20 Best 1998 Nissan Altima Catalytic Converter of 2023 – Romance University

After hours researching and comparing all models on the market, Romance University finds out the Best 1998 Nissan Altima Catalytic Converter of 2023. Check our ranking below.

2,195 (random number) Reviews Scanned

SaleRank No. #1

MagnaFlow 51206 OEM Grade Universal Catalytic Converter, 2.5" Inlet/Outlet (EPA Compliant)

EPA COMPLIANT - This catalytic converter is designed to meet or exceed Federal EPA (Environmental Protection Agency) OBDII emissions requirements in compliance with legal standards for federally registered vehicles with California or Federal EPA emissions systems. NOT for use in California, Colorado, New York, Maine.
UNIVERSAL INSTALLATION - Universal catalytic converters allow you to place it in the exact location and orientation required for your vehicle. Professional installation is highly recommended.
STAINLESS STEEL CONSTRUCTION - Durable stainless-steel construction and integrated OEM-like O2 ports guarantee optimal catalytic converter performance and reliability. The clamshell design features a continuous seam weld that ensures superior thermal insulation.
OEM GRADE - Built to OEM Grade standards, matching the performance and quality of your vehicle’s original catalytic converter.
5 YEAR / 50,000-MILE LIMITED WARRANTY - Worry-free ownership is made possible thanks to the 5 year/50,000-mile construction and 25,000-mile emissions warranty included with this MagnaFlow catalytic converter

Rank No. #2

MAHLE F7285 Catalytic Converter Gasket

All MAHLE Original gaskets meet or exceed the original equipment specifications providing the finest sealing products available
MAHLE Original gaskets utilizes OE equivalent or better materials in all our gaskets
Exhaust pipe gaskets from MAHLE Original are manufactured with the best materials to withstand high temperature applications.
The contents of MAHLE Original gaskets are packaged in shrink wrapped tray, giving you the added security of knowing that you have the right parts, prior to opening the package

Rank No. #3

Evan Fischer Catalytic Converter 46-State Legal Compatible with 1996-2001 Nissan Altima Front

Catalytic Converter Compatible with 1996-2001 Nissan Altima
Interchange Part Number: 40389, 13021, 0991403
Fitment: Direct Fit Aftermarket Replacement. Aluminized Steel
Federal EPA Standard, 46-State Legal (Cannot ship to or be used in vehicles originally purchased in CA, CO, NY or ME)
1-Year Warranty When Purchased through Auto Parts Giant

SaleRank No. #4

MagnaFlow Catalytic Converter 99206HM: 2.25"/2.5" Inlet/Outlet, HM Grade, Universal Fit (EPA Compliant)

EPA COMPLIANT - This catalytic converter is designed to meet or exceed Federal EPA (Environmental Protection Agency) OBDII emissions requirements in compliance with legal standards for federally registered vehicles with California or Federal EPA emissions systems. NOT for use in California, Colorado, New York, Maine.
UNIVERSAL INSTALLATION - Universal catalytic converters allow you to place it in the exact location and orientation required for your vehicle. Professional installation is highly recommended.
STAINLESS STEEL CONSTRUCTION - Durable stainless-steel construction and integrated OEM-like O2 ports guarantee optimal catalytic converter performance and reliability. The clamshell design features a continuous seam weld that ensures superior thermal insulation.
HEAVY METAL GRADE - Built to HM Grade standards, meaning that it contains extra catalysts to further improve the conversion of unwanted emissions.
5 YEAR / 50,000-MILE LIMITED WARRANTY - Worry-free ownership is made possible thanks to the 5 year/50,000-mile construction and 25,000-mile emissions warranty included with this MagnaFlow catalytic converter.

SaleRank No. #5

MagnaFlow Catalytic Converter 99005HM: 2.25"/2.25" Inlet/Outlet, HM Grade, Universal Fit (EPA Compliant)

EPA COMPLIANT - This catalytic converter is designed to meet or exceed Federal EPA (Environmental Protection Agency) OBDII emissions requirements in compliance with legal standards for federally registered vehicles with California or Federal EPA emissions systems. NOT for use in California, Colorado, New York, Maine.
UNIVERSAL INSTALLATION - Universal catalytic converters allow you to place it in the exact location and orientation required for your vehicle. Professional installation is highly recommended.
STAINLESS STEEL CONSTRUCTION - Durable stainless-steel construction and integrated OEM-like O2 ports guarantee optimal catalytic converter performance and reliability. The clamshell design features a continuous seam weld that ensures superior thermal insulation.
HEAVY METAL GRADE - Built to HM Grade standards, meaning that it contains extra catalysts to further improve the conversion of unwanted emissions.
5 YEAR / 50,000-MILE LIMITED WARRANTY - Worry-free ownership is made possible thanks to the 5 year/50,000-mile construction and 25,000-mile emissions warranty included with this MagnaFlow catalytic converter.

