969
      Isuzu Ascender 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
      $30.26 - $33.71
    • (0 reviews)
      # 710331100
      Isuzu Ascender 2003, Universal Fit 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...
      Corrosion-resistant stainless steel constructionPTFE filter blocks efficiency-robbing contaminants
      $31.49
    • (0 reviews)
      # 22140102
      Isuzu Ascender 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 back...
      Increases vehicle fuel economy and engine performance while decreasing vehicle exhaust emissionsDirect replacement
      $29.93 - $37.23
    • (0 reviews)
      # 22843242
      Isuzu Ascender 2003, Oxygen Sensor by Spectra Premium®. To ensure your vehicle has optimal performance and fuel economy while producing minimal emissions replace a defective O2 sensor with one backed by the aftermarket’s most rigorous...
      Increase vehicle fuel economy and engine performance while decreasing vehicle exhaust emissions100% performance tested to meet vehicle requirements
      $19.56 - $70.81
    • (0 reviews)
      # 906643753
      Isuzu Ascender Base / Limited / LS 2003, Oxygen Sensor by PSI®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship....
      Designed for ultra high efficiencyEasy out-of-the-car access for an ancillary wiring
      $65.00
    • (0 reviews)
      # mpn4523996637
      Isuzu Ascender 4.2L 2003, Exhaust Pipe Gasket by Eastern Exhaust®. Inside Diameter: 2-17/32". EE™ is vertically integrated and manufactures vast amounts of strong steel tubing for use as straight and bent exhaust-pipes and tail-pipes...
      Will cover your exhaust needs and even moreBuilt with high performance in mind
      $7.45
    • (0 reviews)
      # mpn4523995680
      Isuzu Ascender 4.2L 2003, Mild Steel Exhaust Clamp by Eastern Exhaust®. Length: 3.25". Height: 3.75". Width: 0.5". This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a...
      Will cover your exhaust needs and even moreBuilt with high performance in mind
      $2.56
    • (0 reviews)
      # 128912063
      Isuzu Ascender 4.2L 2003, Extra Heavy Duty Mild Steel Welded Saddle Natural Exhaust Clamp by AP Exhaust®. This superior product was carefully designed with key attention to detail and manufactured from high-grade materials to the strict...
      Made from first-rate materialsEnsures outstanding durability
      $3.33 - $3.36
    • (0 reviews)
      # mpn470217907
      Isuzu Ascender 4.2L 2003, Exhaust Pipe Flange Gasket by Ansa®. If you're in need of a durable and efficient replacement exhaust part, rely on this OE-quality product from Ansa that provides both perfect fit and superior functionality...
      Completely compatible with your OE-unitFactory design to ensure a perfect fit
      $7.08
    • (0 reviews)
      # mpn975831
      Isuzu Ascender 4.2L 2003, Exhaust Clamp by Bosal®. Location: Center to Rear Muffler. Bosal has a vast selection of all necessary accessories and hardware to help you make the exhaust system installation or repair job quickly and eaily....
      Constructed for a hassle-free exhaust repairEnsures a precise fit
      $1.31
    • (0 reviews)
      # mpn4499447149
      Isuzu Ascender Base / Limited / LS 2003, 4 Wire Squre Oxygen Sensor Extension Harness by PSI®. 4 Squre Gray Connector. Extensions are 18" long for use with Gen III LS and Vortec Engines 2003 - up. allows plug-in solution requiring no...
      Designed for ultra high efficiencyEasy out-of-the-car access for an ancillary wiring
      $18.99
    • (0 reviews)
      # mpn888405507
      Isuzu Ascender 5.3L 2003, GM Original Equipment™ Exhaust Manifold Gasket by ACDelco®. Designed utilizing the latest technology, this product by ACDelco features premium quality and will perform better than advertised. Perfect for your...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $9.36
    • (0 reviews)
      # 332923504
      Isuzu Ascender 2003, 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 gaskets...
      Direct OEM replacement for a proper fitEnsures reliable sealing performance
      $7.23 - $9.15
    • (0 reviews)
      # mpn603903
      Isuzu Ascender 4.2L 2003, Multi-Layer Steel Exhaust Manifold Gasket 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 technology...
      High quality at an affordable priceExpertly made from premium materials
      $8.01
    • (1 review)
      # mpn597854
      Isuzu Ascender 5.3L 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
      $10.67
    • (0 reviews)
      # 710552962
      Isuzu Ascender 2003, Exhaust Manifold Gasket by Mahle®. 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 and...
      High quality at an affordable priceExpertly made from premium materials
      $10.17 - $15.25
    • (0 reviews)
      # 1092125839
      Isuzu Ascender 2003, Exhaust Manifold Gasket Set by Apex Auto®. Designed utilizing the latest technology, this product by Apex Auto features premium quality and will perform better than advertised. Perfect for your vehicle and...
