High-Flow Catalytic Converter for 1999-2007 Chevy Silverado/GMC Sierra 1500/2500 & Tahoe/Avalanche/Suburban/Yukon/Escalade (4.3L 4.8L 5.3L) - Direct Fit Replacement for Improved Engine Performance & Emissions Compliance - Perfect for Off-Roading, Towing & Daily Driving

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About this item

• EPA Compliant: Designed for use on OBDII vehicles. Not legal for sale or use in California and Colorado. Legal in New York and Maine on EPA Federal Emission Equipped Vehicles only. Consult your state’s aftermarket converter regulations for details.
• Direct-Fit Design: Direct-fit bolt-on replacement solution with OE-style hangers, brackets, routings and heat shields for easy installation that doesn’t require specialized fabrication and/or welding.
• Strong & Durable: Stainless steel body & aluminized body & pipe, features thick OE-style flanges, hangers & brackets for strength and durability.
• Keeps Check Engine Light Off: OE-style high-technology washcoat and optimal precious metal load delivers required reduction in tailpipe emissions to match vehicle application.
• Buy With Confidence: Backed by Nilight’s 25,000-mile/40,000-kilometer emissions & 5-year 50,000-mile/80,000-kilometer structural integrity warranty.

Silverado/Avalanche/Suburban/Tahoe/GMC Sierra/GMC Yukon Direct Fit Three-way Catalytic Converter

How Do Three-way Catalytic Converters Work?

A three-way catalytic converter has three simultaneous tasks:

1. Reduction of nitrogen oxides to nitrogen and oxygen: 2NOx → xO2 + N2
2. Oxidation of carbon monoxide to carbon dioxide: 2CO + O2 → 2CO2
3. 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!

• Not legal for sale or use in California and Colorado
• Consult your state’s aftermarket converter regulations for details

EPA COMPLIANT

Fitment:

• 1999-2006 Chevy Silverado 1500 4.3L 4.8L 5.3L
• 2007 Chevy Silverado 1500 Classic 4.8L 5.3L
• 1999-2000 Chevy Silverado 2500 5.3L
• 2002-2006 Chevy Avalanche 1500 5.3L
• 2000-2006 Chevy Suburban 1500 5.3L
• 2000-2006 Chevy Tahoe 4.8L 5.3L
• 1999-2007 GMC Sierra 1500 4.3L 4.8L 5.3L
• 1999-2000 GMC Sierra 2500 5.3L
• 2000-2006 GMC Yukon 4.8L 5.3L

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.