Best High Flow Catalytic Converter Reviews and Buying Guide

Going through High Flow Catalytic Converter reviews was not an easy task for us while selecting the Best High Flow Catalytic Converter. So many products were there on Amazon’s for this query. We have considered the brand value, price, value for money, sales volume, user reviews and availability while choosing them. You can rely on this list to find the one you are looking for.

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Our Top 20 Best High Flow Catalytic Converter Reviews

Bestseller No. 1
2 pcs 2.5" Universal High Flow Catalytic Converter, Stainless Steel Catalytic Converter 2.5 inch Inlet/Outlet Diameter, 400 Cell (EPA Approved) w/o O2 Port
  • MATERIALS: Our high Flow Catalytic Converter is Made from Stainless steel and Ceramic Substrate , to provide more oxygen for an increase in power and performance, fully tested under the extreme conditions for heat resistance and service life.
  • Compatibility: Universal for vehicles with 2.5 inches outer diameter exhaust pipe. Please check product description page below to make sure this item fits your vehicle first.
  • Easy installing: The complete set high flow converter replaced on the vehicle of left/ right/ front/ rear part. Easy installing. Cutting and Welding may required, professional installation is highly recommended.
  • EPA CERTIFIED: For use on pre-OBDII vehicles, not legal for use on vehicles required to meet California emission standards. NOT SHIP TO CA AND NY.
  • WARRANTY: 1 Year Warranty for any manufacturer defect.
SaleBestseller No. 2
Mophorn Exhaust Manifold 05-11 Nissan Frontier Exhaust Manifold Bolts Gasket Combination 4.0L OEM Quality High Flow Catalytic Converter for 2005-2011 Nissan Frontier/Xterra/Pathfinder(EPA Compliant)
  • OEM High Flow Design: These catalytic converters are constructed to meet or even exceed OEM quality and have EPA certification. The high flow design provides more oxygen to your engine, dramatically improving your exhaust system. Further, an internal honeycomb structure effectively purifies the waste gases, converting CO, HC, and NOx into CO₂, H₂O, and N₂.
  • Stainless Steel Structure: The high flow catalytic converters are assembled with stainless steel bodies for long-term use, capable of enduring high-temper gases from the exhaust. Their internal ceramic substrates contain high-load precious metal catalysts, including Pt, Rh, and Pd, to enhance purification efficiency and intensity.
  • Hassle-Free Installation: Our free-flow catalytic converters have standard specification flanges designed for easy installation. Direct bolts exist in the exhaust system without extra modification. The kit also comes with gaskets and hardware for replacement. Professional installation is highly recommended for exerting its max capability.
  • Standard OBD III Compliant: These high flow converters comply with OBD III Standards, ensuring the exhaust emissions meet the Federal Emission Standards. However, they are illegal to be used in California as the NON-CARB compliance. With these high-quality converters, you have no worry about MIL code issues in your driving.
  • Vehicle Compatibility: The direct-fit catalytic converters are compatible with 2005-2010 Nissan Pathfinder 4.0L, 2005-2014 Nissan Frontier/Xterra 4.0L, 2009-2012 Suzuki Equator 4.0L, 2012 Nissan NV2500/NV3500 4.0L, etc. Please measure the inlet and outlet diameters of the original converters to make sure the items fit your vehicle.
Bestseller No. 3
AUTOSAVER88 ATCC0006 2.5" Inlet/Outlet Universal Catalytic Converter (EPA Compliant)
  • ATTENTION: This item doesn't sell to California and Colorado, please confirm before purchase.
  • FITMENT: Universal fit for vehicles with 2.5-inch outer diameter exhaust pipe while cutting and welding may be required so professional installation is highly recommended.
  • HIGH FLOW & EFFICIENCY: Internal honeycomb ceramic substrates have a porous structure to increase the reaction area, and ensure sufficient catalysts (Pt, Rh, Pd) on the coating surface for a higher conversion rate.
  • DURABILITY: Adopts heavy-duty T409 stainless steel shell that highly resists heat, rust, and corrosion for longer service life, no worry about bending or melting even in extreme conditions.
  • WORRY-FREE PURCHASE: EPA Federal Standard Certificated, all AUTOSAVER88's catalytic converters are stamped with an exclusive EPA number on the shell. AUTOSAVER88 offers a 5-year or 50,000 miles limited warranty, for any manufacturer defect.
Bestseller No. 4
AUTOSAVER88 ATCC0011 [2 Pack] 2.5" Inlet/Outlet Universal Catalytic Converters with O2 Port (EPA Compliant)
  • ATTENTION: This item doesn't sell to California and Colorado, please confirm before purchase.
  • FITMENT: Universal fit for vehicles with 2.5-inch outer diameter exhaust pipe while cutting and welding may be required so professional installation is highly recommended.
  • HIGH FLOW & EFFICIENCY: Internal honeycomb ceramic substrates have a porous structure to increase the reaction area, and ensure sufficient catalysts (Pt, Rh, Pd) on the coating surface for a higher conversion rate.
  • DURABILITY: Adopts heavy-duty T409 stainless steel shell that highly resists heat, rust, and corrosion for longer service life, no worry about bending or melting even in extreme conditions.
