- Jan 5, 2012
- 321
I have a non-performing catalytic converter. This was confirmed by MAY03LT graphing the output from the O2 Sensors using a GM Tech II tool. Thanks MAY03LT!!!
Question is which direct fit catalytic converter should I use? I found these two Magnaflow converters, both direct fit bolt on. The dealer quoted somewhere around $600 - $700 for the part. Any insight on reviews or experience with these CATs would be appreciated.
Magnaflow 23967: $224, Non OEM Grade
Magnaflow 49191: $375, OEM Grade converters are specially formulated with a heavier wash coat and loaded with twice the amount of precious metals (platinum, palladium, rhodium) to provide a much stronger coverage.
OEM Grade is recommended for vehicles that have:
• High Mileage
• History of Check Engine Lights
• Gross Polluters
• California Emissions Equipment Outside of California
Question is which direct fit catalytic converter should I use? I found these two Magnaflow converters, both direct fit bolt on. The dealer quoted somewhere around $600 - $700 for the part. Any insight on reviews or experience with these CATs would be appreciated.

Magnaflow 23967: $224, Non OEM Grade
Magnaflow 49191: $375, OEM Grade converters are specially formulated with a heavier wash coat and loaded with twice the amount of precious metals (platinum, palladium, rhodium) to provide a much stronger coverage.
OEM Grade is recommended for vehicles that have:
• High Mileage

• History of Check Engine Lights
• Gross Polluters
• California Emissions Equipment Outside of California