10 bestCatalytic Converter Testsof February 2025
112M consumers helped this year.
1
Yeoflagtrade Catalytic Converter 2.5 Inch 1 Pcs, High Flow Universal Catalytic Convert Inlet Outlet 2.5 In, Direct-Fit Catalytic Convertor with O2 Port (EPA Compliant)
Yeoflagtrade
9.9
2
FOMIUZY High Flow Front Catalytic Converter Kit Direct-Fit Honda Accord 2003 2004 2005 2006 2007 2.4L
FOMIUZY
9.8
3
FOMIUZY 2.25 Inch 2.25" Inlet/Outlet Catalytic Converter Universal High Flow Front Cat Convertor Direct-Fit with O2 Port & Heat Shield(EPA Compliant)
FOMIUZY
9.6
4
FOMIUZY 3 Inch Inlet/Outlet Universal High Flow Front Catalytic Converter Direct-Fit(EPA Compliant)
FOMIUZY
9.4
5
Nitrox Catalytic Converter Petrol Cleaner, 17 Fl Oz
Nitrox
9.2
Other
STP 1 Tank Tune Up Fuel Additive Fuel System Cleaner and Exhaust System Cleaner, Cleans Fuel Injectors, Intake Valves, Cylinder Head and Piston Tops, 12 Fl Oz
Osakesukar 2.25" Universal Catalytic Converter 2.25" Inch Inlet/Outlet 2 Pack High Flow Catalytic Converter with Heat Shield and O2 Port
TYRAREX Exhaust Back Pressure Gauge Catalytic Converter Tester Kit with M12 M18 Adapter for Automotive Exhaust System
WaSaett 3" Catalytic Converter Universal Cat Converter with O2 Port and Heat Shield,designed for vehicles made before October 1996 (EPA Compliant)
6
FOMIUZY Universal Catalytic Converter Security Protector Cat Clamp Shield Stainless Steel Plate Cat Strap Cover Cat Rap Device For Anti Theft Replace PL9800
FOMIUZY
9.1
7
Osakesukar 3" Universal Catalytic Converter 3 Inch Inlet/Outlet High Flow Catalytic Converter with Heat Shield and O2 Port (3")
Osakesukar
8.9
8
Maureen High Flow Front Catalytic Converter Kit Direct-Fit Toyota Prius 2004 2005 2006 2007 2008 2009 1.5L Replace 16337(EPA Compliant)
Maureen
8.7
9
Magnaflow 94006 Universal Catalytic Converter (Non CARB compliant)
MagnaFlow Exhaust Products
8.5
10
FOMIUZY 2 Inch 2" Inlet/Outlet Catalytic Converter Universal High Flow Front Cat Convertor Direct-Fit with O2 Port & Heat Shield(EPA Compliant)
FOMIUZY
8.2
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