  • WORRY-FREE PURCHASE: EPA Federal Standard Certificated, all AUTOSAVER88's catalytic converters are stamped with an exclusive EPA number on the shell. AUTOSAVER88 offers a 5-year or 50,000 miles limited warranty, for any manufacturer defect.
SaleBestseller No. 5
MAYASAF【2 pack】3" Inlet/Outlet Universal Catalytic Converter, High Flow Exhaust Pipe, w/o O2 Port (EPA Compliant), 2 pack
  • 【Attention】 Not ship to states such as California, Colorado, Maine, and New York, etc. due to state emissions regulations. Please consult your state’s aftermarket converter regulations before purchase.
  • 【Vehicle Fitment】Standard 3 inches inside diameter inlet /outlet, 11 inches overall length. Universal fit for vehicles with similar size outer diameter exhaust pipe. Please make sure this item fits your vehicle.
  • 【Easy Installation】Matched with the original vehicle, installed easily to existing exhaust system. May require cutting and/or welding, professional installation is highly recommended.
  • 【DURABLE】Made from Features HD-Stainless steel, high flow design to provide more oxygen to your engine, fully tested under the extreme conditions for service life.
  • 【Worry-free Aftermarket】EPA CERTIFIED, backed in 2 years or 50,000 miles limited warranty, for any manufacturer defect. Kindly let us know if you have any problems, let's make it right!
SaleBestseller No. 6
2-pack 2.5" Universal Catalytic Converter 410250 Three Way High Flow Performance Cat
  • ✓ It is resistant to thermal shock and cracking,long service life.
  • ✓ It is high corrosion and wear resistance.
  • ✓ By using it,it can help to improve exhaust gas velocity, save horsepower and torque.
  • ✓ 2.5" In / Out, 11" Length, 4" Round Mid Diameter
  • ✓ T409 Stainless Steel / Ceramic - 400 Cell Core
Bestseller No. 7
Flowmaster 2000130 Catalytic Converter Univ 200 Srs. Metal H.F. 3.00"
  • High Flow 200 Cell Metallic Substrate
  • Severe-duty/High Temperature
  • Stainless Steel Spun Body
  • Compact Size and Shape
  • Quick and Easy Installation
Bestseller 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
  • Made Of High Quality Stainless Steel With Computerized Mandrel-Bends For Strength And Durability
  • Durable Catalyst Material, Oem Style Replacement
  • 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
  • Country Of Origin : China
Bestseller No. 9
FOMIUZY 2.5 Inch Inlet/Outlet Universal High Flow Front Catalytic Converter Direct-Fit with O2 Port (EPA Compliant)
  • 【Direct Replacement】: If your engine throws P0420 code, or your cat is stolen, then it is recommended to buy this kit to solve the problem. This catalytic converter can repair faults and noise, car exhaust can be purified. It meets or exceeds the oem standard, and has been tested in the factory, perfectly matched with the original car, and can be installed directly.
  • 【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
  • 【Specification】: 2.5" Inlet , 2.5" Outlet , 11" Overall Length.Please check whether your vehicle exhaust has the appropriate size before purchasing to make sure that the standard universal exhaust is suitable for your car
  • 【Standards】: Our catalytic converters have strict production procedures and comply with EPA standards and Obd3 standards. However, due to the increased emission standards in California, Colorado, New York, and Maine, no sales were carried out in these states (friends in these states, please rest assured, we are developing)
  • 【Buy With Confidence】:Our catalytic converter tube pipe assembly has a lifetime warranty. If the part fails or breaks, please contact us for replacement. Save hundreds of dollars off of dealer prices by purchasing this part and taking advantage of our warranty.Price concessions and guaranteed, no need to worry about quality problems
Bestseller No. 10
BoardRoad Catalytic Converter Stainless Steel High Flow For 09-17 Chevrolet Traverse/08-17 Buick Enclave/07-17 GMC Acadia/07-10 Saturn Outlook (EPA Certification)
  • ✅Fitment】:Fit For Buick Enclave 3.6L 6 Cylinder 2008-2017. Fit For Chevrolet Traverse 3.6L 6 Cylinder 2009-2017. Fit For GMC Acadia 3.6L 6 Cylinder 2007-2017. Fit For Saturn Outlook 3.6L 6 Cylinder 2007-2010.
  • ✅【Material】:The ceramic carrier completely fills the inside of the interior of metal shell. The ceramic carrier is honeycomb, hollow , and coated with Rare Earth Stablizers metals. The hollow carrier is to help the gas flow.
  • ✅【Features】:The ceramic hollow interior is coated with CeO2Rare earth stablizers metals, the ratio is up to standard, after full testing under extreme conditions,the heat resistance has been greatly improved and the service life has been fully extended.
  • ✅【High flow design】:High flow design retains maximum engine output and maximizes catalytic efficiency.To provide more oxygen to your engine for an increase in power and performance.
  • ✅【Perfect Fit】:We use the original car mold to produce the catalytic converter. Built to match the original car, Not a generic model. Highly fit , perfect in workmanship.
Bestseller No. 11
MAYASAF 【2 PACK】 2.5" Inlet/Outlet Universal Catalytic Converter, with O2 Port【EPA Compliant】
  • 【Vehicle Fitment】Standard 2.5 inches inside diameter inlet /outlet, 11 inches overall length. Universal fit for vehicles with similar size outer diameter exhaust pipe. Please make sure this item fits your vehicle.