      Quick accurate delivery with excellent fill-rateExcellent inventory availability
      $5.25 - $5.63
    • (0 reviews)
      # mpn2400737530
      Isuzu Ascender 4.2L 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
      $5.82
    • (0 reviews)
      # mpn1846340
      Isuzu Ascender 4.2L with Extended Wheelbase 2003, High Temperature Graphite with Wire Mesh Core Donut Exhaust Pipe Flange Gasket by Walker®. Material: High Temperature Graphite with Wire Mesh Core. With their extensive selection of...
      Makes installation quick and easyOptimal OE-style fit and quality
      $7.69
    • (0 reviews)
      # mpn1526296
      Isuzu Ascender 4.2L 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
      $5.77
    • (0 reviews)
      # mpn611135
      Isuzu Ascender 4.2L 2003, Graphite Exhaust Pipe Flange Gasket by Victor Reinz®. Location: Exhaust Pipe to Manifold. Material: Graphite. This product is made of high-quality materials to serve you for years to come. Designed using...
      High quality at an affordable priceExpertly made from premium materials
      $5.59
    • (0 reviews)
      # mpn4499447150
      Isuzu Ascender Base / Limited / LS 2003, Oxygen Sensor Bung by PSI®. These weld-in oxygen sensor fittings are a must when you're retrofitting either fuel injection or testing equipment to the exhaust of your vehicle. They can be placed...
      Designed for ultra high efficiencyEasy out-of-the-car access for an ancillary wiring
      $9.00
    • (0 reviews)
      # 231140950
      Isuzu Ascender 4.2L 2003, Exhaust Manifold Hardware Kit by Dorman®. Dorman manifold bolt and spring kits are just what you need to secure the front flange. Dorman offers products like fasteners and solutions to keep your vehicle running...
      Direct replacement for a proper fitBuilt to Last
      $5.34 - $5.41
    • (0 reviews)
      # mpn2386331
      Isuzu Ascender 4.2L 2003, Metal Exhaust Flange Stud and Nut Kit by Dorman®. Position: Front. Material: Metal. Dorman’s Exhaust Flange Stud & Nut provides you with the proper flange stud and nut for replacing your manifold. Save time...
      Direct replacement for a proper fit every timeDurable steel construction
      $5.99
    • (0 reviews)
      # 73597735
      Isuzu Ascender 4.2L 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
      $25.02 - $31.47
    • (0 reviews)
      # mpn915020554
      Isuzu Ascender 2003, Professional™ 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 Professional...
      ACDelco Professional Oxygen Sensors earn the name ACDelco by being put through a variety of tests, often under extreme and unusual conditionsCustomers can receive better gas mileage with a properly working oxygen sensor
      $33.87
    • (0 reviews)
      # 485522075
      Isuzu Ascender 2003, Oxygen Sensor Connector 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
      $28.50 - $42.52
    • (0 reviews)
      # 1107509095
      Isuzu Ascender 4.2L 2003, Aluminized Steel Exhaust Pipe Connector by Eastern Exhaust®. EE™ is vertically integrated and manufactures vast amounts of strong steel tubing for use as straight and bent exhaust-pipes and tail-pipes...
      Direct-fit precision engineered design features necessary brackets, flanges, shielding, flex and resonators for OE fit and appearanceMade from 100% aluminized heavy 14 and 16-gauge steel piping
      $26.35 - $27.63
    • (0 reviews)
      # mpn4523997131
      Isuzu Ascender 4.2L 2003, Aluminized Steel Exhaust Tail Pipe by Eastern Exhaust®. Length: 39.75". Width: 18.25". Height: 18.25". EE™ is vertically integrated and manufactures vast amounts of strong steel tubing for use as straight and...
      Direct-fit precision engineered design features necessary brackets, flanges and shielding for OE fit and appearanceMade from 100% aluminized heavy 14 and 16-gauge steel piping
      $31.33
    • (0 reviews)
      # 1075947898
      Isuzu Ascender 4.2L 2003, MSL Maximum Oval Body Aluminized Steel Exhaust Muffler by Eastern Exhaust®. Inlet Quantity: 1. Inlet Type: Pipe. Outlet Quantity: 1. EE™ engineers design mufflers using state-of-the-art SolidWorks 3-D...
      A muffler designed for the Professional installerConstructed from 100% Aluminized Steel
      $36.96 - $46.24
    • (0 reviews)
      # mpn4498747511
      Isuzu Ascender 4.2L Engine Family # 3GMXA04.2187 with MDV2 Weight Class with California Emission with LEV1 Standard 2003, Catalytic Converter and Pipe Assembly by Davico®. Emissions: CARB compliant. Converter Configuration: Direct Fit....
      Helps your vehicle emit harmless gasesDirect OEM replacement
      $486.22




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    Popular Products

    2003 Isuzu Ascender Performance Exhaust Systems Reviews

    Average rating:  4  4 - 2 reviews
    3.5 of 5
    It Was To Small
    It was to small had to take it get fitted and cut down.
    CPosted by Charles (Cape Girardeau, MO) / March 13, 2018
    2007 Chevy Avalanche
    Was this review helpful for you? Yes
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