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Cheap Best High Flow Catalytic Converters 2020 Reviews
A vehicle’s stock catalytic converter (“cat” for short) is restrictive in terms of performance. Designed to reduce the amount of toxic gasses emitted into the atmosphere, the catalytic converter tends to stifle performance. High Flow Test Pipes decrease backpressure from the exhaust and get rid of the pesky stock cat, thereby improving a vehicle’s performance. They are relatively inexpensive and are well worth the purchase, especially if you have a vehicle that’s known to run a bit rough, such as an older Honda Accord.
Table of Contents
- Top Best Sellers in High Flow Catalytic Converters
- 10. SLP M31040 High Flow Catalytic Converter (Pair)
- 9. Acura Integra GS-R Racing Stainless Steel High Flow Catalytic CAT Converter Test Pipe Racing JDM
- 8. 2.5″ Universal Spun Catalytic Converter High Flow Stainless Steel (Pair)
- 7. Yonaka Universal 2.5″ High Flow Performance Ceramic Core Catalytic Converter
- 6. Honda Accord Performance Exhaust High-Flow Cat Test Pipe
- 5. MagnaFlow 59959 Universal Catalytic Converter
- 4. 2.5″ Inlet/Outlet Universal Catalytic Converter 410250 Series Direct Fit Converter High Flow Stainless Steel
- 3. MagnaFlow 94006 Universal Catalytic Converter
- 2. Flowmaster 2230125 223 Series 2.5″ Inlet/Outlet Universal Catalytic Converter
- 1. Honda Civic Ex Dx Lx High Flow Catalytic Converter Test Pipe
- What to Look for When Buying High Flow Catalytic Converter
Top Best Sellers in High Flow Catalytic Converters
| Preview | Title | Price | |
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$199.95 |
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$99.00 |
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$69.00 |
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$90.02 |
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$46.99 |
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$38.57 |
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$62.10 |
10. SLP M31040 High Flow Catalytic Converter (Pair)
These replacement high-flow catalytic converters are designed to enhance the C6 Corvette’s exhaust system performance. They’re sold as a pair and have a limited lifetime warranty. They cannot be equipped to pollution-controlled vehicles or sold in California.
The SLP M31040 converters each weigh 9 pounds and are designed for off-road use only with non-stock SLP headers. They are 12 inches long and have a 2-1/2-inch inlet/outlet. Required downpipes, PowerFlo-X Crossover Assembly, header installation kit, and SLP headers are sold separately.
Pros:
- Cost-effective set of two
- Made of durable stainless steel
Cons:
- Only compatible with C6 Corvettes
- Must purchase other components separately
9. Acura Integra GS-R Racing Stainless Steel High Flow Catalytic CAT Converter Test Pipe Racing JDM
This frontally-placed catalytic converter is manufactured for 1994-2001 Acura Integra models. It comes brand-new and increases horsepower and torque by about 10. It uses the factory O2 sensor position.
This 4.9-lb, 16.5-inch long catalytic converter has a 2.5-inch inlet/2.75-inch outlet and two O2 sensor holes.
Pros:
- Can be bolted on without modification
- Very cost-effective
Cons:
- Compatible with only GS-R models
8. 2.5″ Universal Spun Catalytic Converter High Flow Stainless Steel (Pair)
This stainless steel catalytic converter can be fit onto tight applications and is OBDII Compliant but does not comply with California’s stringent emission regulations. It has a spun design and will not emit any leakage.
This catalytic converter has a 2.5-inch inlet/outlet diameter, an overall length of 11 inches, and is 4 inches in body length. It is a 400 CPI ceramic brick for up to 5.9-liter engines.
Pros:
- Increases horsepower by 5-10
- Has a great tone to it
- Works on many vehicles
Cons:
- Not for sale in California
7. Yonaka Universal 2.5″ High Flow Performance Ceramic Core Catalytic Converter
The Yonaka catalytic converter is crafted from high-quality stainless steel and has its own heat shield. This piece can be easily installed on most vehicles since it is a universal OEM style.