  • 【DURABLE】Made from Features HD-Stainless steel, high flow design to provide more oxygen to your engine, fully tested under the extreme conditions for service life.
  • 【Easy Installation】Matched with the original vehicle, installed easily to existing exhaust system. May require cutting and/or welding, professional installation is highly recommended.
  • 【EPA CERTIFIED but Non-compliant with CARB】Backed in 2 years or 50,000 miles limited warranty, for any manufacturer defect. But the listed product has not been registered with CARB nor received an EO number. It is prohibited from sale in states which have adopted California's vehicle emission standards, such as California. Consult your state’s aftermarket converter regulations.
  • 【Worry-free Aftermarket】Well-packaged and Free shipping, kindly contact us first if you have any problems, let's make it right!
Bestseller No. 12
Mophorn Catalytic Converter, 3 Pcs Exhaust Pipe Stainless Steel High Flow Cat, for Chevrolet Traverse 09-17 3.6L V6/Buick Enclave 07-10/GMC Acadia 07-17/Saturn Outlook 3.6L 07-10 (EPA Compliant)
  • OEM High Flow Design: These catalytic converters are constructed to meet or even exceed OEM quality and have EPA certification. The high flow design provides more oxygen to your engine, dramatically improving your exhaust system. Further, an internal honeycomb structure effectively purifies the waste gases, converting CO, HC, and NOx into CO₂, H₂O, and N₂.
  • Stainless Steel Structure: The high flow catalytic converters are assembled with stainless steel bodies for long-term use, capable of enduring high-temper gases from the exhaust. Their internal ceramic substrates contain high-load precious metal catalysts, including Pt, Rh, and Pd, to enhance purification efficiency and intensity.
  • Hassle-Free Installation: Our free-flow catalytic converters have standard specification flanges designed for easy installation. Direct bolts exist in the exhaust system without extra modification. The kit also comes with gaskets and hardware for replacement. Professional installation is highly recommended for exerting its max capability.
  • Standard OBD III Compliant: These high flow converters comply with OBD III Standards, ensuring the exhaust emissions meet the Federal Emission Standards. However, they are illegal to be used in California as the NON-CARB compliance. With these high-quality converters, you have no worry about MIL code issues in your driving.
  • Vehicle Compatibility: The direct-fit catalytic converters are compatible with 2007-2010 Saturn Outlook 3.6L, 2007-2017 GMC Acadia 3.6L, 2008-2017 Buick Enclave 3.6L, and 2009-2017 Chevrolet Traverse 3.6L. Please measure the inlet and outlet diameters of the original converters to make sure the items fit your vehicle.
Bestseller No. 13
MAYASAF 2.5" Inlet/Outlet Universal Catalytic Converter, with O2 Port (EPA Compliant)
  • 【Attention】 Not ship to states such as California, Colorado, Maine, and New York, etc. due to state emissions regulations. Please consult your state’s aftermarket converter regulations before purchase.
  • 【Vehicle Fitment】Standard 2.5 inches inside diameter inlet /outlet, 11 inches overall length. Universal fit for vehicles with similar size outer diameter exhaust pipe. Please make sure this item fits your vehicle.
  • 【Easy Installation】Perfectly matched with the original vehicle, installed easily to existing exhaust system. Cutting and welding maybe required, professional installation is highly recommended.
  • 【DURABLE】Made from Features HD-Stainless steel, high flow design to provide more oxygen to your engine, fully tested under the extreme conditions for service life.
  • 【Worry-free Aftermarket】EPA CERTIFIED, backed in 2 years or 50,000 miles limited warranty, for any manufacturer defect. Kindly let us know if you have any problems, let's make it right!
SaleBestseller No. 14
BONILORA Universal 2.25" Catalytic Converter High Flow T409 Stainless Steel 53004
  • Condition: Brand New & High Quality Universal Catalytic Converter, 100% Tested before shipping to ensure product safety, stability and durability.
  • Part Number: 53005;53004 . Please check the part number before purchasing to ensure fitment.
  • Compatible with: EPA Approved 2.25" Inlet/Outlet Universal
  • It is high corrosion and wear resistance.resistant to thermal shock and cracking,long service life.
  • Easy to install, just Plug-and-play, Direct replace your vehicle’s original factory component.We provide 100% perfect customer service,Any questions please sent email to us.
Bestseller No. 15
AUTOSAVER88 ATCC0010 3" Inlet/Outlet Universal Fit Catalytic Converter (EPA Compliant)
  • ATTENTION: This item doesn't ship to California and Colorado, please confirm before purchase.
  • FITMENT: Universal fit for vehicles with 3-inch outer diameter exhaust pipe while cutting and welding may be required so professional installation is highly recommended.
  • HIGH EFFICIENCY: Internal honeycomb ceramic substrates have a porous structure to increase the reaction area, and ensure sufficient catalysts (Pt, Rh, Pd) on the coating surface for a higher conversion rate.
  • DURABILITY: Adopts heavy-duty T409 stainless steel shell that highly resists heat, rust, and corrosion for longer service life, no worry about bending or melting even in extreme conditions.
