MagnaFlow
Direct-Fit CALIFORNIA OBDII CONVERTERS

MagnaFlow 452405 Catalytic Converter - Front Rearward

Brand MagnaFlow 452405
Position Front Rearward
Mounting Hardware Included No
Universal Or Specific Fit Specific
Grade Type Regular
Tube Material Stainless steel
Inlet Type Bolt-on
Outlet Type Bolt-on
Heat Shield Attached No
Body Material Stainless steel
Substrate Material Ceramic
Inlet Gasket Included No
Inlet Mounting Hardware Included No
Outlet Mounting Hardware Included No
Overall Length 40.375
Air Tube Count 0
Air Tube Adaptable No
Clamp Included No
Converter Quantity 1
Finish Stainless steel
Hangers Included Yes
Heat Shield Material None
Main Piping Diameter 2.25
Oxygen Sensor Location Pre and post converter
Type Direct-fit
Product line Direct-Fit CALIFORNIA OBDII CONVERTERS
Fits INFINITI and Nissan · 4 vehicles

Direct-fit replacement. Installs bolt-on with no cutting or welding required.

Stainless steel construction. Resists corrosion for long-lasting exhaust service.

CARB compliant. Meets California Air Resources Board requirements.

Cross-references 20020-3Y400, 20020-4L800 and 200203Y400 for the same application. See all 6.

$664.57Free shipping
In stock · usually ships same day before 1pm CST
Step 1 — Confirm fitment
Free return shipping if it doesn't fit when you check fitment here first.

Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
Step 2 — Quantity
Order total $664.57
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.

California OBDII Direct-Fit Converter

MagnaFlow 452405 is a California Grade, CARB-compliant direct-fit catalytic converter for specific 2000-2001 Nissan Maxima and 2000-2001 Infiniti I30 applications. It is built for bolt-on replacement, with stainless steel construction and a ceramic substrate to help restore emissions system performance without cutting or welding.

Direct-Fit Features

  • Specific fit for select 2000-2001 Nissan Maxima and 2000-2001 Infiniti I30 models
  • CARB-compliant design for legal use in California and other CARB-restricted states on listed vehicles
  • Stainless steel tube and body construction for corrosion resistance
  • Mandrel-bent tubing and OE-style spun body design
  • Single laser fusion weld to reduce leak potential
  • Bolt-on inlet and outlet for direct replacement installation
  • Pre- and post-converter oxygen sensor locations
  • Hangers included; no heat shield attached

Product Details

MagnaFlow’s Direct-Fit CALIFORNIA OBDII CONVERTERS line is engineered as an OE-style emissions replacement for vehicles that require a precise fit and CARB compliance. Part number 452405 is designed around the original equipment layout for the 2000-2001 Nissan Maxima and 2000-2001 Infiniti I30, with fitment verified through 3D scanning during development. The compact, low-mass design supports thermal efficiency, while the stainless steel finish and ceramic substrate are selected for durability in exhaust service.

This part cross-references OE numbers 20020-3Y400 and 20020-4L800 for the same application.

What This Converter Helps Address

  • Check engine light concerns related to catalytic converter efficiency
  • Failed emissions testing on listed Nissan Maxima and Infiniti I30 applications
  • Exhaust leaks at the converter body or weld area
  • Corrosion-related replacement needs in the exhaust system
  • Fitment issues from non-direct replacement converters

Installation Notes

Fits 2000-2001 Nissan Maxima, Front Rearward. Fits 2000-2001 Infiniti I30, Front Rearward. Installation uses bolt-on connections and does not require cutting or welding when installed with the proper tools. Verify oxygen sensor placement, flange alignment, and vehicle emissions certification before installation.

Quality Assurance

MagnaFlow uses 3D scanning and OE-style design replication during development to support fit and function on the listed vehicles. This converter is built to meet or exceed California Air Resources Board requirements for the specified applications and has undergone additional CARB compliance testing for legal use where permitted.

This part fits 4 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
2001INFINITII303.0LV6Front RearwardCertification Level : LEV1 LEV; CARB Executive Order D-193-124; Engine Family Number 1NSXV03.0C6A; Direct-Fit CALIFORNIA OBDII CONVERTERS
2001NissanMaxima3.0LV6Front RearwardCertification Level : LEV1 LEV; CARB Executive Order D-193-124; Engine Family Number 1NSXV03.0C6A; Direct-Fit CALIFORNIA OBDII CONVERTERS
2000INFINITII303.0LV6Front RearwardCertification Level : LEV1 LEV; CARB Executive Order D-193-124; Engine Family Number YNSXV03.036A; Direct-Fit CALIFORNIA OBDII CONVERTERS
2000NissanMaxima3.0LV6Front RearwardCertification Level : LEV1 LEV; CARB Executive Order D-193-124; Engine Family Number YNSXV03.036A; Direct-Fit CALIFORNIA OBDII CONVERTERS
Directly replaces or cross-references 6 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
20020-3Y40020020-4L800200203Y400200204L800B08A0-4L700B08A04L700