This catalytic converter features a honeycomb structure inside its ceramic monolith core, weighs just 4 pounds, and is corrosion resistant. Its inlet/outlet diameter is 2.5 inches and has a total length of 13.75 inches.
Pros:
- Tones out rough exhaust
- Doesn’t corrode easily
Cons:
- Welded flanges might break due to weather conditions or a high flow exhaust manifold
6. Honda Accord Performance Exhaust High-Flow Cat Test Pipe
This cat test pipe includes a metal gasket and works to increase performance and high air flow. It adds an impressive 10-15 horsepower.
Crafted from top-notch T304 polished stainless steel, this cat test pipe has a 2.25-inch inlet/outlet size.
Pros:
- Includes all necessary items
- Made of high-quality materials
Cons:
- Only compatible with 1994-1997 Honda Accord
5. MagnaFlow 59959 Universal Catalytic Converter
This stainless steel cat is compliant with federal emissions regulations. It is crafted for both diesel and gas configurations.
The MagnaFlow 59959 has a seam that’s welded close to the converter’s body, which gives it a tight bond. It is lightweight at 2.7 pounds and has a 3-inch inlet/outlet dimension.
Pros:
- Easy for a mechanic to weld on
- Significantly decreases gas smell
Cons:
- Will not fit onto every car
- Not compliant with California’s emissions laws
4. 2.5″ Inlet/Outlet Universal Catalytic Converter 410250 Series Direct Fit Converter High Flow Stainless Steel
This three-way cat cleans up polluting gasses and is crafted from high-quality T409 stainless steel. This enhances the fuel conversion rate and reduces corrosion.
This cat is an ECO II that is 11 inches in total length and has a 2.5″ inlet/outlet diameter. It is universally applicable to engines up to 5.9 liters.
Pros:
- Welded together well
- Helps vehicles regain a lot of power
Cons:
- Makes exhaust too quiet for some drivers
3. MagnaFlow 94006 Universal Catalytic Converter
The MadnaFlow 94006 is made for gas and diesel emissions and is crafted of high-quality stainless steel. It is universal and will work with most family-size vehicles.
The seam is welded close to the body for a tight fit, and it is compliant with federal emissions legislation in all states but California.
Pros:
- Significantly cuts emissions on older vehicles
- Increases engine performance
Cons:
- Might not fit 1995 and 1996 Chevy Blazers and other makes/models
2. Flowmaster 2230125 223 Series 2.5″ Inlet/Outlet Universal Catalytic Converter
The Flowmaster 2230125 223 Series will keep your “MIL” light off and generates excellent flow. It has a number of applications and is made from high-quality T409 stainless steel.
This small cat is only 2.2 pounds. It has a full manufacturer’s warranty and will fit an exhaust that is sized at 2.5 inches before and after the cat.
Pros:
- Wil fit most vehicles
- Gives a big power boost
Cons:
- Customers have received cheap knockoffs instead of the Flowmaster when ordered online
1. Honda Civic Ex Dx Lx High Flow Catalytic Converter Test Pipe
This cat test pipe is manufactured only for the 1988-2000 Honda Civic EX, DX, and LX trims, the 1993-1997 Honda Del Sol, and the 1988-1991 Honda CRX. It comes with a 90-day limited warranty.
The Honda Civic cat test pipe gives instant power gain since it is an ultra high flow cat. It is crafted with T304 stainless steel and is extremely lightweight.
Pros:
- Easy to install
- Doesn’t need modifications
- Very cost-effective
Cons:
- Doesn’t come with installation instructions
- Might make exhaust noisier
What to Look for When Buying High Flow Catalytic Converter
When you’re looking for a high flow cat, make sure you are buying a universal or model-specific cat that fits. Always check measurements and specs before making a purchase. Once you’ve bought one, you will either need to use your own tools to do it yourself or (especially if it’s a universal cat) have a mechanic install it for you.
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