Rank No. #6

Davico 13018 Catalytic Converter, 1 Pack

Made in the USA
Decarbonize all vehicles over 80,000 miles using Davico part number 1540EA Sledgehammer Induction Cleaning Kit from Run-Rite prior to converter replacement
Gasket(s) included
Illegal for installation in NY on vehicles equipped with California emission systems; Not legal for use in California

SaleRank No. #7

Walker Standard EPA 15538 Direct Fit Catalytic Converter for Nissan D21

COMPATIBILITY – Fits 1990-1994 Nissan D21; 1989-1992 Nissan 240SX; 1998-1999 Nissan Altima; 1991-1994 Nissan Sentra; 1992-1993 Lexus ES300; 1994-1994 Lexus ES300; 1992-1993 Toyota Camry; 1994-1994 Toyota Camry; 1986-1986 Toyota Celica; 1987-1989 Toyota Ce
GET THE RIGHT PART -- Before purchasing, research to ensure that the part will fit your vehicle; enter all vehicle information (year, make, model, engine and trim) for compatibility and check qualifier notes
EPA COMPLIANT -- For use on pre-OBDII vehicles, 1995 and older. Consult your state's aftermarket converter regulations for details.
DIRECT-FIT DESIGN -- Direct-fit bolt-on replacement solution with OE-style hangers, brackets, routings and heat shields for easy installation that doesn't require specialized fabrication and/or welding
STRONG AND DURABLE -- Features thick OE-style flanges, hangers and brackets for strength and durability

Rank No. #8

Catalytic Converter Compatible with 1996-2001 Nissan Altima GLE GXE Front 2.4L

Fitment Notes: Fitment Notes
Location: Front - Compatible with 4 Cylinder 2.4L 96-2001 Nissan Altima Catalytic Converter
Direct fit replacement
Installs the same as factory unit
Same dimensions as Original Part

SaleRank No. #9

MagnaFlow Catalytic Converter 99104HM: 2"/2" Inlet/Outlet, HM Grade, Universal Fit (EPA Compliant)

EPA COMPLIANT - This catalytic converter is designed to meet or exceed Federal EPA (Environmental Protection Agency) OBDII emissions requirements in compliance with legal standards for federally registered vehicles with California or Federal EPA emissions systems. NOT for use in California, Colorado, New York, Maine.
UNIVERSAL INSTALLATION - Universal catalytic converters allow you to place it in the exact location and orientation required for your vehicle. Professional installation is highly recommended.
STAINLESS STEEL CONSTRUCTION - Durable stainless-steel construction and integrated OEM-like O2 ports guarantee optimal catalytic converter performance and reliability. The clamshell design features a continuous seam weld that ensures superior thermal insulation.
HEAVY METAL GRADE - Built to HM Grade standards, meaning that it contains extra catalysts to further improve the conversion of unwanted emissions.
5 YEAR / 50,000-MILE LIMITED WARRANTY - Worry-free ownership is made possible thanks to the 5 year/50,000-mile construction and 25,000-mile emissions warranty included with this MagnaFlow catalytic converter.

Rank No. #10

MagnaFlow Catalytic Converter 51005: 2.25"/2.25" Inlet/Outlet, OEM Grade, Universal Fit (EPA Compliant)

FEDERAL/EPA COMPLIANT - Extensive testing and certification processes are followed to guarantee that 51005 meets emissions standards set by the Federal EPA. Not for use in California, Colorado, New York, Maine.
UNIVERSAL INSTALLATION - Universal catalytic converters allow you to place it in the exact location and orientation required for your vehicle. Professional installation is highly recommended.
CLAMSHELL DESIGN - Durable stainless-steel construction and integrated OEM-like O2 ports guarantee optimal catalytic converter performance and reliability. The clamshell design features a continuous seam weld that ensures superior thermal insulation.
OEM GRADE - Built to OEM Grade standards, matching the performance and quality of your vehicle’s original catalytic converter.
5 YEAR / 50,000-MILE LIMITED WARRANTY - Worry-free ownership is made possible thanks to the 5 year/50,000-mile construction and 25,000-mile emissions warranty included with this MagnaFlow catalytic converter.

