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The 10 Best Automotive Replacement Catalytic Converter Kits to Buy – September 2021 edition

Looking for the best Automotive Replacement Catalytic Converter Kits?

Discover now our comparison of the best Automotive Replacement Catalytic Converter Kits. It is never easy to choose from the wide range of offers. On the market, you will find an incalculable number of models, all at different prices. And as you will discover, the best Automotive Replacement Catalytic Converter Kits are not always the ones at the highest prices! Many criteria are used, and they make the richness and relevance of this comparison.
To help you make the best choice among the hundreds of products available, we have decided to offer you a comparison of the Automotive Replacement Catalytic Converter Kits in order to find the best quality/price ratio. In this ranking, you will find products listed according to their price, but also their characteristics and the opinions of other customers. Also discover our comparisons by categories. You won’t have to choose your products at random anymore.

No. 1
MagnaFlow Universal Catalytic Converter Standard Grade Federal/EPA Compliant 94006 - Stainless Steel 2.5in Inlet/Outlet Diameter, 16in Overall Length, No O2 Sensor - Standard Grade Replacement
  • EPA PRE-OBDII COMPLIANT - This catalytic converter is designed to meet or exceed Federal EPA (Environmental Protection Agency) Pre-OBDII emissions requirements in compliance with legal standards for federally registered vehicles. NOT for use in California or Colorado
  • UPGRADED DESIGN - Using our latest catalytic converter manufacturing technologies, these early vehicle applications benefit from updated flow characteristics and modern construction designs
  • STAINLESS STEEL CONSTRUCTION - The utilization of highly corrosion resistant stainless-steel construction and MagnaFlow’s cutting-edge CNC precision robotic manufacturing techniques ensure consistently perfect fitment, reliable performance and superior longevity
  • 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
  • UNIVERSAL FIT - MagnaFlow recommends professional installation for the universal configuration of this catalytic converter as cutting, fabrication and/or welding may be required. In addition, we suggest contacting the official MagnaFlow Exhaust Products seller account to confirm there’s no issue selecting your vehicle in Amazon’s system to ensure it is the correct fit
SaleNo. 2
Walker 35574 Air Tube Kit
  • Offered in a variety of styles and sizes for your installation needs
  • Constructed from durable and robust material for long life
  • Universal fit for installation flexibility
  • Designed to work seamlessly with OE and Walker aftermarket replacement parts
  • New Walker accessories help to ensure effective exhaust repairs
No. 3
AUTOSAVER88 Catalytic Converter Compatible with 2007-2016 Nissan Altima 2.5L L4 Direct-Fit High Flow Series (EPA Compliant)
  • AUTOSAVER88 direct-fit high flow catalytic converter is designed to meet even exceed OE quality and performance standards without sacrificing flow rate.
  • Features heavy-duty stainless steel construction, internal ceramic substrates and catalyst coating have been carefully engineered for maximum efficiency.
  • Bolt-on connection, flange to flange, direct installing to existing exhaust system without doing extra modification. (Item comes with mounting gasket and hardware).
  • Genuine EPA certification, every catalytic converter body is stamped with exclusive EPA number. Federal EPA standard catalytic converters are backed 5 years or 50,000 miles limited warranty.
  • Vehicle Fitment: Compatible with 2007-2016 Nissan Altima L4 2.5L(QR25DE), please check product description page below for more information.
No. 4
Walker Exhaust Standard EPA 15038 Universal Catalytic Converter
  • EPA COMPLIANT -- For use on pre-OBDII vehicles, 1995 and older. Not legal for sale or use in CA. Legal in NY and ME on all pre-OBD vehicles only. Consult your state's aftermarket converter regulations for details.
  • NO BREAK IN REQUIRED -- Ready to operate with application-specific converter shell design and mat compression, no converter break in required after installation
  • DURABLE -- Features stainless-steel body with aluminized pipe and heat shields for durability
  • FLEXIBLE SOLUTION -- Customizable design features expandable bushings for easy fitment and may require specialized fabrication and/or welding for installation
  • OE-STYLE DESIGN -- Features aluminized heat shields when originally equipped, to match OE design, protecting the undercarriage from heat created by the converter
No. 5
