MOCW 2.5-inch Catalytic Converter Universal Front — 2-Pack Stainless Steel, 400-cell High-Flow

The MOCW 2.5-inch universal front catalytic converter is a stainless-steel, high-flow direct-replacement unit (2-pack) designed to lower exhaust backpressure and meet Federal EPA emissions standards on non-restricted vehicles.

This pair of MOCW catalytic converters fits exhaust systems with 2.5-inch inlet and outlet pipes and an 11-inch overall body length. Each converter uses a 400-cell substrate inside a corrosion-resistant stainless-steel shell, engineered to offer improved flow characteristics over many worn or clogged OE units. These are universal front converters made for vehicles built to Federal EPA specifications and are not legal for sale or use in certain restricted states—confirm local regulations and vehicle requirements before purchasing.

How will this converter affect my vehicle’s exhaust flow and performance?

The MOCW high-flow design reduces backpressure compared with many aged original converters, which can help the engine breathe more freely. That improved flow can support smoother throttle response and may help maintain factory performance where the original converter was clogged.

• 400-cell substrate for balanced filtration and flow
• 2.5" inlet/outlet to match common aftermarket exhaust piping
• Stainless-steel construction reduces corrosion and extends service life
• Designed as a front (direct-replacement) universal fit for compatible exhaust layouts

Is this catalytic converter legal where I live?

These MOCW converters meet Federal EPA requirements but are not compliant with certain state-specific regulations. They cannot be sold for use in California, New York, Colorado, or Maine; check your vehicle registration state and local aftermarket laws before ordering.

• EPA-compliant for vehicles built to Federal standards only
• Not legal in CA, NY, CO, or ME — do not purchase if registered there
• Verify local rules and vehicle model year applicability prior to installation

What are the physical specifications and installation notes?

Each converter measures 11 inches overall with 2.5-inch inside diameter inlet and outlet connections and comes as a two-piece set. Installation is typically a direct replacement but may require cutting, clamping, or welding; professional installation is recommended to assure leak-free joins and proper orientation.

• Overall length: 11 inches; inlet/outlet: 2.5 inches ID
• Contains two converters per package (2 PCS)
• No oxygen sensor ports or air tubes included; reversible fit allowed
• May require cutting/welding — seek professional installation if unsure

What durability and warranty can I expect from this product?

The shell and components are constructed from 409-grade stainless steel to resist corrosion and wear in typical road conditions. MOCW offers a manufacturer warranty that covers defects for the stated period; review warranty details and mileage limits before purchase.

• 409 stainless-steel body for corrosion resistance
• Manufacturing quality aimed at longer service life than rusted OEM units
• Warranty: manufacturer coverage specified at time of sale (confirm terms)

Who is this for: The MOCW 2.5" universal front catalytic converter 2-pack is intended for vehicle owners and mechanics who need an EPA-compliant replacement for federal-spec vehicles with 2.5-inch exhaust piping. It suits drivers replacing clogged or damaged front converters on non-restricted-state vehicles and installers who can perform cutting or welding for a secure fit. Do not buy if your vehicle is registered in California, New York, Colorado, or Maine, or if your application legally requires a state-specific CARB-certified converter.