Your cart is empty.
Your cart is empty.Product Description
EPA COMPLIANT
Fitment:
- 2001-2005 Civic DX 1.7L
- 2001-2005 Civic GX 1.7L
- 2001-2005 Civic HX 1.7L
- 2001-2005 Civic LX 1.7L
- 2004 2005 Civic Value Package 1.7L
- Not legal for sale or use in California and Colorado
- Consult your state’s aftermarket converter regulations for details
Honda Civic Direct Fit Three-way Catalytic Converter
How Do Three-way Catalytic Converters Work?
A three-way catalytic converter has three simultaneous tasks:
- Reduction of nitrogen oxides to nitrogen and oxygen: 2NOx → xO2 + N2
- Oxidation of carbon monoxide to carbon dioxide: 2CO + O2 → 2CO2
- Oxidation of unburnt hydrocarbons (HC) to carbon dioxide and water: CxH2x+2 + [(3x+1)/2]O2 → xCO2 + (x+1)H2O.
Nilight's Direct Fit Converters are engineered to meet your vehicle’s specific emissions requirements and most Come With the Replacement Gaskets at NO Additional Cost!
Catalytic Converters are designed to last the life of your vehicle. It is important to fix the source of the problem before replacing your OEM converter.There are three major reasons a converter fails
OVERHEATED / MELTED
Often caused by unburned fuel entering the converter from a faulty:
- Spark Plug
- Exhaust Valve
- Oxygen Sensor
- Fuel Injector
CATALYST POISONING
Often caused by exposure to emissions substances from:
- Leaky Cylinder Head Gasket
- Silicone-Based Sealant
- Improper Fuel (E85, Diesel)
- Worn Piston Ring / Valve Seal
STRUCTURAL DAMAGE
Often caused by road debris, corrosion or other conditions such as:
- Air Gap Pipe Failure
- Flex Pipe Failure
- Stripped O2 Sensor Threads
- Broken Hangers
Material Selection and Manufacturing Process
Sturdy and Durable
All T409 stainless steel raw materials are rigorously tested to work at high temperatures as well as to effectively prevent rusting.
High Flow Cat
Fully filling the honeycomb and covering more metal Pt/Pd/Rh per unit area can effectively improve the conversion rate.
Direct-Fit
Fully automated manufacturing, machine cutting, machine bending, machine welding etc. effectively reducing human error, ensuring compatibility and quality at the same time.
Breathe Freely and Healthily
Engineered to meet your vehicle’s specific emissions requirements, never worry about P0420 or P0430 code and keep check engine light off.
Christopher Suarez
Reviewed in the United States on March 29, 2025
Good.compatible
Chandra Chakraverty
Reviewed in the United States on February 25, 2025
If you have a check engine light, do the following. Check your gas cap make sure it's tight. Don't waste money on fuel cleaners. Inspect your catalytic converter, especially around the back of it. I missed a crack at the back of the catalytic converter. Ended up buying new oxygen sensors and wasting money on fuel cleaners when I should have inspected the catalytic converter thoroughly. Pls learn from my mistake. Typically after market converters last a few years. Their biggest problems is they may have poor welds which can crack. My previous cat was aftermarket and the welds separated in the back after a few years of use.
Hotroddin1971
Reviewed in the United States on July 31, 2024
So far totally impressed with the quality for the price. Check engine light out and didn't have to spend 3x more! Good part shipped fast.
Eudo M.
Reviewed in the United States on May 12, 2024
Le mande a cambiar esta pieza a mi honda y resulta que el empaque es de muy mala calidad no sella bien ! Compralo el repuesto pero asegurate de comprar por aparte el empaque metalico y tambien note que se metia un olor feo adentro del carro ! Debido al empaque luego de dos meses asi se vio me toco pagar doble mano de obra a mecánico por eso doy las 3 estrellas ! … ahy les dejo otra foto de como se debe de ver el que de verdad trabaja bien … pieza buena pero empaque de muy mala calidad ! Es un peligro hasta para tus pulmones !
Zounder
Reviewed in the United States on March 13, 2024
Installed perfect. Just as good as stock.
MAV
Reviewed in the United States on February 13, 2024
The mechanic installed it about two weeks ago. So far so good. He did not have any negative comments neither did he complain of any parts being hard to fit.
Customer
Reviewed in the United States on April 1, 2024
The media could not be loaded.
Recommended Products
$300.12
$ 99 .00 $99.00
$1,253.00
$ 99 .00 $99.00