  • WORRY-FREE PURCHASE: EPA Federal Standard Certificated, all AUTOSAVER88's catalytic converters are stamped with an exclusive EPA number on the shell. AUTOSAVER88 offers a 5-year or 50,000 miles limited warranty, for any manufacturer defect.
Bestseller No. 16
Catalytic Converter Compatible with Honda CRV 2.4L 2007 2008 2009 High Flow Cat Convertor Direct-Fit
  • 【Catalytic Converter】Honeycomb metal catalysis more efficient.
  • 【Direct Replacement】Catylact convertor is OE-style easy to install without any modifications,compatible with Honda CR-V 2.4L 07 08 09.Please check whether the model is suitable before ordering.
  • 【ATTENTION】This item doesn't ship to California and Colorado, please confirm before purchase.
  • 【Durable】Cat made from stainless steel,tested in extreme environments to ensure longer product life.
  • 【Warranty】The cat converter exhaust pipe comes complete with 5 years or 50,000 miles limited warranty.If there is any problem,please contact us to solve the problem for you immediately.
Bestseller No. 17
BoardRoad Catalytic Converter with Gasket Exhaust Flex Y-Pipe High Flow Series Fit for 2003-2007 Nissan Murano 3.5L Direct-Fit (EPA Compliant)
  • ✅【High Standard】:This Manifold Catalytic Converter meets EPA standard. Fit for 2003-2007 Nissan Murano 3.5L Direct-Fit.
  • ✅【Material】:The ceramic carrier completely fills the inside of the interior of metal shell. The ceramic carrier is honeycomb, hollow , and coated with Rare Earth Stablizers metals. The hollow carrier is to help the gas flow.
  • ✅【Features】:The ceramic hollow interior is coated with CeO2Rare earth stablizers metals, the ratio is up to standard, after full testing under extreme conditions,the heat resistance has been greatly improved and the service life has been fully extended.
  • ✅【High Flow Design】:High flow design retains maximum engine output and maximizes catalytic efficiency.To provide more oxygen to your engine for an increase in power and performance.
  • ✅【Perfect Fit】:We use the original car mold to produce the catalytic converter. Built to match the original car, Not a generic model. Highly fit , perfect in workmanship.
Bestseller No. 18
MAYASAF【4 PACK】Catalytic Converter Fit for Toyota Prius 1.5L L4 2004 05 06 07 08 09, High Flow Converter (EPA Compliant)
  • 【Attention】 Not ship to states such as California, Colorado, Maine, and New York, etc. due to state emissions regulations. Please consult your state’s aftermarket converter regulations before purchase.
  • 【Vehicle Fitment】for Toyota Prius 1.5L L4 2004 2005 2006 2007 2008 2009.. Please make sure this item fits your vehicle.
  • 【Direct Replacement】Matched with the original vehicle, installed easily to existing exhaust system without doing extra modification, professional installation is highly recommended.
  • 【DURABLE】Made from Features HD-Stainless steel, internal structure is carefully designed to provide more oxygen to your engine, fully tested under the extreme conditions for service life.
  • 【Worry-free Aftermarket】EPA CERTIFIED, backed in 2 years or 50,000 miles limited warranty, for any manufacturer defect. Kindly let us know if you have any problems, let's make it right!
Bestseller No. 19
BONILORA 2.5 inch Universal Catalytic Converter Stainless Steel High Flow Performance Cat 410250
  • Condition: Brand New & High Quality Catalytic Converter, 100% Tested before shipping to ensure product safety, stability and durability.
  • Part Number: 410250. Please check the part number before purchasing to ensure fitment.
  • Compatible with: Universal 2.5" Inch Inlet Fit Catalytic Converter
  • EPA Certification,High corrosion and wear resistance.,Great emissions control,high efficient and work efficiently.
  • Easy to install, just Plug-and-play, Direct replace your vehicle’s original factory component.We provide 100% perfect customer service,Any questions please sent email to us.
Bestseller No. 20
AUTOSAVER88 Catalytic Converter Compatible with 2006-2012 Subaru Forester, Impreza, Legacy, Outback / 2006 Saab 9-2X 2.5L Direct-Fit High Flow Series (EPA Compliant)
  • ATTENTION: This item doesn't ship to California and Colorado, please confirm before purchase.
  • VEHICLE FITMENT: Compatible with 2006-2010 Subaru Forester, 2006-2011 Subaru Impreza, 2006-2012 Subaru Legacy, 2006-2012 Subaru Outback and 2006 Saab 9-2X 2.5L, please check the product description page below for details.
  • DIRECT FIT DESIGN: Adopted the advanced laser-cutting tech, the flange is designed to meet standard OE specifications without extra modification, and all installation holes are firmly and exactly fixed with attached gaskets and hardware.
  • HIGHER EFFICIENCY & QUALITY: Internal ceramic substrates contain ample metal catalysts and offer a larger surface area to fully react; Adopts heavy-duty T409 stainless steel shell that highly resists heat, rust, and corrosion for longer service life, no worry about bending or melting.
  • EPA CERTIFIED: EPA Federal Standard Certificated, all AUTOSAVER88's catalytic converters are stamped with an exclusive EPA number on the shell.AUTOSAVER88 offers a 5-year or 50,000 miles limited warranty, for any manufacturer defect.(NOTE: Professional installation would be highly recommended)

