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Choose your Engine for your 2003 Infiniti I35

  • 6 Cyl 3.5L

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The Following brands are available based on your search.

  • AP Exhaust
    AP Exhaust
  • Davico Converters
    Davico Converters
  • Eastern Catalytic
    Eastern Catalytic
  • Flowmaster
    Flowmaster
  • Magnaflow
    Magnaflow
  • Original Performance
    Original Performance
  • Stainless Works
    Stainless Works
  • Walker Exhaust
    Walker Exhaust

Showing Products For 2003 Infiniti I35 Catalytic Converter

Below are all the different brands and applications for 2003 Infiniti I35 Catalytic Converter

Showing 1 - 10 of 73 Products for Catalytic Converter.

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Magnaflow
2003 Infiniti I35 Catalytic Converter - Front Right 6 Cyl 3.5L Magnaflow - 2.25in. Universal California OBDII Catalytic Converter

P311-5D17E6C    444105  New

Qty:
In Stock & Ready to Ship
$436.00
Magnaflow Catalytic Converter  Front Right
  • Universal Catalytic Converter - 2.25in.
  • CARB Executive Order D-193-96 Engine Family Number 3NSXV03.5C7A ; Certification Level : LEV1 LEV OE Spec Cutting and Welding Required During Installation
  • Universal Catalytic Converter - 2.25in.
  • 2.25in. Universal California OBDII Catalytic Converter
  • Product Attributes:
    • Air Tube Adaptable: No
    • Body Height: 3.75
    • Body Length: 9
    • Body Shape: Oval
    • Body Type: Clam Shell
    • Body Width: 5.5
    • Heat Shield Attached: Yes
    • Heat Shield Included: Yes
    • Heat Shield Material: Aluminized Steel
    • Inlet Attachment: Weld-on
    • Inlet Diameter: 2.25
    • Inlet Orientation: Straight
    • Outlet Attachment: Weld-on
    • Outlet Diameter: 2.25
    • Outlet Orientation: Straight
    • Overall Length: 13
    • Sensor Port Count: 0
    • Substrate Material: Ceramic
    • Subtitle: California / Carb Compliant
Brand: Magnaflow
Position: Front Right
Additional Fitment Information:
Vehicle Position Block Engine CID CC
2003 - Infiniti I35 Front Right V 6 Cyl 3.5L - 3498
Magnaflow
2003 Infiniti I35 Catalytic Converter - Rear 6 Cyl 3.5L Magnaflow - 2.25in. Universal California OBDII Catalytic Converter

P311-56F46A3    441305  New

Qty:
In Stock & Ready to Ship
$670.00
Magnaflow Catalytic Converter  Rear
  • Universal Catalytic Converter - 2.25in.
  • CARB Executive Order D-193-96 Engine Family Number 3NSXV03.5C7A ; Certification Level : LEV1 LEV OE Spec Cutting and Welding Required During Installation
  • Universal Catalytic Converter - 2.25in.
  • 2.25in. Universal California OBDII Catalytic Converter
  • Product Attributes:
    • Air Tube Adaptable: No
    • Body Height: 3.75
    • Body Length: 9
    • Body Shape: Oval
    • Body Type: Clam Shell
    • Body Width: 5.5
    • Heat Shield Attached: Yes
    • Heat Shield Included: Yes
    • Heat Shield Material: Aluminized Steel
    • Inlet Attachment: Weld-on
    • Inlet Diameter: 2.25
    • Inlet Orientation: Straight
    • Outlet Attachment: Weld-on
    • Outlet Diameter: 2.25
    • Outlet Orientation: Straight
    • Overall Length: 13
    • Sensor Port Count: 0
    • Substrate Material: Ceramic
    • Subtitle: California / Carb Compliant
Brand: Magnaflow
Position: Rear
Additional Fitment Information:
Vehicle Position Block Engine CID CC
2003 - Infiniti I35 Rear V 6 Cyl 3.5L - 3498
Magnaflow
2003 Infiniti I35 Catalytic Converter - Front Left 6 Cyl 3.5L Magnaflow - 2.25in. Universal California OBDII Catalytic Converter

