10 Best High Flow Catalytic Converter of December 2025

• AUTOSAVER88 brand new universal fit catalytic converter is designed to meet or 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.
• Standard 2.5" inside diameter inlet/outlet, 11" overall length, universal for vehicles with 2.5 inches outer diameter exhaust pipe.
• 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.
• Non CARB compliant ( illegal for use in California ), OBD II compliant ( for 1996 and newer vehicles ); Installing may require cutting and welding, please consider professional operation.

AUTOSAVER88

• AUTOSAVER88 brand new universal fit catalytic converter is designed to meet or 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.
• Standard 2.25" inside diameter inlet/outlet, 11" overall length, universal for vehicles with 2.25 inches outer diameter exhaust pipe.
• 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.
• Non CARB compliant ( illegal for use in California ), OBD II compliant ( for 1996 and newer vehicles ); Installing may require cutting and welding, please consider professional operation.

AUTOSAVER88

• AUTOSAVER88 brand new universal fit catalytic converter is designed to meet or 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.
• Standard 3" inside diameter inlet/outlet, 11" overall length, universal for vehicles with 3.0 inches outer diameter exhaust pipe.
• 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.
• Non CARB compliant ( illegal for use in California ), OBD II compliant ( for 1996 and newer vehicles ); Installing may require cutting and welding, please consider professional operation.

AUTOSAVER88

Stainless Bros

• 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

Flowmaster

• 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

Flowmaster

• Engine Limit: 5.9L / Test Weight: 6000 Lbs.
• Ideal for use on vehicles prior to 1998 Vehicles after 1998 that require an O2 Port
• Part Number: 410250 / Inlet: 2.5" / Outlet: 2.5" / Overall Length: 11"
• Model: Universal Converter & Material: T409 Stainless Steel & Substrate: Ceramic - 400 cell
• Professional installation is highly recommended (No Instruction Included)

Tuningswolrd

• NEW GENERATION SPUN FORMED CONVERTER: Made of one piece of polished stainless steel, our products have zero leakage and fit tight applications
• PRODUCT SPECIFICATIONS: 2 & 3 Way 5.9L / 6,000 lbs
• UNIVERSAL: Designed to cover a wide variety of vehicle makes and models
• PRODUCT DIMENSIONS: 4" Round, 11" Long, 3" Inlet/Outlet
• OBDII Compliant: Excluding California

Thunderbolt

• AUTOSAVER88 brand new universal fit catalytic converter is designed to meet or 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.
• Standard 2.5" inside diameter inlet/outlet, 11" overall length, universal for vehicles with 2.5 inches outer diameter exhaust pipe.
• 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.
• Non CARB compliant ( illegal for use in California ), OBD II compliant ( for 1996 and newer vehicles ); Installing may require cutting and welding, please consider professional operation.

AUTOSAVER88

• AUTOSAVER88 brand new universal fit catalytic converter is designed to meet or 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.
• Standard 2.25" inside diameter inlet/outlet, 13" overall length, universal for vehicles with 2.25 inches outer diameter exhaust pipe.
• 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.
• Non CARB compliant ( illegal for use in California ), OBD II compliant ( for 1996 and newer vehicles ); Installing may require cutting and welding, please consider professional operation.

AUTOSAVER88