MagnaFlow Exhaust, Mufflers & Cat Converters - Quality

MagnaFlow 23310 Catalytic Converter: Explorer 5.0L FAQ

MagnaFlow 23310 Catalytic Converter: Explorer 5.0L FAQ

By MagnaFlow Exhaust, Mufflers & Cat Converters - Quality | Published: 2026-11-01

Category: Product Reviews

Straight answers on the MagnaFlow 23310 direct-fit cat for 1996-1998 Explorer 5.0L and 1997-1998 Mountaineer 5.0L: fitment, EPA compliance, and installation.

Quick answer

The MagnaFlow 23310 is a direct-fit, EPA-compliant catalytic converter built for the 1996-1998 Ford Explorer 5.0L and 1997-1998 Mercury Mountaineer 5.0L. It bolts on with no cutting or welding, and its stainless steel construction is designed to resist corrosion.

Why the 23310 is a direct-fit rather than a universal cat

A universal catalytic converter often requires cutting, welding, and fabricating mounts. The 23310 is measured with 3D scanning to match the factory flange and pipe routing for the Explorer and Mountaineer 5.0L, so it installs with hand tools. That saves time and avoids exhaust leaks at improvised joints.

What EPA compliant means for your Explorer or Mountaineer

EPA compliance means the converter is legal for use on federal-emissions vehicles. It is not a CARB-grade converter, so if your vehicle is registered in a state that follows California emissions rules, check local requirements before ordering. For most other states, the 23310 is the correct replacement.

MagnaFlow 23310 FAQ

Which vehicles does the MagnaFlow 23310 fit?
It fits 1996-1998 Ford Explorer 5.0L and 1997-1998 Mercury Mountaineer 5.0L. It is not designed for other engines or model years. Check your door-jamb sticker to confirm engine size and model year before ordering.
Is the 23310 legal in California?
No. It is EPA compliant, not CARB compliant. California and states that adopt CARB rules require a CARB-grade converter. If you live in a CARB state, look for a converter with an executive order number.
Do I need to weld or cut anything to install it?
No. The 23310 is a direct-fit unit that bolts to the existing flanges. You will need basic hand tools and new gaskets for a clean seal. Soak the flange bolts with penetrating oil the night before to ease removal.
Will it keep the check engine light off?
MagnaFlow states the 23310 is designed to keep the check engine light off when installed on a vehicle with no other emissions faults. If the light returns, scan for codes before assuming the converter is at fault. Fix any upstream engine codes first; a rich-running engine can damage a new converter.

Product facts

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MagnaFlow 1996-1998 Ford Explorer 5.0L / 1997-1998 Mercury Mountaineer 5.0L HM Grade Federal / EPA Compliant Direct-Fit Catalytic Converter 23310

MagnaFlow 1996-1998 Ford Explorer 5.0L / 1997-1998 Mercury Mountaineer 5.0L HM Grade Federal / EPA Compliant Direct-Fit Catalytic Converter 23310

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