MagnaFlow Conv GM 23456 23X6.5X4 2.25/2.25 93456

MagnaFlow GM Direct-Fit Catalytic Converter — Part #93456

Federal / EPA compliant • 23" overall length • 2.25" inlet & outlet

Replace your worn OEM converter with a direct-fit MagnaFlow that keeps your exhaust routing stock and your emissions legal outside California. The MagnaFlow 93456 is a stainless-steel, bolt-on catalytic converter built for GM applications — 23" overall length with 2.25" inlet and outlet piping, an OEM-style ceramic core, and a factory-friendly design that makes swap-outs fast and reliable.

Why it’s useful

This is a no-fuss replacement: it bolts in where your original did, uses factory hangers, and keeps the same general exhaust geometry so you don’t have to re-route or fabricate. The ceramic substrate provides dependable emissions conversion, and the stainless shell with included heat shield gives long-term durability.

Key features

• Part number: 93456
• Direct-fit for GM — uses factory hangers and bolt-on flanges (no welding).
• Federal / EPA (49-state) compliant — not CARB/California certified.
• 23" overall length; OEM-style body length and profile for easy installation.
• 2.25" inlet and 2.25" outlet (bolt-on).
• Ceramic substrate (OEM core) for consistent catalytic performance.
• Stainless steel construction with aluminized-steel heat shield included.
• Gaskets, clamps, and mounting hardware not included.

Technical specs (at-a-glance)

• Overall length: 23.00 in
• Body length (approx): 12.00 in
• Body width: 5.00 in
• Inlet / outlet diameter: 2.25 in (bolt-on)
• Substrate: Ceramic
• Construction: Stainless steel (heat shield: aluminized steel)
• Emissions: Federal / EPA (49-state)
• Installation type: Bolt-on direct-fit

Installation & fitment notes

• Designed as a direct OEM replacement — should align with factory hangers and flange positions for eligible GM models.
• Because flange patterns and O₂ sensor locations can vary by vehicle, confirm fitment for your specific year/model before ordering.
• Professional installation recommended if you’re not experienced with exhaust work. Gaskets and mounting hardware are typically required but not included.

Who this is for

Technicians, DIYers, and fleet managers who want a reliable, legal (outside CA) direct-fit replacement that restores emissions control without lengthy downtime or fabrication.