P311-5D17E6C    444105  New

Qty:
In Stock & Ready to Ship
$436.00
Magnaflow Catalytic Converter  Front Left
  • Universal Catalytic Converter - 2.25in.
  • CARB Executive Order D-193-96 Engine Family Number 3NSXV03.5C7A ; Certification Level : LEV1 LEV OE Spec Cutting and Welding Required During Installation
  • Universal Catalytic Converter - 2.25in.
  • 2.25in. Universal California OBDII Catalytic Converter
  • Product Attributes:
    • Air Tube Adaptable: No
    • Body Height: 3.75
    • Body Length: 9
    • Body Shape: Oval
    • Body Type: Clam Shell
    • Body Width: 5.5
    • Heat Shield Attached: Yes
    • Heat Shield Included: Yes
    • Heat Shield Material: Aluminized Steel
    • Inlet Attachment: Weld-on
    • Inlet Diameter: 2.25
    • Inlet Orientation: Straight
    • Outlet Attachment: Weld-on
    • Outlet Diameter: 2.25
    • Outlet Orientation: Straight
    • Overall Length: 13
    • Sensor Port Count: 0
    • Substrate Material: Ceramic
    • Subtitle: California / Carb Compliant
Brand: Magnaflow
Position: Front Left
Additional Fitment Information:
Vehicle Position Block Engine CID CC
2003 - Infiniti I35 Front Left V 6 Cyl 3.5L - 3498
Magnaflow
2003 Infiniti I35 Catalytic Converter - Front Left 6 Cyl 3.5L Magnaflow - Direct-Fit CALIFORNIA OBDII CONVERTERS

P311-3587C29    444311  New

B08A1-5Y700 , B08A15Y700

Qty:
In Stock & Ready to Ship
$1,184.00
Magnaflow Catalytic Converter  Front Left
  • Direct-Fit Catalytic Converter
  • CARB Executive Order D-193-96 Engine Family Number 3NSXV03.5C7A ; Certification Level : LEV1 LEV
  • Direct-Fit Catalytic Converter
  • Direct-Fit CALIFORNIA OBDII CONVERTERS
  • Product Attributes:
    • Air Tube Adaptable: No
    • Inlet Attachment: Bolt-on
    • Main Piping Diameter: 4
    • Mounting Hardware Included: Yes
    • Overall Length: 8.4
    • Substrate Material: Ceramic
    • Subtitle: California / Carb Compliant
Brand: Magnaflow
Position: Front Left
Additional Fitment Information:
Vehicle Position Block Engine CID CC
2003 - Infiniti I35 Front Left V 6 Cyl 3.5L - 3498
Davico Converters
2003 Infiniti I35 Catalytic Converter - Front Right 6 Cyl 3.5L Davico Converters - Exact-Fit Catalytic Converter - Pre converter

P311-15076B7    14022  New

Qty:
In Stock & Ready to Ship
$316.97
Davico Converters Catalytic Converter  Front Right
  • Direct Fit Catalytic Converter
  • Not legal for use in California Illegal for installation in NY on vehicles equipped with California emission systems Firewall Side
  • Exact-Fit Catalytic Converter - Pre converter
  • Product Attributes:
    • Inlet 1 Gsk.: Eg24330
    • Large Pkg. Fee: No
    • Outlet 1 Gsk.: Eg24004
    • Over All Length: 8.25 In.
    • Use Davico Decarbonizing Induction Kit 1540ea: Yes
  • Davico Exact-Fit Catalytic Converters are designed using the original equipment sample parts so that we make sure they fit and function properly on your vehicle. Our parts utilize only high quality emissions reducing catalyst specifically designed to meet the demands current OBDII vehicles.
Brand: Davico Converters
Position: Front Right
Additional Fitment Information:
Vehicle Position Block Engine CID CC
2003 - Infiniti I35 Front Right V 6 Cyl 3.5L - 3498
Davico Converters
2003 Infiniti I35 Catalytic Converter - Rear 6 Cyl 3.5L Davico Converters - Exact-Fit Catalytic Converter