AUTOSAVER88 Catalytic Converter Compatible with 2004-2009 Toyota Prius 1.5L Direct-Fit High Flow Series (EPA Compliant)
  • AUTOSAVER88 direct-fit high flow catalytic converter is designed to meet even exceed OE quality and performance standards without sacrificing flow rate.
  • Features heavy-duty stainless steel construction, internal ceramic substrates and catalyst coating have been carefully engineered for maximum efficiency.
  • Bolt-on connection, flange to flange, direct installing to existing exhaust system without doing extra modification.
  • Genuine EPA certification, every catalytic converter body is stamped with exclusive EPA number. Federal EPA standard catalytic converters are backed 5 years or 50,000 miles limited warranty.
  • Vehicle Fitment: Compatible with 2004 2005 2006 2007 2008 2009 Toyota Prius 1.5L, please check product description page below for more information.
SaleNo. 6
Walker Exhaust 35129 Exhaust Bolt and Spring
  • KEEPS EXHAUST PARTS IN PLACE -- Designed to support undercar exhaust components
  • CONSISTENT PERFORMANCE -- Spring designed with the right compression strength for a secure connection
  • PREMIUM MATERIALS -- Made from high-quality materials for durability and long life
  • THE RIGHT CONNECTION -- Designed to be used for ball and socket joint
  • BETTER TOGETHER -- Use premium Walker accessories when installing Walker catalytic converters and mufflers for a complete exhaust system upgrade
No. 7
AUTOSAVER88 Catalytic Converter Compatible with 1999-2007 Chevy Silverado GMC Sierra 1500 2500, Chevrolet Tahoe/Avalanche Suburban 1500, GMC Yukon/Cadillac Escalade 4.3L 4.8L 5.3L (EPA Compliant)
  • AUTOSAVER88 direct-fit high flow catalytic converter is designed to meet or even exceed OE quality and performance standards without sacrificing flow rate.
  • Features heavy-duty stainless steel outer shell construction for maximum durability. The internal substrates and precious metal loading have been carefully engineered for maximum efficiency and to avoid MIL (Malfunction Indicator Lamp) code issues that are common with lower quality converters.
  • The standard OE specification flanges are designed for easy installation, direct bolts to existing exhaust system without doing extra modification.
  • Genuine federal EPA certification and OBDII compliant, every catalytic converter is stamped with an exclusive EPA number on the shell. Federal EPA certificated catalytic converters are backed 5 years or 50,000 miles limited warranty.
  • Vehicle Fitment: Compatible with 1999-2007 Chevy Silverado 1500 2500 / Tahoe / Avalanche 1500 / Suburban 1500, GMC Sierra 1500 2500 / Yukon, Cadillac Escalade, please check product description page below for more references.
No. 8
DNA Motoring OEM-CONV-001 Factory Style Catalytic Converter Exhaust Y-Pipe Replacement Compatible With 02-05 Escalade Avalanche 1500 4.3 4.8 5.3L
  • OEM Style Replacement Catalytic Converter Exhaust Y-Pipe, Precision-engineered For Long-lasting Performance
  • Made of High Quality Stainless Steel with Computerized Mandrel-Bends for Strength and Durability
  • [*Fitment]: Compatible With Escalade, Avalanche 1500 02-05; Silverado/Sierra 1500 99-05; Silverado/Sierra 2500 99-00; Suburban 1500 / Tahoe / Yukon Xl 00-06; Fits 4.3 4.8 5.3l Engines
  • [*Note]: For Use with Federal Emissions Models; NOT Legal for sale or Use in California, New York, Or Maine Emissions Models
  • [*Reference Part Number]: 50366, 50462, 0795241
SaleNo. 9
MAYASAF 2" Inlet/Outlet Universal Catalytic Converter, with O2 Port & Heat Shield (EPA Compliant)
  • 【High Quality & Flow】Our universal fit catalytic converter is designed to meet even exceed OE quality and performance standards. Made from HD-Stainless steel, high flow design to provide more oxygen for an increase in power and performance, fully tested under the extreme conditions for heat resistance and service life.
  • 【Easy installing】Perfectly matched with the original vehicle, and can be installed easyly to existing exhaust system, cutting and welding may required, professional installation is highly recommended.
  • 【EPA CERTIFIED】Backed in 2 years or 50,000 miles limited warranty, for any manufacturer defect. But not legal for use on vehicles required to meet California emission standards. NOT SHIP TO CA AND NY.
  • 【Vehicle Fitment】Universal for vehicles with 2 inches outer diameter exhaust pipe. Please check product description page below to make sure this item fits your vehicle first.
  • 【Worry-free Aftermarket】Well-packaged and Free shipping by UPS/USPS/Amazon shipping, kindly contact us first if you have any problems, let's make it right!

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Last update on 2021-09-19 at 07:58 / Affiliate links / Images from Amazon Product Advertising API