13 Best Automotive Performance Catalytic Converters

List Updated January 2020

Bestselling Automotive Performance Catalytic Converters in 2020


Flowmaster 2230130 223 Series 3" Inlet/Outlet Universal Catalytic Converter

Flowmaster 2230130 223 Series 3
BESTSELLER NO. 1 in 2020
  • Excellent flow characteristics
  • Engineered to keep the "MIL" light off
  • Available for a wide variety of applications
  • Stainless steel construction
  • This item is not for sale in California/Non CARB compliant

MagnaFlow 99006HM Universal Catalytic Converter (Non CARB Compliant)

MagnaFlow 99006HM Universal Catalytic Converter (Non CARB Compliant)
BESTSELLER NO. 2 in 2020
  • Stainless steel construction
  • Federal emissions compliant design
  • Formulated for gas and diesel applications
  • Seam welded close to the converter body for a strong, tight bond
  • Made in U.S.A.
  • Catalytic Converter Inlet Diameter - 2.5 Inches / Main Piping Diameter - 2.5 Inches

MagnaFlow 23328 Direct Fit Catalytic Converter (Non CARB compliant)

MagnaFlow 23328 Direct Fit Catalytic Converter (Non CARB compliant)
BESTSELLER NO. 3 in 2020
  • Stainless steel construction
  • Federal emissions compliant design
  • Formulated for gas and diesel applications
  • Seam welded close to the converter body for a strong, tight bond
  • Made in U.S.A.

MagnaFlow 23405 Direct Fit Catalytic Converter (Non CARB compliant)

MagnaFlow 23405 Direct Fit Catalytic Converter (Non CARB compliant)
BESTSELLER NO. 4 in 2020
  • Stainless steel construction
  • Federal emissions compliant design
  • Formulated for gas and diesel applications
  • Seam welded close to the converter body for a strong, tight bond
  • Made in U.S.A.

Flowmaster 2230125 223 Series 2.5" Inlet/Outlet Universal Catalytic Converter

Flowmaster 2230125 223 Series 2.5
BESTSELLER NO. 5 in 2020
  • Excellent flow characteristics
  • Engineered to keep the "MIL" light off
  • Available for a wide variety of applications
  • Stainless steel construction
  • This item is not for sale in California/Non CARB compliant

2" Inlet/Outlet Catalytic Converter with O2 Nut Universal Fit Stainless Steel High Flow Converter (EPA Compliant)

2
BESTSELLER NO. 6 in 2020
  • This brand new high flow catalytic converter is designed to meet or even exceed OE quality and performance standards without sacrificing flow rate.
  • Standard 2 inches inlet/outlet inside diameter, 13 inches overall length, universal fit for vehicles with 2 inches OD exhaust pipe (Click on pictures for measure guide).
  • The heavy-duty stainless steel shell can withstand high temperatures from the exhaust, the high load noble metal catalyst in ceramic substrates for reliable performance.
  • Genuine federal EPA certification and OBDII compliant, every catalytic converter is stamped with an exclusive EPA number on the shell.
  • Engine Limit: 3.0L; Warranty: 5 years or 50,000 miles; Installation: Cutting and welding may be required, please consider professional installation.

MagnaFlow 91005 Universal Catalytic Converter (Non CARB Compliant)

MagnaFlow 91005 Universal Catalytic Converter (Non CARB Compliant)
BESTSELLER NO. 7 in 2020
  • Stainless steel construction
  • Federal emissions compliant design
  • Formulated for gas and diesel applications
  • Seam welded close to the converter body for a strong, tight bond
  • Made in U.S.A.

Flowmaster 2820125 282 Series 2.5" Universal OBDII Catalytic Converter

Flowmaster 2820125 282 Series 2.5
BESTSELLER NO. 8 in 2020
  • Excellent flow characteristics
  • Engineered to keep the "MIL" light off
  • Available for a wide variety of applications
  • Stainless steel construction
  • This item is not for sale in California/Non CARB compliant

MagnaFlow 99205HM Universal Catalytic Converter (Non CARB Compliant)

MagnaFlow 99205HM Universal Catalytic Converter (Non CARB Compliant)
BESTSELLER NO. 9 in 2020
  • Stainless steel construction
  • Federal emissions compliant design
  • Formulated for gas and diesel applications
  • Seam welded close to the converter body for a strong, tight bond
  • Made in U.S.A.

MagnaFlow 99306HM Universal Catalytic Converter (Non CARB Compliant)

MagnaFlow 99306HM Universal Catalytic Converter (Non CARB Compliant)
BESTSELLER NO. 10 in 2020
  • Stainless steel construction
  • Federal emissions compliant design
  • Formulated for gas and diesel applications
  • Seam welded close to the converter body for a strong, tight bond
  • Made in U.S.A.

MagnaFlow 50223 Direct Fit Catalytic Converter (Non CARB compliant)

MagnaFlow 50223 Direct Fit Catalytic Converter (Non CARB compliant)
BESTSELLER NO. 11 in 2020
  • Stainless steel construction
  • Federal emissions compliant design
  • Formulated for gas and diesel applications
  • Seam welded close to the converter body for a strong, tight bond
  • Made in U.S.A.

Flowmaster 2220120 222 Series 2" Inlet/Outlet Universal Catalytic Converter

Flowmaster 2220120 222 Series 2
BESTSELLER NO. 12 in 2020
  • Excellent flow characteristics
  • Engineered to keep the "MIL" light off
  • Available for a wide variety of applications
  • Stainless steel construction
  • This item is not for sale in California/Non CARB compliant

Catalytic Converter for 07-13 Nissan Altima 2.5L - Direct Fit Stainless Steel High Flow Cat w/Exhaust Manifold (EPA Compliant)

Catalytic Converter for 07-13 Nissan Altima 2.5L - Direct Fit Stainless Steel High Flow Cat w/Exhaust Manifold (EPA Compliant)
BESTSELLER NO. 13 in 2020
  • 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 exact OE specification routing and flanges are designed for easy installation, direct bolts to existing exhaust system without extra modification (comes with gasket and hardware).
  • Genuine federal EPA certification and OBD-II compliant, every catalytic converter is stamped with an exclusive EPA number on the shell.
  • Warranty: 5 years / 50,000 miles; Fitment: 2007 2008 2009 2010 2012 2013 Nissan Altima 2.5L, please refer to product description page below for more details.

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