Rank No. #11

MagnaFlow Catalytic Converter 457105: 2.25"/2.25" Inlet/Outlet, California Grade, Universal Fit (CARB Compliant)

PLEASE VERIFY FITMENT AND EFN COMPATIBILITY PRIOR TO PURCHASE.
CALIFORNIA/CARB COMPLIANT - Extensive testing and certification processes are followed to guarantee that 457105 meets emissions standards set by CARB (California Air Resources Board). This catalytic converter is also compliant in states adhering to these standards.
UNIVERSAL INSTALLATION - Universal catalytic converters allow you to place it in the exact location and orientation required for your vehicle. Professional installation is highly recommended.
CLAMSHELL DESIGN - Durable stainless-steel construction and integrated OEM-like O2 ports guarantee optimal catalytic converter performance and reliability. The clamshell design features a continuous seam weld that ensures superior thermal insulation.
CARB GRADE - Catalytic converter 457105 is designed to meet California emissions standards, as well of those of other CARB-regulated states.

Rank No. #12

PHILTOP Catalytic Converter Fit for 2.5" Inlet/Outlet Universal High Flow Stainless Steel Catalytic Converter

Fitment: Front Left Rear Right Catalytic Convertor Compatible with Universal 2.5"
EPA Approved. Only for use with Federal Emissions models. It is not legal to sell, install, or use on vehicles registered in California, New York, or Maine.
High flow catalytic convert Internal honeycomb ceramic substrate with porous structure design, increased flow rate and surface area, Maximizes catalytic convertor efficiency
Please double check the information of our products with your car. #OE Part Number: 410250
If you have any questions about our products, please feel free to contact us and we will be happy to answer them for you.

Rank No. #13

MARSFLUX Catalytic Converter, 2PCS 2.5" inch Universal Spun Catalytic Converter High Flow Stainless Steel (EPA Compliant)

[WIDE COMPATIBILITY] --- Catalytic Converter Compatible with 2.5" inch Universal Spun Catalytic Converter High Flow Stainless Steel .These free-flow catalytic converters have bolt-on connections and flange to flange design for effortless installation.
[HIGH FLOW PERFORMANCE ] --- Our catalytic converters are built to meet OEM specifications and have EPA certification. They also feature a high flow design to increase conversion efficiency and vehicle power without sacrificing flow rate.
[STAINLESS STEEL OUT SHELL] --- The high flow catalytic converters with heavy-duty stainless steel construction feature maximum durability. Firmly welded connections can withstand high temper and pressures for longer service life.
[FLANGE TO FLANGE DESIGN] --- These free-flow catalytic converters have bolt-on connections and flange to flange design for effortless installation. They're also complete with full accessories as gaskets and hardware, facilitating your replacement.
[COMPLIANCE WITH OBD III] --- The direct-fit catalytic converters are compliant with OBD III Standards but not with CARB. Thus, they can be used in most states except California& New York, not legal for use on vehicles required to meet CA emission standards.

Rank No. #14

KAC Catalytic Converters,2.5" Inlet/Outlet Catalytic Converter Universal High Flow Front 2PCS Catalytic Converter Direct-Fit with O2 Port,410250 (EPA Compliant)

【WIDE COMPATIBILITY】 Catalytic Converter Compatible with 2.5" inch Universal Spun Catalytic Converter High Flow Stainless Steel .These free-flow catalytic converters have bolt-on connections and flange to flange design for effortless installation.
【OEM High Flow Operation】Our catalytic converters are designed to meet OEM specifications and even better than OEM in performance and appearance. And most importantly, the products have been certified by EPA, featuring a high flow design to increase conversion efficiency without sacrificing flow rate.
【Compliance with OBD III】The catalytic converters are compliant with OBD III Standards. With this high-quality converter, it is so easy for your vehicle to meet the Federal Emission Standards. (Excluding California)
【High Quality】: The stainless steel body of high-quality aluminized pipes is not easy to rust, ensuring excellent oxygen storage capacity and long service life. The double-layer high temperature resistant ceramic carrier greatly increases the flow rate and surface area, thereby improving power and fuel economy. Replace with a new catalytic converter to provide you with excellent clean air performance, restore the quietness of the vehicle, and restore a good driving experience for you.
【Protecting the Earth】The internal structure of the high flow catalytic converters features honeycomb. Its internal ceramic substrates contain high-load precious metal catalysts, including Pt, Rh, and Pd, to enhance purification efficiency and intensity. They can effectively purify vehicles the waste exhausts by converting pernicious gases, such as CO, HC, NOx into CO₂, H₂O, N₂, to protect the beautiful earth we are living in better.