P311-43AEA4A    18250  New

Qty:
In Stock & Ready to Ship
$254.13
Davico Converters Catalytic Converter  Rear
  • Direct Fit Catalytic Converter
  • Not legal for use in California Illegal for installation in NY on vehicles equipped with California emission systems
  • Exact-Fit Catalytic Converter
  • Product Attributes:
    • Gaskets Included: Yes
    • Large Pkg. Fee: No
    • Over All Length: 12.5
    • Use Davico Decarbonizing Induction Kit 1540ea: Yes
  • Davico Exact-Fit Catalytic Converters are designed using the original equipment sample parts so that we make sure they fit and function properly on your vehicle. Our parts utilize only high quality emissions reducing catalyst specifically designed to meet the demands current OBDII vehicles.
Brand: Davico Converters
Position: Rear
Additional Fitment Information:
Vehicle Engine Designation Position Block Engine CID CC
2003 - Infiniti I35 VQ35DE Rear V 6 Cyl 3.5L - 3498
Walker Exhaust
2003 Infiniti I35 Catalytic Converter - Center 6 Cyl 3.5L Walker Exhaust - EPA

P311-1C5C795    16209  New

099-1435 , 1079 , 40477 , 49365 , 49366 , 50877 , 50878 , 641183 , 940079 , 941079

Qty:
In Stock & Ready to Ship
$333.40
Walker Exhaust Catalytic Converter  Center
  • Ultra EPA Direct Fit Catalytic Converter
  • Fits Fed. & Calif. Emission Models Not legal for sale or use in California and other CARB-compliant states. Legal in New York and Maine on EPA Federal Emission Equipped Vehicles only. Consult the aftermarket converter regulations in your state for details. Exhaust Gasket is Recommended Additional part(s) needed to complete installation - 31739 and 31576 Ultra Direct Fit Type
  • Walker Exhaust Ultra EPA Catalytic Converter 16209 Direct Fit Catalytic Converter
  • EPA
  • Product Attributes:
    • Air Tube: No
    • Air Tube Count: No
    • Body Height:
      • 3.5
      • 3.500
    • Body Length:
      • 5.25
      • 5.250
    • Body Shape: Round
    • Body Width:
      • 3.5
      • 3.500
    • California Air Resources Board (CARB) Certified: No
    • Fitment: Direct Fit
    • Grade Type: Regular
    • Inlet 1 Type: 4 Bolt Welded Flange
    • Inlet Connection Type: 4 Bolt Welded Flange
    • Inlet Type: 4 Bolt Welded Flange
    • Max Year Covered: 2004
    • Min Year Covered: 2002
    • Most Popular Make / Model: Nissan Maxima
    • Most Popular Year: 2002
    • Mounting Hardware Included: No
    • Outlet 1 Type: 3 Bolt Welded Flange
    • Outlet Connection Type: 3 Bolt Welded Flange
    • Outlet Type: 3 Bolt Welded Flange
    • Overall Length:
      • 8.75
      • 8.750
    • Product Grade: Economy
    • Substrate Material: Ceramic
    • Total Part VIO: 161581
  • Designed to comply with EPA standards while delivering premium performance with assured compliance, Walker® Ultra® Direct-Fit Catalytic Converters provide premium performance and are available for import and domestic OBDII (1996 and newer) vehicles.
Brand: Walker Exhaust
Position: Center
Additional Fitment Information:
Vehicle Position Block Engine CID CC
2003 - Infiniti I35 Center V 6 Cyl 3.5L - 3498
Walker Exhaust
2003 Infiniti I35 Catalytic Converter - Front 6 Cyl 3.5L Walker Exhaust - EPA