Thing to Consider Before Buying

Before purchasing anything, you should definitely check out a buying guide. It will let you know what things you have to see or consider when you are doing shopping. The guide below will help you to get the High Flow Catalytic Converter.

Brand and Quality

Before anything else, you should factor in the quality of the products. important matter a brand boasts about the performance of the product because they know about their product quality. a reputed brand provides the best quality products. So, we always ensure before listing a product’s brand and quality.

Apart from the quality, you need to consider the size of the products. when customers think to purchase a product, they are thinking of the perfect size as needed. before we list, we ensure the best size of any kind of product. We want customers to select the right product without panic. That’s why we make these reviews to help customers.

As a result, you will not have to wait for long to time for choosing the best products.

Last, of all, we are collecting all of the information from Amazon. Amazon is the most-trusted place for this. Because Amazon is the number one best e-commerce in the world.

We have one more helping hand for making this list. this is the Ai system. AI is helping us for saving time, still, we are human beings working behind the scene to ensure satisfaction for our readers. The products aren’t picked randomly. We are researching hugely and then making the best product list with the following perfect criteria. So, you can purchase it with trust. Thank you.

Conclusion

When you’re looking for a new High Flow Catalytic Converter, it’s important to consider both cost and convenience. The best High Flow Catalytic Converter will be one that is comfortable and easy to use. Finally, we make sure the High Flow Catalytic Converter is made from high-quality materials so you use it and are happy.

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