Rank No. #15

Catalytic Converter, KAX 2PCS 2.5" inch Universal Spun Catalytic Converter High Flow Stainless Steel (EPA Compliant)

[WIDE COMPATIBILITY] --- Catalytic Converter Compatible with 2.5" inch Universal Spun Catalytic Converter High Flow Stainless Steel .These free-flow catalytic converters have bolt-on connections and flange to flange design for effortless installation.
[HIGH FLOW PERFORMANCE ] --- Our catalytic converters are built to meet OEM specifications and have EPA certification. They also feature a high flow design to increase conversion efficiency and vehicle power without sacrificing flow rate.
[FLANGE TO FLANGE DESIGN] --- These free-flow catalytic converters have bolt-on connections and flange to flange design for effortless installation. They're also complete with full accessories as gaskets and hardware, facilitating your replacement.
[STAINLESS STEEL OUT SHELL] --- The high flow catalytic converters with heavy-duty stainless steel construction feature maximum durability. Firmly welded connections can withstand high temper and pressures for longer service life.
[COMPLIANCE WITH OBD III] --- The direct-fit catalytic converters are compliant with OBD III Standards but not with CARB. Thus, they can be used in most states except California& New York, not legal for use on vehicles required to meet CA emission standards.

SaleRank No. #16

MagnaFlow Catalytic Converter 444006: 2.5"/2.5" Inlet/Outlet, California Grade, Universal Fit (CARB Compliant)

PLEASE VERIFY FITMENT AND EFN COMPATIBILITY PRIOR TO PURCHASE.
CALIFORNIA/CARB COMPLIANT - Extensive testing and certification processes are followed to guarantee that 444006 meets emissions standards set by CARB (California Air Resources Board). This catalytic converter is also compliant in states adhering to these standards.
UNIVERSAL INSTALLATION - Universal catalytic converters allow you to place it in the exact location and orientation required for your vehicle. Professional installation is highly recommended.
CLAMSHELL DESIGN - Durable stainless-steel construction and integrated OEM-like O2 ports guarantee optimal catalytic converter performance and reliability. The clamshell design features a continuous seam weld that ensures superior thermal insulation.
CARB GRADE - Catalytic converter 444006 is designed to meet California emissions standards, as well of those of other CARB-regulated states.

Rank No. #17

MAHLE Original F7281 Catalytic Converter Gasket

All MAHLE Original gaskets meet or exceed the original equipment specifications providing the finest sealing products available
MAHLE Original gaskets utilizes OE equivalent or better materials in all our gaskets
Exhaust pipe gaskets from MAHLE Original are manufactured with the best materials to withstand high temperature applications.
The contents of MAHLE Original gaskets are packaged in shrink wrapped tray, giving you the added security of knowing that you have the right parts, prior to opening the package
Fit type: Vehicle Specific

SaleRank No. #18

MagnaFlow 444005 Large Stainless Steel CA Legal Universal Fit Catalytic Converter

Package Dimensions: 14 L x 4.5 H x 6.63 W (inches)
Package Weight : 5 pounds
Fit type: Universal Fit
Country of Origin : United States

SaleRank No. #19

MagnaFlow 441004 Large Stainless Steel CA Legal Universal Fit Catalytic Converter

Seam welded body
1/2 Lap joint at neck and body
Stainless steel construction
CARB compliant / 50 State legal

Rank No. #20

Walker CalCat CARB 82574 Direct Fit Catalytic Converter 2.12" Outlet (OD) for Ford Taurus

COMPATIBILITY – Fits 1995-1995 Nissan Altima; 1996-1996 Nissan Altima; 1997-1997 Nissan Altima; 1998-1998 Nissan Altima; 1999-1999 Nissan Altima; 2000-2000 Nissan Altima; 2001-2001 Nissan Altima
GET THE RIGHT PART -- Before purchasing, research to ensure that the part will fit your vehicle; enter all vehicle information (year, make, model, engine and trim) for compatibility and check qualifier notes
CARB COMPLIANT -- EO# D-182-53 -- For use on OBDII vehicles, 1996 and newer and non-OBD 1995 and older. For states requiring CARB-compliant replacement converters. Consult your state’s aftermarket converter regulations.
DIRECT-FIT DESIGN -- Direct-fit bolt-on replacement solution with OE-style hangers, brackets, routings and heat shields for easy installation that doesn't require specialized fabrication or welding
SUPERIOR TECHNOLOGY -- Optimal high technology washcoat formulated to deliver superior performance (as compared to EPA-compliant converters)

Last update on 2023-08-10 / Affiliate links / Product Titles, Images, Descriptions from Amazon Product Advertising API

How Do You Buy The Best 1998 Nissan Altima Catalytic Converter?

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20 Best 1998 Nissan Altima Catalytic Converter of 2023 – Romance University

How Do You Buy The Best 1998 Nissan Altima Catalytic Converter?

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