P311-36AEFFE    16362  New

099-1434 , 1078 , 40476 , 49365 , 49366 , 50877 , 50878 , 641182 , 940078 , 941078

Qty:
In Stock & Ready to Ship
$619.02
Walker Exhaust Catalytic Converter  Front
  • Ultra EPA Direct Fit Catalytic Converter
  • Fits Fed. & Calif. Emission Models Not legal for sale or use in California and other CARB-compliant states. Legal in New York and Maine on EPA Federal Emission Equipped Vehicles only. Consult the aftermarket converter regulations in your state for details. Exhaust Gasket is Recommended Additional Part(s) Needed To Complete Installation: 31377 Ultra Direct Fit Type
  • Walker Exhaust Ultra EPA Catalytic Converter 16362 Direct Fit Catalytic Converter
  • EPA
  • Product Attributes:
    • Air Tube: No
    • Air Tube Count: No
    • Body Height:
      • 3.89
      • 3.890
    • Body Length:
      • 4.5
      • 4.500
    • Body Shape: Round
    • Body Width:
      • 3.89
      • 3.890
    • California Air Resources Board (CARB) Certified: No
    • Fitment: Direct Fit
    • Grade Type: Regular
    • Inlet 1 Type: 6 Bolt Welded Flange
    • Inlet Connection Type: 6 Bolt Welded Flange
    • Inlet Type: 6 Bolt Welded Flange
    • Max Year Covered: 2004
    • Min Year Covered: 2002
    • Most Popular Make / Model: Nissan Maxima
    • Most Popular Year: 2002
    • Mounting Hardware Included: Yes
    • Outlet 1 Type: 3 Bolt Welded Flange
    • Outlet Connection Type: 3 Bolt Welded Flange
    • Outlet Type: 3 Bolt Welded Flange
    • Overall Length:
      • 10.5
      • 10.500
    • Product Grade: Economy
    • Substrate Material: Ceramic
    • Total Part VIO: 161581
  • Designed to comply with EPA standards while delivering premium performance with assured compliance, Walker® Ultra® Direct-Fit Catalytic Converters provide premium performance and are available for import and domestic OBDII (1996 and newer) vehicles.
Brand: Walker Exhaust
Position: Front
Additional Fitment Information:
Vehicle Position Block Engine CID CC
2003 - Infiniti I35 Front V 6 Cyl 3.5L - 3498
Walker Exhaust
2003 Infiniti I35 Catalytic Converter - Front Left 6 Cyl 3.5L Walker Exhaust - CalCat

P311-5C6AA54    82584  New

941078

Qty:
In Stock & Ready to Ship
$788.92
Walker Exhaust Catalytic Converter  Front Left
  • CalCat CARB Direct Fit Catalytic Converter
  • CARB Executive Order D-182-53 Engine Family Number (EFN) 3NSXV03.5C7A Legal for sale and use in California and other states requiring CARB-compliant replacement converters. Consult the aftermarket converter regulations in your state for details. Additional Part(s) Needed To Complete Installation: 31566 Includes Front Gasket Direct Fit Type
  • Walker Exhaust CalCat CARB 82584 Direct Fit Catalytic Converter
  • CalCat
  • Product Attributes:
    • Air Tube: No
    • Air Tube Count: No
    • Body Height:
      • 4
      • 4.000
    • Body Length:
      • 4.5
      • 4.500
    • Body Shape: Round
    • Body Width:
      • 4
      • 4.000
    • California Air Resources Board (CARB) Certified: Yes
    • Grade Type: Regular
    • Inlet 1 Type: 6 Bolt Welded Flange
    • Inlet Type: 6 Bolt Welded Flange
    • Max Year Covered: 2004
    • Min Year Covered: 2002
    • Most Popular Make / Model: Nissan Maxima
    • Most Popular Year: 2002
    • Mounting Hardware Included: Yes
    • Outlet 1 Type: 3 Bolt Welded Flange
    • Outlet Type: 3 Bolt Welded Flange
    • Overall Length:
      • 9
      • 9.000
    • Oxygen Sensor Location: Post Catalyst
    • Product Grade: Economy
    • Substrate Material: Ceramic
    • Total Part VIO: 111641
  • Designed, tested and validated for assured compliance to meet CARB standards, Walker® CalCat® Direct-Fit Catalytic Converters are available for OBDII (1996 and newer) and non-OBD (1995 and older) vehicles and delivers a precise OE-style fit.
Brand: Walker Exhaust
Position: Front Left
Additional Fitment Information:
Vehicle Position Block Engine CID CC
2003 - Infiniti I35 Front Left V 6 Cyl 3.5L - 3498
Walker Exhaust
2003 Infiniti I35 Catalytic Converter - Rear 6 Cyl 3.5L Walker Exhaust - EPA

