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Mercury Grand Marquis Catalytic Converters

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Latest Customer Reviews

Magnaflow Catalytic Converters - 49 State Legal Reviews


Better than stock

Reviewed By Jason H (Carrollton, TX) Reviewed for a 1988 Mercury Grand Marquis —6/9/2009 8:42 PM

But not high flow. They allow a little better flow than the original converters, but not much more. They do sound better though. If I can get true duals on my car, they may work even better and the y pipe may be the main issue I'm having. Installation was a cake walk. Getting the old ones off was a pain, but these went on very easily. Would have been better if they matched up to the OE air injection without modification, but that's not a big deal.

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Flowmaster Direct-fit Catalytic Converters - 49-State Legal Reviews


Ron

Reviewed By Ronald K (Cadiz, OH) Reviewed for a 2000 Chevy Camaro —8/17/2016 6:42 AM

Perfect fit best Quality I would recommend this product as an OEM replacement

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Eastern Catalytic Direct-fit Catalytic Converters - 50-State Legal Reviews


Decent quality for price

Reviewed By Armando O (Gardena, CA) —7/28/2016 11:39 PM

Only contains about half of the catalyst as the factory one. The inner area of the cat is mostly empty. The Honda factory car was $1,100.

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Year Range For Mercury Grand Marquis Catalytic Converters