P311-3DD0359    93253  New

097-0373 , 2226 , 2576r , 51206 , 51756 , 608285 , 608286 , 608294 , 608746 , 6906R , 70218 , 70249 , 78225 , 79225 , 92156 , 92256 , 92466 , 99206HM , 99756HM

Qty:
In Stock & Ready to Ship
$161.60
Walker Exhaust Catalytic Converter  Rear
  • Ultra EPA Universal Catalytic Converter
  • Fits Fed. & Calif. Emission Models Not legal for sale or use in California and other CARB-compliant states. Legal in New York and Maine on EPA Federal Emission Equipped Vehicles only. Consult the aftermarket converter regulations in your state for details. Ultra Universal Type Modifications and/or Additional Parts May Be Required for Installation
  • Walker Exhaust Ultra EPA Catalytic Converter 93253 Universal Catalytic Converter
  • EPA
  • Product Attributes:
    • Air Tube: No
    • Air Tube Count: No
    • Body Height:
      • 4.5
      • 4.500
    • Body Length: 8.000
    • Body Shape: Round
    • Body Width: 4.375
    • California Air Resources Board (CARB) Certified: No
    • Fitment: Universal
    • Grade Type: Regular
    • Inlet 1 Inside Diameter: 2.5
    • Inlet 1 Type: Pipe Connection
    • Inlet Connection Type: Pipe Connection
    • Inlet Diameter 1: 2.500
    • Inlet Diameter Designation: Inside Diameter
    • Inlet Inside Diameter: 2.5
    • Inlet Type: Pipe Connection
    • Max Year Covered: 2016
    • Maximum Engine Size: 5.9l
    • Maximum Test Weight: 8500
    • Min Year Covered: 1996
    • Most Popular Make / Model: Chevrolet Silverado 1500
    • Most Popular Year: 2007
    • Mounting Hardware Included: No
    • Outlet 1 Inside Diameter: 2.5
    • Outlet 1 Type: Pipe Connection
    • Outlet Connection Type: Pipe Connection
    • Outlet Diameter 1: 2.500
    • Outlet Diameter Designation: Inside Diameter
    • Outlet Inside Diameter: 2.5
    • Outlet Type: Pipe Connection
    • Overall Length:
      • 11.5
      • 11.500
    • Product Grade: Economy
    • Substrate Material: Ceramic
    • Total Part VIO: 33240977
  • Designed to comply with EPA emissions requirements while delivering premium performance and durability with assured compliance, Walker® Ultra® Universal Catalytic Converters are available for import and domestic OBDII (1996 and newer) vehicles.
Brand: Walker Exhaust
Position: Rear
Additional Fitment Information:
Vehicle Position Block Engine CID CC
2003 - Infiniti I35 Rear V 6 Cyl 3.5L - 3498

Showing 1 - 10 of 73 Products for Catalytic Converter.